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Mobile Wireless Technology (MWT) 2014
1 INTERNATIONAL E-CASH
NAME: DARINI SHANMUGAVEL (TP025581)
RARSHVINDRAN A/L MASLAMANI (TP026565)
VETRIKUMAR MANUGARAN (TP033342)
MERVYN ANTHONY FRANCIS (TP029324)
INTAKE CODE: UC2F1310IT (BIS), UC2F1310MBT, UC2F1310 (NC), UC2F1310 (ISS)
PROJECT TITLE: DEPLYOYING WIMAX NETWORK IN INTERNATIONAL E-CASH
MODULE NAME: MOBILE AND WIRELESS TECHNOLOGY (CT090-3.5-2-MWT)
LECTURER'S NAME: DAVID TAN GEI KAR
HAND IN DATE: 24TH JANURY 2014
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Table of Contents
Introduction & Company Background............................................................................................ 3
Scope and Limitations..................................................................................................................... 4
Content Body .................................................................................................................................. 5
Site Survey .................................................................................................................................. 5
Hardware and Software Requirements ...................................................................................... 16
Economic Feasibility .................................................................................................................... 36
Security Implementation and Considerations ........................................................................... 43
Monitoring and Maintenance .................................................................................................... 51
Conclusion .................................................................................................................................... 67
References ..................................................................................................................................... 68
Gantt Chart .................................................................................................................................... 74
Workload Matrix ........................................................................................................................... 75
Marking Scheme ........................................................................................................................... 76
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3 INTERNATIONAL E-CASH
Introduction & Company Background
International E-Cash is a company which provides simple, convenient and a secure way to its
clients to send and receive money to other individuals, domestic as well as worldwide. The
company also provides money exchange service to its clients. Currently, the company has
decided to open several branches in shopping malls in Kuala Lumpur. Hence, the headquarters
of International E-Cash will be located in Midvalley Shopping Mall while there will be two
branches serving the headquarters around Kuala Lumpur to ensure high quality of service. The
company has decided to implement wireless network connection between the headquarters and
the branches.
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Scope and Limitations
1. Project Budget
There are no budget limits specified. Hence, the cost limit was ignored when selecting and
implementing the wireless technology in International E-Cash.
2. Branches
The numbers of branches are not specified. Hence, it has been decided to implement 2 branches
around Kuala Lumpur area.
3. Wireless Technology
The company didn't mention which wireless technology to use for deployment of wireless
network. Hence, it is assumed that our team is free to choose any wireless technology for
International E-Cash wireless network implementation.
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Content Body
Site Survey
According to Best Practices for Wireless Site Design (n.d.). By conducting site surveys,
efficient and successful wireless networks can be deployed. Site surveys can determine signal
coverage, dead spots, potential roaming behavior, interfering sources and etc. To set up the
wireless network for international e-cash is no easy task as lot of factors needs to be taken into
consideration. For example, wireless standard, interferences, location and licensing. After such
things are considered, only then it wise to set up a wireless network.
i. Wireless standard
Wireless standard is a set of guidelines for different types of network communication.
Typically, there are each standard for each condition like for Local Area Networks the Wireless
LAN 802.11 standard is used and for Metropolitan Area Networks, WiMAX 802.16 standard is
used to provide network coverage for a city and so on. Here, for International E-cash network
needs to be distributed across the city for the headquarters and branches to communicate with
each other.
To provide wireless network coverage for International E-cash, only WiMAX standards is
suitable for International E-cash. WiMAX stands for Worldwide Interoperability for Microwave
Access according to Brain and Grabianowski, (n.d). To set up a WiMAX network for allowing
long range network communication needs two importance things, a base station and a receiver
according to about.com(n.d). However, there are several variations of WiMAX standards that
can be implemented for International E-cash mainly 802.16 and 802.16e. The first WiMAX
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standard is the first of its kind whereas the other is an extension to the 802.16-2004 standard as
this advanced from it initial predecessor.
Characteristic Fixed WiMAX Mobile WiMAX
Industry Standard 802.16-2004 802.16e-2005
Modulation OFDM OFDMA
Frequency Range 2GHz-11GHz 2GHZ-6GHz
Duplexing TDD,FDD TDD,FDD(Optional)
Preferred Frequency Bands 2.5GHz, 3.4 - 3.6GHZ &
5.8GHz
2.3 - 2.7GHz, 3.3 - 3.8GHz
Source: L.Harte, K.Kalaichelvan (2007)
Analysis - From here, it is clearly seen that IEEE's 802.16e is the latest standard which means its
more up to date. 802.16e has more access types than Fixed WiMAX supports Orthogonal
Frequency-Division Multiple Access modulation whereas 802.16 only provide Orthogonal
Frequency Division Multiplexing. In terms of duplexing both standards support Time Division
Duplexing and Frequency Division Duplexing but Mobile WiMAX's Frequency Division
Duplexing is made optional. Mobile WiMAX supports handoffs and Fixed WiMAX does not.
Mobile WiMAX has more service providers to cater many network solutions.
Technical Feasibility - Having many frequency bands provides more specific and suitable for
International E-cash to choose using Mobile WiMAX. Orthogonal Frequency-Division Multiple
Access makes International E-cash's wireless deployment flexible. The frequency range of
Mobile WiMAX though shorter but it is more effective when applied for International E-cash.
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Recommendation - The standard to be recommended for International E-cash is 802.16e with a
frequency of 3.5 GHz. This is such as the International E-cash has to communicate with each
branch as well as its headquarters in KL. Having a high frequency also provides wireless
communication.
ii. Licensing
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Source: Malaysian Communications and Multimedia Commission(n.d)
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The license for the WiMAX standard chosen for International E-cash can be obtained from the
Malaysian Communications and Multimedia Commission. According to MCMC(n.d), a business
like International E-cash needs to have a class license as they need to deploy wireless network
facilities. The processing days for obtaining a class license will take seven days.
To obtain a class license, there are a few criterias to be met:
1. Two copies of Form D(Class license application form)
2. Registration fee of RM 2500.00
3. Applicants legal status documents
4. Organizational profile
5. Proposal of service
6. Details as per the checklist attached
Economic feasibility - The application for the class license class costs about RM 2500.00
iii. Interferences
When it comes to interference, it has to be agreed that any radio frequency has interferences
including the standard recommended for international e-cash. Potential interferences can be from
radio frequencies of satellites, military networks and etc. To deter such inferences, proper
hardware and software is required mainly a spectrum analyzer and a site survey software.
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Images
Name Spectrum Master MS2713E
BumbleBee-EX
Spectrum Analyzer
Compatibility All 802.16 standards 802.16d & 802.16e
Features - Tracking generator,
- Daylight viewable display
- Interference analysis
- Field Strength Measurements
- Coverage verification &
network optimization
- GPS geo-coding
accuracy
- Compatible with
Google Earth
- Time stamping
Price $1000 onwards $4500 - $5000
Manufacturer Anjitsu Berkeley Varitronics
Systems
Source: Anjitsu.com (n.d) & bvsystems.com(n.d)
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Analysis - From what is noticed, Spectrum Master MS2713E is made more compatible to
WiMAX standards than the BumbleBee-EX Spectrum Analyzer. It is also cheaper by few
thousands when compared with the BumbleBee-EX Spectrum Analyzer.
Technical Feasibility - Fields strength measurements and interference analysis can identify
electromagnetic fields and other sorts of inferences around International E-cash's geographic
locations. Besides that, its coverage verification feature shows that effective WiMAX coverage
can be established for International E-cash. This helps to plan better for International E-cash's
wireless deployment Its daylight display has a better viewing experience in details. This helps
the International E-cash network consultants to plan ahead for better deployment as well.
Recommendation - Anjitsu's Spectrum Master MS2713E will be used in identifying interferences
around International E-cash's headquarters as well as its branches.
Images
Name DragNet Mobile WiMAX Site
Survey software
YellowFin WiMAX
software
Manufacturer Berkeley Varitronics Systems
Compatibility 802.16e
Features - GPS positioning in real-
time
- KML, PDF, Excel format
- USB connectivity
- Maintains and optimizes
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report support
- Google Earth compatibility
network
- Needs a dual channel
transmitter for detailed network
analysis
(Source: bvsystems.com)
Analysis Both of the softwares from the same vendor and support the same 802.16e standard. It
also seems that YellowFin WiMAX software is an older version of DragNet Mobile WiMAX
Site Survey software. Therefore, the latter is an updated version. When looked at both features
the GPS positioning in DragNet Mobile WiMAX Site Survey software device dependent for
network analysis as YellowFin WiMAX software requires an additional device for better site
survey results.
Recommendation - After comparing both softwares, the DragNet Mobile WiMAX Site Survey
software is best suited for International E-cash as it is compatible with the WiMAX standard
recommended for International E-cash that is 802.16e and secondly, its GPS positioning feature
can be used to collect data in real-time outdoor site surveys.
iv. Geographical location
Location is an essential part for International E-cash as its headquarters and two of its branches
should be located within shopping complexes and there are quite a number of shopping malls in
the whole of Kuala Lumpur. The main ones include Midvalley Megamall, The Boulevard,
SOGO Departmental Stores, and Sunway Pyramid. The most basic criteria for location is that
there should be less or no physical interference like buildings, other towers as mentioned by
D.Sweeney(2005).
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Location The
Boulevard
Midvalley
Megamall
Sunway
Pyramid
SOGO
Departmental
Stores
Physical surroundings Many Less Less Less
Size (sf) 5479 3631 2250 3160
Number of floors. 2 2 1 2
Rental per month
(RM)
60,000 -
65,000
24,480 12,375 22752
Source: propwall.com.my(n.d)
Analysis - The Boulevard has many physical surroundings around it. This affects the
performance and coverage of WiMAX networks. When compared, the other three locations are
more suitable. In terms of size, though The Boulevard has the largest area per square feet which
makes it a suitable location but due to its physical surroundings it cannot be chosen but
Midvalley megamall can be chosen for the headquarters of International E-cash for the size and
its lesser physical surroundings compared to The Boulevard, Sunway Pyramid and SOGO (KL)
Departmental Stores.
Lastly, for the two branches, Sunway Pyramid and SOGO (KL) Departmental Stores are
both located at two different ends. The former is at Bandar Sunway and the other is at the heart
of Kuala Lumpur and Midvalley Megamall is located in between these two geographically.
These two have a better potential to be suitable branches for International E-cash. When the
rental for each location is analyzed, it seems that The Boulevard is the most expensive with an
estimated amount of RM 60000 to RM 65000.
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Figure 1 shows distance between HQ and Sunway branch - 11.2km
(Source: maps.google.com)
Figure 2 shows distance between (A) HQ and (B) SOGO branch - 7.9km.
(Source: maps.google.com)
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Figure 3 shows locations of (A) Midvalley headquarters and Sunway branches (B) and SOGO
(C).
(Source: maps.google.com)
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Recommendation The headquarters for International E-cash will be situated at Midvalley
Megamall for its strategic location in Kuala Lumpur city and also the size of the office lot is big
enough with two floors. The pricing for the selected locations are still reasonable compared to
The Boulevard.
Economic feasibility The rental for the headquarters situated in Midvalley Megamall is RM
24,480 per month whereas the branches, Sunway Pyramid and SOGO (KL) Departmental Stores
are RM12375 and RM22752 respectively.
Hardware and Software Requirements
In order to set up a wireless connection between the Headquarter (HQ) of International E-Cash
and the branches, there are few hardware and software that will be required to develop and
implement the wireless connection.
HARDWARE
They are a few hardware that would be needed to implement the wireless connection between
HQ and its branches are as follows:
(a) WIMAX BASE STATION
(b) Backhaul Devices
(c) Antennas
(d) Subscriber / Customer Premise Equipment (CPE)
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Figure 4 shows an example of a base station
Figure 5 shows and example of an Antenna for base station
Figure 6 shows an example of an Indoor CPE
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Figure 5 shows an example of an Outdoor CPE
Each of the hardware mention above is crucially important to ensure a successful Wimax
deployment for International E-Cash wireless architecture. In the sections below, each main
component that has been chosen for our wireless network will be briefly explained.
Base Station
A base station is referred as a fixed communication location and is considered to be a part of a
wireless network (Techopedia, 2014). The base station functions by broadcasting information in
the form of signals to and from a transmitting/ receiving unit on the other side of the wireless
network. A base station is one of the most important hardware components in a wireless network
infrastructure. Selection a base station is critical as it determines Quality of Service (QoS)
provided to all subscribing units in its network. Hence, we have chosen one of the best Wimax
standard base stations to be deployed. An analysis has been conducted on the chosen base station
and justifications have been made why it is chosen among the vast base stations available in the
market.
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The base station that we have chosen is the PureWave Quantum 6600 which is manufactured by
PureWave networks. This base station is compact in size, and is a high performance Mobile
Wimax base station and has been integrated with PureMax Smart Antenna technology. In a
standard antennas technology, energy is wasted since energy radiates indiscriminately and also
cells interfere with each other, which decreases maximum capacity and creates network
complexity. The smart antenna technology will be further discussed in the antenna section.
The Purewave 6600 base station can be deployed outdoors without the need of any shelter and
can be easily mounted anywhere require to provide its service. It has up to 6Rx and 6Tx antennas
and is able to provide coverage of approximate 24km with a standard base Wimax CPE. It is able
to cover a vast distant in rural areas , maximize the coverage in Non Line of Sight (NLOS)
conditions , delivering superior service to indoor subscribers and is able to withstand harsh
climate and conditions when deployed outdoor .
The base station is also equipped with Purewave Software Defined Radio Architecture (SDR)
which provides a great benefit to the future of International E-Cash. The software will be
discussed further in the software section later on. This base station, when connected with a
backhaul device, may provide effective data transfer between 2 base stations located in a wide
distance without any loss in the quality and speed. This means that as more branches of
International E-Cash is opened in the future; more base stations can be added to cover a wide
distance and radius to provide excellent undisrupted data transfer between all the base stations
and back to the branches. A GPS is also attached to provide real time accurate locations of the
base station at all times.
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Technical Feasibility of Base Station
Figure 6 shows specifications of The PureWave Quantum 6600 Base station by PureWave
Source:http://www.purewavenetworks.com/portals/0/docs/PureWave_Quantum6600_DS_May2011.pdf
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Figure 7 shows PureWave Quantum 6600 base station
Figure 8 shows PureWave 6600 base station in action
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Comparison of two base stations
PureWave Quantum 6600 HiperMAX
Frequency Band (GHz) 2.3-2.4, 2.496-2.69, 3.3-3.4,
3.4-3.6, 3.6-3.8,3.65(US)
2.3, 2.5, 3.3,
3.5, 3.7, 4.9
Antenna Technology MIMO, Smart Technology MIMO
Environmental Protection Lightning, Surge Protector,
Vibration and dust proof,
Extreme weather protection
ETS 300 019-1-4 Class 4.1E
ETS 300 019-1-3 Class 3.2
Coverage distance Up to 24km Up to 15km
Table 1: Comparison of two base stations
Base Station Analysis, Evaluation and Justification
This base station was chosen for some specific reason. Below are the results of an analysis.
Chosen Base Station: PureWave Quantum 6600 by PureWave Networks.
Features Justification Comments
Extensive Superior Range The Purewave base station is able to equip up
to 6 antennas at once which greatly increase
both uplink and downlink performance,
Up to 24 km coverage
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providing maximum coverage to users.
Greater Capacity The PureWave base station has increased
throughput at any range due to improved link
performance factor, making it very useful to
cover the distance between our branches.
Aggregate(per sector):
Up to 53Mbps,
Downlink: Up to
43Mbps, Uplink: Up to
20Mbps
Flexible Mounting The unit can be mounted nearly anywhere
without the need of remote RF heads.
Towers, utility
poles, walls, roof tops
100 % Weather and
Lightning Proof
The base station is able to withstand harsh
weather conditions and there is no need for us
to invest on providing shelter for it.
Temperature : (
-40C to +55C)
Weatherproofing:
(IEC IP67 cables)
Others : Surges and
Lightning Protection
Software Defined Radio This is a feature in which it supports remote
field upgrades of any future new
functionalities and standards, making it very
suitable for International E-Cash, since this is
a one-time investment and any new
functionalities and standards can be easily
upgraded with this base station.
None
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Powerful Management This base station comes along with a
management software which will help us to
continue monitoring the performance and the
conditions of the base station and the overall
wireless network at all times .Hence, there is
no need to purchase a third party management
software for this base station, thus reducing
cost.
PureView EMS/NMS,
Remote CLI,
Web Interface, SNMP
v2c & v3
Smart Antenna Technology The self-calibrating antenna technology allows
this base station to effectively delegate its
energy into needing subscriber unit without
wasting any energy, which may result in
slower data transfer.
MIMO Matrix A,
MIMO Matrix B,
Cyclic
Delay Diversity, MRC,
UL Collaborative
Spatial Multiplexing
Table 2: Analysis of the chosen base station for E-Cash wireless network
Recommendation
We recommend that International E-Cash should take the initiative to continuously seek any new
updates and improvement special designed for this base station and implement it when possible
to ensure effective service from the base station, which allows International E-Cash to provide
service to its clients effectively. In case there are more branches to be opened in the future,
International E-Cash are strongly recommended to implement more base stations to provide
better connectivity to the respective base station without overloading a base station to transmit to
multiple base station.
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Backhaul Device
What is backhaul device? - Transmission of data between a cell site and
a switch (Webopedia, 2014).
The purpose of backhaul device? -provides optimal point to point connectivity
for high-throughput, long distance links.
-connect two base stations which are at
distance from one another
Benefits of backhaul device - allocate bandwidth in the specific direction
needed
- optimize data traffic to provide a very high
throughput over high bandwidth long range
links between the base stations
Justification of using backhaul device in E-Cash -the backhaul will create a point to point
connection between the two base stations.
- base stations will be able to allocate
bandwidth respectively in the directions to
the specific branches without loss of
throughput
-efficient signal transmitting between two base
station
Chosen backhaul device for E-Cash
implementation
Ligo PTP 5-23/5N MiMo backhaul device
Table 3: Backhaul Device Justification and Analysis
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Figure 9 shows a backhaul device which connects multiple base stations
Hence, for International E-Cash wireless network, we will be using Ligo PTP 5-23/5N MiMo
backhaul device to provide a backhaul connection between the two base stations operating in
different locations. The main purpose we decided to implement a backhaul device is to preserve
the quality of data transfer between two base stations when travelling over long distance, hence
achieving high performance and reliability of transfer speed, high bandwidth connection and
throughput
Figure 10 shows Ligo PTP 5-23/5N MiMo backhaul device
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Figure 11 shows Ligo PTP 5-23/5N MiMo backhaul device features
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Technical Feasibility of Backhaul Device
The specification of the chosen backhaul device is as below.
Figure 12 shows Ligo PTP 5-23/5N MiMo specifications
(Source: http://www.gowifi.co.nz/specs/LigoPTP23_5MiMo.pdf)
Additional Note: This backhaul device is protected again harsh weather conditions and also from
lightning. Hence, no extra protection is needed.
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Key Features
Dedicated Access
Backhaul
Private networks
Flexible center channel and channel width capability (20/40 MHz) for throughput
optimization
Radio rate of up to 300Mbps
True TCP throughput up to 220 Mbps
Gigabit Ethernet port
Advanced proprietary W-jet wireless protocol
Internal Accelerometer
65,000 High packet-per-second (PPS) rate ideal for VOIP backhaul applications Low packet latency (2ms)
Great spectral efficiency (7.5 bit/ Hz)
ARQ (Selective Repeat) for very high throughput
Dynamic TDD for allocating bandwidth in real-time to the direction needed
Integrated dual-polarized antenna (2 N-type conectors for the LigoPTP 5-N MiMo
product)
PoE built-in for single cable installation
Advanced security technologies
Comprehensive management features
Web GUI
Command line management via SSH
RCMS server support for configuration
SNMP V1/2/3 with traps supporting MIBs: 802.11, 802.1x, MIBII
Syslog support
Compatible with LigoWave link calculator
Real-time alerts
Rugged articulating bracket solution for multi-facet mounting
Oled screen and beeper for alignment
IP-67 compliant
Figure 13 shows Special Features of Ligo PTP 5-23/5N MiMo
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Antenna
An antenna is said to be a conductor that can transmit, send and receive signals such as microwave, radio
or satellite signal (Webopedia, 2014). In our wireless network, antennas play a crucial role to transmit and
send wireless signal to other receiving antennas in order to transfer information in our wireless network.
All the base stations will be equipped with suitable antennas to transmit and receive signals.
For our wireless connection, we would be using two types of antenna which is sector antennas and panel
antennas. The sector antennas will be able to broadcast at angles of 60,90 and 120 degrees. The panel
antenna will be the backhaul antenna, Ligo PTP 5-23/5N MiMo, which will provide point to point
backhaul broadcasting between both base stations.
Technical Feasibility of Antenna
Sector Antennas 60 degrees 90 degrees 120 degrees
Frequency range 3400-3600-MHZ 3300-3800-MHz 3400-3600-MHz
Gain (dBi) 18dBi 18dBi 15dBi
Horizontal beam
width
60 degrees 90 degrees 120 degrees
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Vertical beam
width
7 degrees 12 degrees 7 degrees
F/B ratio (dB) 25-dB > 23 > 25
Polarization Horizontal or vertical Vertical Vertical
Impedance 50 50 50
Maximum input
power
100 W 500W 100W
Connector N female or
customized
N female N female
Antenna dimension 72017560mm 103016075mm 70016070mm
Table 4: Description of all the three types of wimax sector antennas [Data from(Gu & Li, 2011]
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Operational Feasibility
After the comparison of antennas above, we have chosen to use the 120 degree antenna in our
base stations to provide connection to all CPE. The reason we choose sector antennas compared
to Omni-directional antennas are because omni- directional antennas provide a 360 degree
coverage but has low Quality of Service (QoS) since the signal are dispersed at a wider area. By
using the 120 degree antennas, the signal will be transmitted directly towards the location where
our branches are exactly without the loss of signal quality. The base station will be connected
with the other base station via the backhaul antenna which provides Line of Sight (LOS)
connection. The Bukit Bintang base station tower will be built in Bukit Bintang area, providing
LOS connection to the headquarter in Midvalley, since the Customer Premise Equipment (CPE)
at Midvalley Headquarter would be an outdoor CPE.
The branch at Sogo will also be connected via Non Line of Sight (NLOS) to the Bukit Bintang
Tower. The Petaling Jaya Tower will provide Non Line of Sight (NLOS) connection to Bandar
Sunway branch via an indoor CPE since there are many obstructions between both the locations.
The Petaling Jaya tower will also provide LOS connection to the HQ at Midvalley via outdoor
CPE at Midvalley. Hence, the 120 degree antenna provides full sector coverage to all the
locations of the branches as well as the Headquarter. The antennas will help to transmit the
signal to all branches with maximum quality as possible.
Customer Premise Equipment (CPE)
In our wireless network, we will be using CPE's to gain wireless access from the base stations
that will be deployed. In order to choose whether to use an indoor CPE or outdoor CPE, we first
researched on two factors, Line of Sight (LOS) and Non Line of Sight (NLOS).
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Line of Sight (LOS)
Line of sight is when a signal travels over the air directly from a wireless transmitter to a
wireless receiver without passing through any obstruction. If LOS is successful implemented, the
signal transmitted can reach long distance with better signal strength and higher throughput.
Non Line of Sight (NLOS)
Non Line of Sight happens when a signal travels over from a wireless transmitter to a wireless
receiver after encountering multiple obstructions. It is possible for the signals to be refracted,
reflected, diffracted, absorbed or scattered and this multiple signals will reach the receiver at
different times, from different paths and different strength. However, there are few method
implemented to overcome the problem in NLOS.
Figure 13: LOS AND NLOS
Figure 14 shows LOS and NLOS
Hence, after analyzing the impact of LOS and NLOS, we have decided to make use of both
indoor and outdoor CPE's to receive signals from base stations. We would be using AirSpan
CPE's in our wireless network.
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Indoor CPE
Figure 15 shows M-Easy V35 Indoor CPE by Airspan
Manufacture Model AWB, RG211
Frequency 3.6-3.8 GHz
Chipset Sequans
Maximum Transmit Power (dBm) 23
Antenna 2 external antennas, 5dBi
Special Features Data only
Table 5: Indoor CPE specification
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Outdoor CPE
Figure 16 shows outdoor CPE by Airspan
Manufacture Model KZ, Airstream 4001
Frequency 700, 800 MHz, 2.3-2.7, 3.5 GHz
Chipset Sequans
Maximum Transmit Power (dBm) 2*23
Antenna 15dBi
Special Features Internal or external antenna
Table 6: Outdoor CPE specification
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Economic Feasibility
Hardware Price
Base station $ 11995 x 2 units = $ 23990
CPE (Outdoor) $300
CPE (Indoor) $150x2=$300
Backhaul Device $649 x 2 =$1298
Antennas (120 degree) $7000
Total (estimated ) $32888 (RM 109319.84)
Table 7: Economic Estimation for hardware
Software
Besides the hardware components, we now move on to the software that we will be using while
operating the International E-Cash wireless network. In this part, we will be talking about the
software to monitor the operation of our base stations and backhaul device. The software is as
listed below.
PureView Network Management System (NMS)
The PureView NMS enables the easy management of wireless access networks. Using an
intuitive interface, it delivers versatile and powerful management options. By using this
software, E-Cash can continuously monitor their network and analysis statistics based on the
history stored but the software on the network usage. The PureView management software also
delivers powerful management capabilities for the PureWave Quantum 6600 base stations that
will be used by International E-Cash in its wireless network. Hence, monitoring the performance
of the base stations will be easy and effective. This software is Operating System independent so
it can be operated on both Windows and Linux platform.
Some of the features of the PureView Network Management System software are:
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Google Maps integration
Configuration: Basic or Advanced
Bulk Operations
Configuration backup and restore
Service Flow
Discovery : Manual or Automatic
NMS user ADMINISTRATION : users, profiles views and as
Server access through web browser or remote client
Security Management
Network Discovery and Mapping
Logical and Map views
Fault and Alarm Management
Real Time and History Performance Management
Figure 17 shows features of Network Management System
Recommendations:
Hardware Recommendation
Base Station We recommend that International E-Cash
should take the initiative to continuously seek
any new updates and improvement special
designed for this base station and implement
it when possible to ensure effective service
from the base station, which allows
International E-Cash to provide service to its
clients effectively. In case there are more
branches to be opened in the future ,
International E-Cash are strongly
recommended to implement more base
stations to provide better connectivity to the
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respective base station without overloading a
base station to transmit to multiple base
station.
Antenna We recommend that International E-Cash
implements more antennas if more branches
are opened in different location in the future
to provide better throughput and connectivity
to the specific branch.
Table 8: Proposed Recommendations
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Figure 18 shows Petaling Jaya tower
Legend:
Branch / CPE
Base station tower
Tower signal
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Figure 19 shows Bukit Bintang Tower
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Figure 20 shows Overall Overview Wireless International E-Cash Wimax Solution
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Location Location Distance
Petaling Jaya Tower Bandar Sunway Branch 5.1km
Petaling Jaya Tower Midvalley HQ 12.0km
Petaling Jaya Tower Bukit Bintang Tower 18.6km
Bukit Bintang Tower Sogo Branch 3.4km
Bukit Bintang Tower Midvalley HQ 7.8km
Table 9: Distance between Tower, HQ and Branches
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Security Implementation and Considerations
Protocol Layers of WiMAX
How does the 802.16e standard security works?
Figure 21 shows OSI Layer
(Source:hossainhere.files.wordpress.com/.../analysis-and-assessment-the-security-i..)
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Based on the figure 20, it shows that IEEE 802.16 network standard follows the Open System
Interconnection (OSI) which has seven-layers which also known as OSI Seven layers. It begins
from the Application layer or layer 7 on the top and finishes with Physical (PHY) layer, or layer
1, on the bottom.
The seven layers in the OSI Layer have their different function. Each layer utilizes the functions
of the lower layer utilizes the functions of the lower layer and transfers data to its higher layer.
For Example, Internet Protocol (IP) is in the Routing Layer or in the Layer 3sends data to its
higher layer which is Transport Layer which also known as layer 4.Generally, the higher layers
are implemented in software and the lower layers are implemented in hardware.
The specific layers which plays vital role on the WiMAX /802.16 is physical and Data Link
layers. As we go deeper in Data Link Layer, there are divided into two sub layers. These are
Logical Link Control (LLC) layer and Media Access Control (MAC) layer. The physical
connection is responsible to the between two communication entities. Besides, the Media Access
Control (MAC) layer is responsible for the maintenance of the connection.
Figure 22 shows Protocol Architecture of IEEE 802.16.
(Source: www.ijcaonline.org/volume20/number2/pxc3873199.pdf)
1) Convergence Sub-Layer
2) MAC Common Part Sub-Layer
3) Security Sub-Layer
4) Physical Layer
MAC Lay
Physical Layer
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Above Figure 21 shows the MAC Layer is segmented into three sub layers such as CS
(Convergence Sub layer), the CPS (Common Part Sub layer) and the Security Sub layer.
This sub layer plays a vital role on the security on IEEE 802.16. The reason is this is the only sub
layer which provides secure key exchange and encryption which has protocols and
authentication.
Figure shows security MAC sub layer
Source: http://www.cse.wustl.edu/~jain/cse571-09/ftp/wimax2/
3) Security Sub-Layer
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Comparison
Authentication
Types of Authentication in IEEE 802.16e
EAP
Differences
RSA
http://www.codealias.info/technote
s/performance_evaluation_of_wire
less_security_systems_part_1
Diagram
http://www.mysamplecode.com/20
11/08/rsa-encryption-decryption-
using-bouncy.html
Extensible Authentication Protocol
based Authentication
Long
Acronym
Rivest- Shami-Adleman(RSA)
Authentication
1) EAP-AKA (Authentication
and Key Agreement) for
Type of
authenticatio
n
X.509 digital certificates together
with RSA encryption
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SIM based authentication.
2) EAP-TLS(Transport Layer
Security) for X.509 based
authentication
Referred to Analysis and Literature Review of IEEE 802.16e (Mobile WiMax) Security.pdf
Analysis for Authentication
Based on the table above, Extensible Authentication Protocol is better than Rivest-Shami-
Adleman (RSA) authentication. The reason is EAP does have different type of authentication.
There are EAP-AKA (Authentication and key agreement) for SIM based authentication, and
EAP-TLS (Transport Layer Security) for X.509 based authentication. The drawback of RSA it
just uses two type of keys such as public and private keys. It is not suitable for a company to
secure loads of packet that carry from one station to another base station.
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Authorization
Types of Private Key Management in IEEE 802.16
PKM v1 Differences PKM v2
RSA-based one-way
authentication: the BS
authenticates
Authentication
Mutual authentication:
Supports two authentication
methods: EAP or RSA
Use of three encryption
algorithms:3 DES, RSA and
AES
Key Encryption
New encryption method
implemented: AES with Key
Wrap
nn
Referred to the:
http://etutorials.org/Networking/wimax+technology+broadband+wireless+access/Part+Four+Div
erse+Topics/Chapter+15+Security/15.2+Authentication+and+the+PKM+Protocol/
Based on the table, Private Key Management (PKM) v2 is preferable compare to the Private Key
Management v1. The reason is it has two types of authentication such as EAP and RSA. EAP
also known as Extensible Authentication Protocol (EAP) can be used for company usage such as
secure transaction and subscriptions. The drawback of PKMv1 is it has is using Data Encryption
Standard which easily can be brute force and steal confidential data in the company.
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Encryption
Type of Encryption in IEEE 802.16e
AES
Differences
DES
Sourcehttp://commons.wikimedia.o
rg/wiki/File:AES-ShiftRows.png)
Diagram
Source:(http://www.smartcardbasics
.com/smart-card-security2.html)
Advanced Encryption Standard Long
acronym
Data Encryption Standard
128, 192, 256bits Encryption
Key size
56
128 Blocks size 64
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Analysis
Based on the table above, Advanced Encryption Standard is better than Data Encryption
Standard. AES is having more encryption key size such as 128, 192, or 256 bit encryption key
size compare to the DES.. In the view of block size of DES, it has 64 bits. AES has 128 bits
twice than DES. By using this encryption, we can prevent brute force attack.
Recommendation
AES Encryption is highly recommended for the International e-cash because the this company is
dealing highly risky business and data such as money transactional activities, customers personal
details such as account number and password, and contact number. The good impact of using
this encryption is, this company can prevent their network system from occurring brute force
attack by using 128, 192, 256 bit encryption key. As the encryption key get longer, the intruders
will feel much harder to break into the system. AES can carry out more data compare because it
has DES. The reason is DES has 64 bits which only can carry maximum data is 32GB with a
single key but AES It means than DES with 64 bits maximum can only sent with a single
encryption key is 32GB but AES which has maximum can sent 256 billion gigabytes.
The next security requirement that recommended implementing is Extensible Authentication
Protocol. EAP can be implemented in the two types such as EAP-AKA, and EAP-TLS.EAP-
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Monitoring and Maintenance
Monitoring
Network monitoring refers to the tradition of controlling the operations of a computer network
using specialized software management tools. Network monitoring and maintenance helps
network administrators identify faulty network devices or potential security threat issues. There
are various tools used for monitoring and maintaining the network in International E-Cash.
One of the tools is provided from the PureWave Quantum 6600 base station itself. It is called as
PureView Network Management System (NMS). Carrier grade, comprehensive and scalable
management for the PureWave Quantum Base Stations, PureView NMS can manage and
monitor the performance of thousands base stations. It is specially designed to facilitate large
networks through automatic discovery of network physical and logical topology. Fault
Management, system configuration and provisioning with bulk operations, comprehensive
inventory views and enhanced performance management designed to manage wireless networks.
Technical Feasibility
PureView NMS supports up to 1000 base stations with CPE's on a single server and on a
multiple servers it can go up to 100 000 base stations. The fault management system provides
events and active alarms displays. The alarms can be customized according to users preference
like users can sort and filter alarms, focus on a group or single device, opt for e-mail notification
and export both alarms and events to a CSV file. PureView NMS offers monitoring and
controlling tools such as:
1. Google Maps integration
2. Configuration: Basic or Advanced
3. Bulk Operations
4. Configuration Backup and Restore
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5. Service Flows
6. Discovery: Manual or Automatic
7. NMS user administration: users, profiles, views
8. Server access through web browser or remote client
9. 3GPP standards based
Specifications
NMS Operating System Support NMS Server
- Windows 2008/2012 Server
- Centos/Red Hat Linux Server
NMS Client (remote GUI)
- Windows 2008/2012 Server
- Windows 7/8
-Ubuntu
Database Support MySQL Database
Minimal NMS Server Hardware Requirements Dual core 2.8 GHz , 8 MB Cache
4GB of RAM
10/100/1000 Ethernet Interface
CD-ROM
160 GB Hard Drive
Dedicated Server / VM Support
.
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Economic Feasibility
The term 'economic feasibility' refers to financial viability of a given business venture. This
study is usually very important to carry out before starting out any business since the main aim
of a business is profitability (Ask.Com, 2014). It also involves economic benefit and loss that
may result from the project in a business. Below in the table are the costs of the PureView NMS.
Model Number Product Description of
Product
Type of Product
Detail
Price
096-00501-001 PureView
Network
Management
System Software
PureWave NMS
Software -
required
Software $ 11995 x 2 units
= $ 23990
096-00500-001 PureView
Network
Management
Software Base
Station License
NMS Licence -
per managed
Base Station
License $500 x 2 units
= $ 1000
Recommendation:
Using PureView NMS network administrators are able to monitor their network and investigate
problems faced by the company itself. PureView NMS's integrated map functionality allows
operators to see at a glance where problems may exist with their network operations, and which
customers may be affected. In addition, with the integrated Google Maps, north bound interfaces,
and available API's, PureView NMS can be easily integrated to any operator's network
management strategy supporting the standard. I would recommend International E-Cash this tool
because it best suits the Wimax standard.
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Figure 23 shows the image above shows the Google Maps integration
(Source: http://www.pwnets.com/solutions/network-management-system)
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Figure 24 shows the image above shows the network being deployed in the city.
(Source: http://www.pwnets.com/solutions/network-management-system)
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Figure 25 shows the image above shows the network being configured.
(Source: http://www.pwnets.com/solutions/network-management-system)
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Aeroflex 3250 Spectrum Analyzers
Figure 26 shows Aeroflex Spectrum Analyzer.
(Source:http://www.aeroflex.com/ats/products/product/Spectrum_Analyzers_and_Signal_Analyz
ers/3250_Series_Spectrum_Analyzers~684.html)
Aeroflex's 3250 series has been developed to employs the latest digital processing and RF
technology providing accomplished accuracy, stability and measurement speed. To support the
evolving wireless communication market, the 3250 incorporates a standard 30 MHz bandwidth
digitizer and digital modulation analysis. With its powerful RF performance and advanced
applications the 3250 series is best suited for RF development, design analysis and testing. The
frequencies of 3250 series are below:
Series Frequency
3251 1 kHz - 3 GHz
3252 1 kHz - 8 GHz
3253 1 kHz - 13.2 GHz
3254 1 kHz - 26.5 GHz
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Technical Feasibility
This spectrum analyzer includes the widest 30 MHz bandwidth vector analyzer in its class as
well as generic digital modulation analysis S/W as standard on all modes. The features of this
analyzers are:
1. Low DANL and Phase Noise
2. 30 MHz analysis bandwidth
3. Automatic Power Measurements
4. Phase Noise Measurement
5. Vector Modulation Analysis
6. Full range of wireless measurement options
7. Pre-compliance EMI Receiver and pre-selection filters options
8. Choice of 3GHz or 8GHz tracking generator option
9. DC Power Input and Battery Pack Option
10. Touch Screen Display and Remote Control
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Figure 27 shows the whole summary of Aeroflex Spectrum Analyzer.
(Source: http://www.aeroflex.com/ats/products/prodfiles/brochures/3250_Brochure.pdf)
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Tektronix RSA6000 Spectrum Analyzers
Figure 28 shows Tektronix RSA6000 Spectrum Analyzer.
(Source: http://www.tek.com/spectrum-analyzer/rsa6000)
The high performance RSA6000 Spectrum Analyzer will help network administrator to easily
discover design issues. This analyzer has leading dynamic range and bandwidth combination and
hence coupled with the unique DPX Live RF Spectrum display. It gives immediate confidence in
the stability and instantly displaying a fault when it occurs. The frequencies of RSA6000 series
are below:
Model Capture Bandwidth Frequency Range
RSA6106B 40 MHz - 110 MHz 9 kHz - 6.2 GHz
RSA6114B 40 MHz - 110 MHz 1 Hz - 6.2 GHz
RSA5115A 40 MHz - 110 MHz 9kHz - 14 GHz
RSA5126A 40 MHz - 110 MHz 9kHz - 20 GHz
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Technical Feasibility
The features of these analyzers are:
Features Description
1. High-performance Spectrum Analysis 20 dBm 3rd Order Intercept at 2 GHz,
Typical
Displayed Average Noise Level 151 dBm/Hz at 2 GHz (170 dBm/Hz, Preamp On, typical) enables Low-level
Signal Search
0.5 dB Absolute Amplitude Accuracy
to 3 GHz for High Measurement
Confidence
Fully Preselected and Image Free at All
Times for Maximum Dynamic Range at
Any Acquisition Bandwidth
Fastest High-resolution Sweep Speed:
1 GHz sweep in 10 kHz RBW in less than
1 second
2. Discover DPX Spectrum Processing provides
an Intuitive Understanding of Time-varying
RF Signals with Color-graded Displays
based on Frequency of Occurrence
Revolutionary DPX Displays
Transients with a Minimum Event Duration
of 3.7 s Swept DPX Spectrum enables
Unprecedented Signal Discovery over Full
Instrument Span
3. Trigger Trigger on Frequency Edge or Power
Level Transients with a Minimum Event
Duration of 3.8 s in the Frequency Domain, 9.1 ns in Time Domain
DPX Density Trigger Activated Directly from DPX Display
Time-qualified and Runt Triggers Trap
Elusive Transients
Frequency Mask Trigger Captures Any
Change in Frequency Domain
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4. Capture Up to 1.7 s Acquisitions at 110 MHz
Bandwidth can be Directly Stored as
MATLAB Compatible Files Gap-free Spectrogram Records up to
4444 Days of Spectral Information for
Analysis and Replay
Interfaces with TekConnect Probes for
RF Probing
5. Analyze Time-correlated Multidomain Displays
for Quicker Understanding of Cause and
Effect when Troubleshooting
Power, Spectrum, and Statistics
Measurements help you Characterize
Components and Systems: Channel Power,
ACLR, Power vs. Time, CCDF,
OBW/EBW, and Spur Search
AM/FM/PM Modulation and Audio
Measurements (Opt. 10)
Phase Noise and Jitter Measurements
(Opt. 11)
Settling Time Measurements,
Frequency, and Phase (Opt. 12)
Pulse Measurements (Opt. 20) Over 20 Vector and Scalar Parameters including
Rise Time, Pulse Width, Pulse-to-Pulse
Phase provide Deep Insight into Pulse Train
Behavior
General Purpose Digital Modulation
Analysis (Opt. 21) provides Vector Signal
Analyzer Functionality for Over 20
Modulation Types
Flexible OFDM analysis of 802.11a/g/j
and WiMAX 802.16-2005
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Specifications of the analyzers are as below:
Source: (Tektronix Product Catalog, 2013)
Economic Feasibility
Product Price
Aeroflex 3253 $ 68000
Tektronix Spectrum
Analyzer
$ 82,400
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Comparisons on both Aeroflex and Tektronix Spectrum Analyzer
Aeroflex 3253
Tektronix Spectrum Analyzer
Frequency 1 kHz - 13.2 GHz 9 kHz - 14 GHz
Features - Portability
- High accuracy and
reliability
- Standard 30 MHz I/Q
demodulation bandwidth
- DPX Live RF spectrum
display
-Multi-domain time
correlation
- Automatic pulse
measurement and detection
Price $ 68000 $ 82,400
Source: (Tek.com)
Recommendation
For International E-cash, Tektronix Spectrum Analyzer is most suitable to monitor its WiMAX
network as its frequency range is includes 3.5 GHz. The DPX Live RF spectrum display deters
abnormal signal behavior accurately. This will enable to identify International E-cash's network
abnormalities. Its multi-domain time correlation feature quickens analysis and troubleshooting in
multiple domains. Such a feature prevents intrusion as fast as possible if ever International E-
cash's WiMAX network is exploited.
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Maintenance
Maintenance of the system and hardware equipments is equally necessary in International E-
Cash. There are two types of maintenance which are carried out. They are corrective
maintenance, preventive maintenance, planned based maintenance and condition based
maintenance.
Corrective Maintenance (L.C.Morow 1952)
Corrective maintenance is a one type of a maintenance task performed to identify, isolate
and rectify faulty hardware equipments and system. It also can be defined as the
maintenance which is required due to equipments being failed or worn out to bring it
back to working order. Corrective maintenance may consist of repairs, restorations and or
replacement of equipments. This maintenance would be considered as a regular
inspection in the company and it is always has to be scheduled beforehand. The
employees would realize problems with the system and the hardware equipments and
then report to technicians regarding it. Technicians will rectify the problems and come up
with a solution. It is advised that corrective maintenance should be done every three
months once to avoid problems at all cost.
Preventive Maintenance
Preventive maintenance is a type of planned maintenance task performed to tests,
measurements, adjustments and also part replacements to prevent faults from occurring.
Preventive maintenance can be divided into two such as planned maintenance and
conditioned based maintenance.
Planned maintenances are usually preplanned whereas conditioned based maintenance
are usually performed when after one or more indications shows the hardware equipment
or system is going to fail.(Brian Wood 2003) Technicians do this preventive maintenance
from time to time depending on how severe the problem could bring to the company.
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Conditioned based maintenance is a type of maintenance which needs arises.
(Gopalakrishna Palem 2013) The maintenance is performed after one or more indicators
showing that the equipment is going to fail.
Advantages and Disadvantages of Planned Maintenance
Advantages Disadvantages
Easier for purchasing standby equipments. More expensive due to replacing equipment or
equipment parts.
Costs of repairs are distributed equally. Requires training investment and on-going
labor costs
(Brian Wood 2003)
Advantages and Disadvantages of Condition Based Maintenance
Advantages Disadvantages
Improved system reliability High installation costs for minor equipment
parts
Decreased maintenance cost Unpredictable maintenance because costs are
to be shared equally
Decreased number of maintenance operations
(Gopalakrishna Palem 2013)
Recommendation
I recommend to International E-Cash to use all four types of maintenance in order to have a
successful network.
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Conclusion
Finally, the proposal of International E-Cash wireless network has been prepared. By
implementing the proposal, the headquarter and the branches will be able to communicate via
wireless. By conducting research and preparing the proposal, our network team has gain various
new knowledge on wireless technology. We have learnt the new wireless standards as well as the
numerous new hardware and software that have emerged in the technology market. In the future,
we would recommend including the upcoming 802.16m Wimax standard for any future
International E-Cash branches being opened, as well as incorporating new hardware and
software technology which are currently under development.
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Security.stackexchange.com. 2014. encryption - When do I use NIST AES key wrapping? -
Information Security Stack Exchange. [online] Available at:
http://security.stackexchange.com/questions/40052/when-do-i-use-nist-aes-key-wrapping
[Accessed: 23 Jan 2014].
TheFreeDictionary.com. 2014. Extensible Authentication Protocol - Authentication and Key
Agreement. [online] Available at:
http://acronyms.thefreedictionary.com/Extensible+Authentication+Protocol+-
+Authentication+and+Key+Agreement [Accessed: 23 Jan 2014].
DARINI SHANMUGAVEL (TP025581)
3g.co.uk. 2014. New Series of Spectrum Analyzers from Aeroflex. [online] Available at:
http://www.3g.co.uk/PR/March2009/New_Series_of_Spectrum_Analyzers_from_Aeroflex.ht
ml [Accessed: 24 Jan 2014].
Aeroflex 3253Buy, O. L. 2014. Aeroflex 3253 Sale, Rent, or Lease | 1 kHz - 13.2 GHz
Spectrum Analyzer | sale | rental | lease. [online] Available at:
https://www.ntecusa.com/Test-Equipment-Sales/Spectrum-Analyzers/Aeroflex-
3253/BD99DC8CC0860F36825B75E7F63DAC16 [Accessed: 24 Jan 2014].
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http://www.aeroflex.com/ats/products/product/Spectrum_Analyzers_and_Signal_Analyzers/3
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at:
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html [Accessed: 24 Jan 2014].
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Anonymous. 2014. [online] Available at: http://www.tek.com/spectrum-analyzer/rsa6000
[Accessed: 24 Jan 2014].
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RSA6120A | used-line.com. [online] Available at: http://www.used-line.com/list-spectrum-
analyzer/tektronix/tektronix-rsa6120a?dealer=415A0464 [Accessed: 24 Jan 2014].
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Gantt Chart
Mobile Wireless Technology (MWT) 2014
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Workload Matrix
Name Task/Responsibility Signature
Darini Shanmugavel
(TP025581)
Monitoring and Maintenance
considerations
(Part D)
Rarshvindran a/l Maslamani
(TP026565)
Site survey and other related
considerations for deploying
Wireless solutions
(Part A)
Vetrikumar Manugaran
(TP033342)
Security implementations
requirements
(Part C)
Mervyn Anthony Francis
(TP029324)
Hardware and Software
requirements, considerations,
and justifications
(Part B)
Mobile Wireless Technology (MWT) 2014
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Marking Scheme
INDIVIDUAL COMPONENT (70%) GROUP
COMPONENT
(30%)
Pre
senta
tion (
10)
Rep
ort
conte
nt
(10)
Dia
gra
ms
and/o
r F
igure
s
(20)
Anal
yti
cal
and C
riti
cal
Thin
kin
g (
20)
Pro
gre
ss R
eport
(5
)
Work
load
Mat
rix (
5)
Ind
ivid
ual
Tota
l (7
0)
Ass
um
pti
ons
(5)
Docu
men
tati
on (
10)
Ref
eren
cing (
15)
Gro
up
Tota
l (3
0)
Gra
nd
Tota
l (1
00)
Darini Shanmugavel
Rarshvindran a/l
Maslamani
Vetrikumar a/l
Manugaran
Mervyn Anthony
Francis