Wireless Networks - Intranet DEIBhome.deib.polimi.it/capone/wn/1-EN-Introduction.pdf · o Mentum...

Politecnico di MilanoFacoltà di Ingegneria dell’Informazione

Wireless Networks

Prof. Antonio Capone

Politecnico di MilanoFacoltà di Ingegneria dell’Informazione

1 – Introduction

Wireless NetworksProf. Antonio Capone

Teacher

o Prof. Antonio Caponeo Office:

n Dip. di Elettronica e Informazionen 3rd floorn Room 335

o Tel: (02 2399) 3449o E-mail: [email protected] Web page: http://home.dei.polimi.it/capone/

o Office hours:n Tuesday 14.00-15.30

A. Capone: Wireless Networks 3

Course organizationo Wireless Networks is an integrated course (10

credits) that includes two courses of 5 credits:n Wireless Internet (WI)n Mobile Radio Networks (MRN)

o The two courses will run in parallel to avoid problems with the lecture schedule:

o 9 hours in the weekly schedule to be split among the two courses: n Tuesday 15:15-18:15 S.1.6 (MRN)n Wednesday 8:15-10:15 D0.3 (WI)n Thursday 8:15-10:15 L.26.13 (WI)n Friday 10:15-12:15 L.26.01 (MRN)n Note that the first part of the course is shared

among MRN and WIA. Capone: Wireless Networks 4


Class notes and bookso Papers and other material available

on the course web pageo Course slideso Links to material available on the

web pages of the two courses


Course home pagehttp://www.antlab.polimi.it/teaching-capone/wireless-networks

Goal of the course:Mobile Radio Networks

o Provide you the knowledge on the technology and network protocols of mobile radio networks, as well as on design and dimensioning methodology


o Mobile radio networksn Cellular architecturesn Radio planning and

networks designn Signaling and controln GSMS/GPRSn UMTSn LTE


Goal of the course:Wireless Internet

o Distributed wireless networks for Internet accessn Technologies and protocols for wireless

access networks (WiFi, WiMax, Bluetooth, Zigbee)

n Methodologies for the analysis of mechanisms and protocols for the access to wireless medium

n Distributed algorithms for the control and management of wireless networks

n Architectures and protocols for wireless multi-hop networks (ad hoc and sensor networks)

n Hands-on project on ad hoc networks

Pre-requisites

o Mobile radio networks:Communication networks basics, TCP/IP protocols, queuing theory basics (*), optimization basics (*).

o Wireless Internet:Communication networks basics, TCP/IP protocols, queuing theory basics (*).



Examso Exams are written and oralo In same cases (typically with a written exams

score between 21 and 27) the oral exam can be skipped (it's my decision you need to check on the pdf file if a final mark is proposed without oral).

o Also students can ask for a oral exam (but written exam score must be >= 15)

o Notes on the organization:n Written exam: same dates same time same room for all

courses


Examso MRN:

n Written exam: up to 30 points (duration 1:45)n Additional topic: up to 2 pointsn Oral exam: +/- 4 points

o WI:n Written exam: up to 30 points (duration 1:45)n Additional topic: up to 2 pointsn Oral exam: +/- 4 points

o WN:n Written exam: up to 30points (duration 2:15h)n Additional topic: up to 2 pointsn Oral exam: +/- 4 points

Course overview


Phones …

13A. Capone: Wireless Networks

Mobile phones


WiFi everywhere


Cellular subscribers


Mobile vs fixed vs internet

Per 100 inhabitantso 96.8 mobile subscribers o 43.4 internet users o 10.8 fixed-broadbando 47.2 mobile-broadband

Source: ITUData: 2015


Mobile subscribers by country


Source: World BankData: 2016

Network planning tools

19

Main Planning Tools:

o Aircom Asseto Mentum Planeto Atoll FORSKo ATDIo WinPropo EDX Signal Proo CelPlano Siradelo PathlossMain Optimization

Engineso Actixo Capesso

A. Capone: Wireless Networks

Network management & control


Course program: MRNo Basic concepts

n Characterization of the mobile radio channeln Digital transmission on the wireless channeln Voice coding

o Introduction to mobile radio networksn Network architecture and functional

elementsn Multiple access techniques for the radio

channeln The concept of cellular coveragen The concept of frequency reusen Mobility management: cell selection,

location management, handoverA. Capone: Wireless Networks 21

Course program: MRN

o Capacity and radio planningn Mathematical models and algorithms for

coverage optimizationn Mathematical models and algorithms for

the static frequency assignmentn Dynamic channel allocation techniques


Course program: MRN

o Performance analysisn Models for the capacity estimation of

CDMA systemsn Teletraffic models for the performance

evaluation at call leveln Models for the dimensioning of cells and

location areas


Course program: MRN

o GSMn Architecture and interfacesn Physical and logical channelsn Transport in the fixed networkn Mobility management: localization and

handover n Telephone signalingn Signaling network architecture, signaling

protocols, network databases, call management procedures, mobility management procedures


Course program: MRN

o GPRSn Network architecture and protocols n Radio interfacen Medium Access Control (MAC)n Mobility managementn Interconnection to public and private IP

networks


Course program: MRN

o UMTSn Radio accessn Spreading and coding procedures for the

W-CDMAn Signaling and transport channelsn Power control proceduresn High Speed Packet data servicesn Core network


Course program: MRN

o Long Term Evolution (LTE)n System architecturen Radio interface (LTE)n Core network (EPC)n VOIP over LTE



Course program: WIo Technologies of wireless networks

n Wi-Fi (Architecture and protocols of WLAN, IEEE 802.11 specifications, multiple access, frame format, distribution system, mobility management, quality of service, mesh topologies),

n Bluetooth (Bluetooth specifications, picocells and scatternet, channel access, station states, network formation and signaling),

n WMAN (IEEE 802.16 – WiMax standards, network architecture, Point-To-Multipoint, MESH, channel access and scheduling)

n Zigbee (IEEE 802.15.4 and Zigbee alliance specifications, star-tree-mesh topologies, multiple access schemes to the wireless channel),


Course program: WI

o Network and transport layer. n Mechanisms for the mobility management at

network layer (Mobile IP, micro-mobility, application layer mobility).

n TCP over wireless (Management of channel impairments, end-to-end approaches, indirect TCP, link layer approaches, analytical models).


Course program: WIo Multiple access to the wireless channel

(models for the analysis) n Aloha protocol (infinite population model, finite

population model, single-buffer model, stabilization algorithms)

n CSMA (Carrier Sense Multiple Access), CSMA/CD (CSMA with Collision Detect), CSMA/CA (CSMA with Collision Avoidance),

n Polling schemes (models for calculating the waiting time, exhaustive service, gated service, limited service and round robin)

n Scheduling schemes for the radio access (signaling the queue status, channel state dependent scheduling, multi-channel scheduling).


Course program: WIo Ad hoc networks

n Basics of ad-hoc and MESH networks. n Medium access control schemes for ad hoc

networksn Routing for ad-hoc networks (proactive routing,

reactive routing, geographic routing, hybrid schemes).

n Broadcast and multicast in ad-hoc networks


Course program: WIo Sensor networks (basic concepts only)

n Application scenarios and differences with ad hoc networks

n Multiple access schemes and activity period management

n Energy efficient routingn Planning of sensor networks


Course programo Hand-on activities (prof.

Ilario Filippini)n Introduction to Netkitn Basic Topicsn Routing (OLSR e AODV) n Filtering and Shaping

(iptables and tc) n Projects

Netkit

Wireless “power”


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