Wireless Technologies and

8/6/2019 Wireless Technologies and

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Windows Networking and Device Technologies January 27, 2005

IEEE 802.11 Technologies

Amer Hassan, Architect

[email protected]
mailto:[email protected]:[email protected]


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2Windows Networking and Device Technologies January 27, 2005


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The Vision Dream Network

Pervasive Collaborative Computing

Faster andMore

Pervasive

MoreSecure

EaseAt Home

MoreDeployable

and Manageable
http://images.google.com/imgres?imgurl=https://media5.magma.ca/www.patentrust.com/test_site/images/security-v1.gif&imgrefurl=https://media5.magma.ca/www.patentrust.com/test_site/images/&h=260&w=231&sz=37&tbnid=tRXap7KYzQ8J:&tbnh=106&tbnw=95&prev=/images%3Fq%3Dsecurity%26hl%3Den%26lr%3D%26ie%3DUTF-8%26oe%3DUTF-8http://images.google.com/imgres?imgurl=www.motorsports.com.cn/f1/media/allphoto1/ferrari.jpg&imgrefurl=http://www.motorsports.com.cn/f1/media/allphoto1.htm&h=600&w=800&sz=86&tbnid=BcGzhYSdjMAJ:&tbnh=106&tbnw=141&prev=/images%3Fq%3Dferrari%26start%3D40%26hl%3Den%26lr%3D%26ie%3DUTF-8%26oe%3DUTF-8%26sa%3DN


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Video


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5


Wireless Standards

IEEE 802.15.3

UWB, Bluetooth

Wi-Media,

BTSIG, MBOA

WAN

MAN

LAN

PAN ETSIHiperPAN

IEEE 802.11Wi-Fi Alliance

ETSI-BRANHiperLAN2

IEEE 802.16d

WiMAX

ETSI HiperMAN &

HIPERACCESS

IEEE 802.20IEEE 802.16e

3GPP (GPRS/UMTS)

3GPP2 (1X--/CDMA2000)

GSMA, OMA

SensorsIEEE 802.15.4(Zigbee Alliance)

RFID

(AutoID Center)

IEEE802.21,IEEE8

02. 18802.1

9

RANIEEE 802.22


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1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007

Growing 802.11 Standards

802.

11802.11

11a11a

11b11b

11c11c11d11d

11e11e

11g11g

11h11h

11i11i

11j11j

11k11k

11n11n11ma11ma

11f11f

11u11u

.11s, .11v, .11T,.11 r, .11p.11s, .11v, .11T,.11 r, .11p


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Wi-Fi Industry Status Increased interest in cellular/Wi-Fi handsets.

Choice split between .11a or .11g Price gap for .11g and .11a/g is decreasing

rapidly; .11b only devices on steep decline

Voice over Wi-Fi becoming reality with technicalenhancements - WMM, .11i, .11k, .11r

Security solutions acceptable (WPA2, PEAPv2);security deployment issues being addressed

Hotspot roaming agreements identified as criticalto carriers & ISPs

Standardization started for 802.11n with 2 strongproposals


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What is the situation?Have not Deployed Wi-Fi Have Deployed Wi-Fi

Unable to justify ROI of a newinfrastructure

Justified ROI

Saves on infrastructure & real estate

Improves productivity in manufacture plants

Allows flexible employee work practices

Concerned 802.11 security is notadequate

Compensates for limits of current technology

Regulates access via VPN, looking for WPA2

Deployed secure technology EAP-TLS, .1X

Concerned 802.11 standards unstable(11a, 11b, 11g)

Deployed what meets current needs

Planning to upgrade to .11a then .11 n

Concerned about managing anothernetwork & provisioning users

Agrees management & diagnostic tools lacking

Deployments are tightly controlled

Not a show stopper compared to ROI

Waiting for the benefits to outweighthe risks

Looking forward to making strategic investments

VoIP & video streaming

New customer services & products



Technology Wi-Fi WiMAX UWB Bluetooth 3GPP/2 RFID Zigbee

LAN forEnterprise

- - - - - -

LAN for Home - - - - - -

Home multipleA/Vdistribution

- (audiostreaming)

- - -

Backhaulingand last mile

Proprietarysoln

- - - - -

Wide AreaMobility

- - - - -

Cable/deviceReplacement

- - - -

Mesh

Networking

Enterp/Ho

me/N

Neighbor-

hood Mesh

Home Mesh - - - -

SensorNetworking

- - - - - -

InventoryControl

- - - -

Auto PC - -

Potential Wi-Fi Scenarios



802.11 n and all that jazz



What do Home users want? Range: reliable wireless networking throughout the home

High fidelity A/V: good Quality of Service for high qualityaudio and video

Throughput!

HDTV-720 in the US @ 16 Mbps (MPEG2) HDTV-1080 in Japan @ 20 Mbps (MPEG2) Next generation Media Center will support 2 concurrent video

streaming, and by .11n ratification 4 concurrent streaming For 3 streams in the home, with picture-in-picture, and Internet

access, 100Mbps UDP level throughput is easily consumed


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12


Wireless outsold wired home networking gear for

the first time in 2004

2.8 2.7 2.51.7 1.2 0.7

2.64.6

6.9 911.3 12.3

13.6

0.9

14.3

10.7

12.5

13.2

9.3

5.4

7.3

0

2

4

6

8

10

12

14

16

2003 2004 2005 2006 2007 2008 2009

Wired Only Wireless Total PurchaseUSHom

eNetworkin

gPurch

ases

(in millions)

Source: JupiterResearch Home Networking Model, 8/04 (US Only)



What do service providers need?

Highest possible consumer satisfactionconsumers will blame the Service Provider

QoS is primary requirement video and highthroughput (mobile) data sessions

Management capability to the devices

Secure mobility support: Handoff & Mesh

High rate for outdoor to indoor 150m operation



What would make IT Pro excited?

High return on investment

High level of security

Ease of deployment

Manageability of clients and APs

Diagnosis

Highly available networking



Applications and target markets Transmission characteristics

Application Examples Type Rate Duration/volume

Audio/Video 1 HDTV and DV viewing forcommercial & domestics use

Constant(low jitter)

27 Mbps Hours

Audio/Video 2 SDTV viewing for commercial anddomestic use

Constant(low jitter)

6 Mbps Hours

Audio/Video 3 Video conferencing with VoIP Constant(low jitter)

2 Mbos < 1 hr

Interactive 1 Interactive gaming, InternetBrowsing, Email

Variable 2 Mbps 1 hr

Interactive 2 VoIP, Internet gaming Constant

withintervals

.2 MB/s 1 min 1 hr

Bulk transfer Flash downloads file transfer, mediatransfer

Variable 30 Mbps 10 MB 10GB

General applications set forth by the Wi-Fi Alliance



IEEE 802.11 Initiative: start of .11n Develop next generation Wi-Fi capable of much higher

throughputs, with a maximum throughput of at least 100Mbps,as measured at the MAC data service access point (SAP)

Modifications to both the 802.11 physical layers (PHY) and the802.11 Medium Access Control Layer (MAC) are allowed with

baseline 802.11 & its amendments to support high throughput

Evaluation metrics: throughput, range, network capacity, (peakand average power consumption), spectral flexibility, backwardcompatibility, and coexistence (3 channel models)



Environment Setting

Residential Intra-room, Room to room, Indoorto outdoor, Large multi-familydwelling

Small/medium office Enclosed office, meeting room,

classroom, bus, train

Large office Cubes, offices, multistory officespace

Large space: indoor/outdoor Hotspots: airport, library,Convention Center, factory,hospital

Channel models


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Requirement Description

HT rate supported in 20MHzchannel

at least one mode of operationsupports 100Mbps throughput atthe top of the MAC SAP in a 20 MHzchannel

Works in the 5 GHz bands Protocol supports 5GHz bands

(including those supported by .11a)

.11a backwards compatibility Some of the modes of operationdefined in the proposal should bebackwards compatible with .11a

.11g backwards compatibility in 2.4 GHz, some of the modes ofoperation defined in the proposalshould be backwards compatiblewith .11g

Functional requirements of .11n


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Requirement Description.11e QoS support The proposal must permit

implementation of the 802.11eoptions within a .11n STA

Spectral Efficiency The highest throughput mode ofthe proposal should achieve aspectral efficiency of at least 3bps/Hz for the PSDU

Control of support for legacy STAfrom .11n AP

A .11n AP can be configured toreject or accept associations fromlegacy STA because they arelegacy STA

Functional requirements of .11n (cont)


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20

Windows Networking and Device Technologies Microsoft Confidential AmerH January 20, 2005

Link Level Throughput & Range

Range

80

15020

25

Throughput

Business

Infotainment

Services

throughput required in typical hotspot settings


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.11 n proposals

32 proposals, 4 complete (Sept 04, Nov 04) TGn Sync WWISE

Motorola/Mitsubishi

Qualcom

Down select and merger (Jan 05) TGn Sync

WWISE

Further down select (March 05)

Qualcom and Mitsubishi merged with TGn Sync


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Roadmap Activity started in Q4 02

Par/5 Criteria: March 03 Functional Requirements: Nov 03

Usage Models: May 04

Comparison Criteria: May 04 Proposals: Sept 04

convergence, plug fests, beta,

Ratification: Sept 06 Wi-Fi Certification: Sept 06


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Key Points TGn SYNC WWISE

Members Agere, AtherosCisco, Intel, MitsubishiPhilips, SonyToshiba, Qualcom,Nortel, Samsung,Marvel, Panasonic,Tohoku Univ, Nokia,

Infocom Research, Sanyo

Broadcom, TI,Airgo Networks,Conexant, Buffalo,Ralink, ETRI, HNS,Realtek, STM,TrellisWare, WinbondElectronics

UDP data rate 200+ Mbps/40 MHz 100+ Mbps/20 MHz

MAC basic technology accommodate both

EDCA and HCCA

accommodate both

EDCA and HCCAPacket sizes 0 to 64KB PSDUs 0 to 64KB PSDUs

IEEE 802.11n basics: 2 main proposals (TGn SYNC & WWISE)


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Throughput enhancementFeatures TGn Sync WWISE

Bandwidth (M) 20MHz mode(M) 40MHz, whenever regulatorydomain permits this extension

(M) 20 MHz mode(O) 40 MHz mode

MIMO-OFDM-SDM (M) 2 spatial streams@ 20MHz mode

(M) 2 spatial streams@ 20MHz mode

Higher code rate (R) (M) R= , 2/3, , 7/8 (M) R= , 2/3, , 5/6

Regular coding scheme (M) Convolutional code (M) Convolutional code

Advanced Coding scheme (O) LDPC (O) LDPC

Space Time Block Code (N) (O)

(M) Mandatory (O) Optional (N) Not available


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Windows Networking and Device Technologies Microsoft Confidential AmerH January 20, 2005

Preamb

le

+PLCP

Header

A-PSDU

Perform

aggregation

Legacy Burst

Preamble

P

LCP

h

eader

MPDU

Header

MPDU

Payload

F

CS Preamble

PLCP

header

MPDU

Header

MPDU

Payload

F

CSPreamble

P

LCP

h

eader

MPDU

Header

MPDU

Payload

F

CS

SIFS SIFS

PSDU1 PSDU2 PSDU3

Preamble + PLCP headers + SIFS will be saved

Both proposals do some form of aggregation

Some overhead will be induced to identify each MPDU


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TGn Sync WWiSE

New control frames Y N

New data frame Y N

New mgt frame Y Y

M(P)SDUAggregation

Y Y

A-MSDU aggregation N Y

Aggregation


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Wish list!

Coexistence through Spectrum sharing Use of DFS, TPC, LBT,

Turbo coding Low gate count (200K), but IPR

High gate count (800K), but no IPR

Space-time block coding (Alamouti) Provides great performance

Flexible architecture for closed loop Keep it simple!

i d i l S S


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Windows Wireless Strategy: Summary

Technology CY04-CY06

Investments

Challenges

WPAN:

802.15 (UWB),Bluetooth

BT PAN module

UWB Strategic exploration

Few BT PAN products

No IP over UWB spec

WW regulations for UWB

WLAN:

802.11

Security WPS Extensibility Diagnostics Group Policy

Fragmented userexperience

Poor penetration inenterprise

Multiple auth protocols

Several .11n proposals

WiMAX:

802.16

Strategic exploration

Extensibility

802.16e roadmap


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Call to action drive best user experience!

Usability: demand interoperability, andimproved UIs for wireless technologies

Security: demand Standards based securitywith 802.1X, PEAP & PEAP-SIM, and WPA1&2

Availability & coexistence: share spectrum withminimum interference

[email protected]


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Backup slides:Wi-Fi Alliance and Certification


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Wi-Fi Alliance Mission Statement

Certify the interoperability of productsand servicesand services based on IEEE 802.11technologytechnology

Grow the global marketGrow the global market for Wi-FiCERTIFIED products and services across

all market segments, platforms, andplatforms, andapplicationsapplications


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New Certificate & Logo

Certificate inside packaging (optional)

Logo on product

packaging (mandatory) Helps retailers and

consumers


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Wi-Fi Alliance Roadmap

Baseline

Security

QoS

Applications

Certification Program Releases

IEEE Standard Releases

Q1 Q2 Q4Q32005

802.11e

WMM

Scheduled Access

Public Access CE

Phase2

2004

Extended EAP

2006

802.11h+d

SimpleConfig

Voice/Wi-FiWCC

802.11j 802.11k

CE

Phase1

WMM Power Save

Worldwide Wi-Fi Semiconductor Revenues by


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Worldwide Wi-Fi Semiconductor Revenues byApplication, 2003 - 2008 ($M)

0

500

1000

1500

2000

2500

3000

3500

2003 2004 2005 2006 2007 2008

Chip Inventory

AccessPoints/Gateways/Bridges

Mobile PC

Desktop PC

Consumer Devices

Mobile Devices

Printers/MFPs

Aftermarket USB

Aftermarket PCI

Aftermarket NIC

Source: IDC brief: Worldwide WLAN Semiconductor

Forecast and Analysis, 2004 2008.

Worldwide WLAN Semiconductor Revenues by


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Worldwide WLAN Semiconductor Revenues byStandard, 2003 - 2008 ($M)

0

500

1000

1500

2000

2500

3000

3500

2003 2004 2005 2006 2007 2008

Dual Band (802.11a+b+g)

802.11a

802.11g

802.11b




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WLAN Chipset Pricing by Standard*

WLAN Chipset Pricing by Standard

0

5

10

15

20

25

30

2003 2004 2005 2006 2007 2008

802.11b

802.11g

802.11a

Dual Band

(802.11a+b+g)



*Chart is estimate based on data in IDC Brief

2008 WLAN Semiconductor Revenues in Consumer


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2008 WLAN Semiconductor Revenues in ConsumerDevices by Application (n = $611 M)

1.3%10.0%

11.5%

12.1%65.1%

Gaming

Consoles/Handhelds

Digital TV

DVD Players

Digital

Cameras/Camcorders

Compressed Audio Players



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