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Windows Networking and Device Technologies January 27, 2005 IEEE 802.11 Technologies Amer Hassan, Architect

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Presentation on theme: "Windows Networking and Device Technologies January 27, 2005 IEEE 802.11 Technologies Amer Hassan, Architect"— Presentation transcript:

1 Windows Networking and Device Technologies January 27, 2005 IEEE Technologies Amer Hassan, Architect

2 2 Windows Networking and Device Technologies January 27, 2005

3 3 Windows Networking and Device Technologies January 27, 2005 The Vision – Dream Network “Pervasive Collaborative Computing” Faster and More Pervasive More Secure Ease At Home More Deployable and Manageable

4 Windows Networking and Device Technologies January 27, 2005 Video

5 Windows Networking and Device Technologies January 27, Wireless Standards IEEE UWB, Bluetooth Wi-Media, BTSIG, MBOA WAN MAN LAN PAN ETSI HiperPAN IEEE Wi-Fi Alliance ETSI-BRAN HiperLAN2 IEEE d WiMAX ETSI HiperMAN & HIPERACCESS IEEE IEEE e 3GPP (GPRS/UMTS) 3GPP2 (1X--/CDMA2000) GSMA, OMA Sensors IEEE (Zigbee Alliance) RFID (AutoID Center) IEEE , IEEE RAN IEEE

6 6 Windows Networking and Device Technologies January 27, Growing Standards a 11b 11c 11d 11e 11g 11h 11i 11j 11k 11n 11ma 11f 11u.11s,.11v,.11T,.11 r,.11p

7 7 Windows Networking and Device Technologies January 27, 2005 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 technical enhancements - WMM,.11i,.11k,.11r Security solutions acceptable (WPA2, PEAPv2); security deployment issues being addressed Hotspot roaming agreements identified as critical to carriers & ISPs Standardization started for n with 2 strong proposals

8 8 Windows Networking and Device Technologies January 27, 2005 What is the situation? Have not Deployed Wi-FiHave Deployed Wi-Fi Unable to justify ROI of a new infrastructure Justified ROI Saves on infrastructure & real estate Improves productivity in manufacture plants Allows flexible employee work practices Concerned security is not adequate Compensates for limits of current technology Regulates access via VPN, looking for WPA2 Deployed secure technology EAP-TLS,.1X Concerned standards unstable (11a, 11b, 11g…) Deployed what meets current needs Planning to upgrade to.11a then.11 n Concerned about managing another network & provisioning users Agrees management & diagnostic tools lacking Deployments are tightly controlled Not a show stopper compared to ROI Waiting for the benefits to outweigh the risks Looking forward to making strategic investments VoIP & video streaming New customer services & products

9 9 Windows Networking and Device Technologies January 27, 2005 TechnologyWi-FiWiMAXUWBBluetooth3GPP/2RFIDZigbee LAN for Enterprise LAN for Home Home multiple A/V distribution -(audio streaming) --- Backhauling and last mile Propriet ary sol’n Wide Area Mobility Cable/device Replacement ---- Mesh Networking Enterp/ Home/N Neighbor- hood Mesh Home Mesh ---- Sensor Networking Inventory Control ---- Auto PC-- Potential Wi-Fi Scenarios

10 Windows Networking and Device Technologies January 27, n and all that jazz…

11 11 Windows Networking and Device Technologies January 27, 2005 What do Home users want? Range: reliable wireless networking throughout the home High fidelity A/V: good Quality of Service for high quality audio and video Throughput! HDTV-720 in the 16 Mbps (MPEG2) HDTV-1080 in 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

12 Windows Networking and Device Technologies January 27, Wireless outsold wired home networking gear for the first time in 2004 US Home Networking Purchases (in millions) Source: JupiterResearch Home Networking Model, 8/04 (US Only)

13 13 Windows Networking and Device Technologies January 27, 2005 What do service providers need? Highest possible consumer satisfaction… consumers will blame the Service Provider QoS is primary requirement – video and high throughput (mobile) data sessions Management capability to the devices Secure mobility support: Handoff & Mesh High rate for outdoor to indoor 150m operation

14 14 Windows Networking and Device Technologies January 27, 2005 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

15 15 Windows Networking and Device Technologies January 27, 2005 Applications and target marketsTransmission characteristics ApplicationExamplesTypeRateDuration/ volume Audio/Video 1HDTV and DV viewing for commercial & domestics use Constant (low jitter) 27 MbpsHours Audio/Video 2SDTV viewing for commercial and domestic use Constant (low jitter) 6 MbpsHours Audio/Video 3Video conferencing with VoIPConstant (low jitter) 2 Mbos< 1 hr Interactive 1Interactive gaming, Internet Browsing, Variable2 Mbps1 hr Interactive 2VoIP, Internet gamingConstant with intervals.2 MB/s1 min – 1 hr Bulk transferFlash downloads file transfer, media transfer Variable30 Mbps10 MB – 10 GB General applications set forth by the Wi-Fi Alliance

16 16 Windows Networking and Device Technologies January 27, 2005 IEEE 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 physical layers (PHY) and the Medium Access Control Layer (MAC) are allowed with baseline & its amendments to support high throughput Evaluation metrics: throughput, range, network capacity, (peak and average power consumption), spectral flexibility, backward compatibility, and coexistence (3 channel models)

17 17 Windows Networking and Device Technologies January 27, 2005 EnvironmentSetting ResidentialIntra-room, Room to room, Indoor to outdoor, Large multi- family dwelling Small/medium officeEnclosed office, meeting room, classroom, bus, train Large officeCubes, offices, multistory office space Large space: indoor/outdoorHotspots: airport, library, Convention Center, factory, hospital Channel models

18 18 Windows Networking and Device Technologies January 27, 2005 RequirementDescription HT rate supported in 20MHz channel at least one mode of operation supports 100Mbps throughput at the top of the MAC SAP in a 20 MHz channel Works in the 5 GHz bandsProtocol supports 5GHz bands (including those supported by.11a).11a backwards compatibilitySome of the modes of operation defined in the proposal should be backwards compatible with.11a.11g backwards compatibilityin 2.4 GHz, some of the modes of operation defined in the proposal should be backwards compatible with.11g Functional requirements of.11n

19 19 Windows Networking and Device Technologies January 27, 2005 RequirementDescription.11e QoS supportThe proposal must permit implementation of the e options within a.11n STA Spectral EfficiencyThe highest throughput mode of the proposal should achieve a spectral efficiency of at least 3 bps/Hz for the PSDU Control of support for legacy STA from.11n AP A.11n AP can be configured to reject or accept associations from legacy STA because they are legacy STA Functional requirements of.11n (cont)

20 Windows Networking and Device Technologies – Microsoft Confidential AmerH January 20, Link Level Throughput & Range Range Throughput Business Infotainment Services throughput required in typical hotspot settings

21 21 Windows Networking and Device Technologies January 27, 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

22 22 Windows Networking and Device Technologies January 27, 2005 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

23 23 Windows Networking and Device Technologies January 27, 2005 Key PointsTGn SYNCWWISE MembersAgere, Atheros Cisco, Intel, Mitsubishi Philips, Sony Toshiba, Qualcom, Nortel, Samsung, Marvel, Panasonic, Tohoku Univ, Nokia, Infocom Research, Sanyo Broadcom, TI, Airgo Networks, Conexant, Buffalo, Ralink, ETRI, HNS, Realtek, STM, TrellisWare, Winbond Electronics UDP data rate200+ Mbps/40 MHz100+ Mbps/20 MHz MAC basic technologyaccommodate both EDCA and HCCA Packet sizes 0 to 64KB PSDUs IEEE n basics: 2 main proposals (TGn SYNC & WWISE)

24 24 Windows Networking and Device Technologies January 27, 2005 Throughput enhancement FeaturesTGn SyncWWISE Bandwidth(M) 20MHz mode (M) 40MHz, whenever regulatory domain permits this extension (M) 20 MHz mode (O) 40 MHz mode MIMO-OFDM-SDM(M) 2 spatial 20MHz mode (M) 2 spatial 20MHz mode Higher code rate (R)(M) R= ½, 2/3, ¾, 7/8(M) R= ½, 2/3, ¾, 5/6 Regular coding scheme(M) Convolutional code Advanced Coding scheme (O) LDPC Space Time Block Code(N)(O) (M) Mandatory (O) Optional (N) Not available

25 Windows Networking and Device Technologies – Microsoft Confidential AmerH January 20, Preamble + PLCP Header A-PSDU Perform aggregation Legacy Burst Preamble PLCP header MPDU Header MPDU Payload FCS Preamble PLCP header MPDU Header MPDU Payload FCS Preamble PLCP header MPDU Header MPDU Payload FCS 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

26 26 Windows Networking and Device Technologies January 27, 2005 TGn SyncWWiSE New control framesYN New data frameYN New mgt frameYY M(P)SDU Aggregation YY A-MSDU aggregationNY Aggregation

27 27 Windows Networking and Device Technologies January 27, 2005 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!

28 28 Windows Networking and Device Technologies January 27, 2005 Windows Wireless Strategy: Summary TechnologyCY04-CY06 Investments Challenges WPAN: (UWB), Bluetooth BT PAN module UWB Strategic exploration Few BT PAN products No IP over UWB spec WW regulations for UWB WLAN: Security WPS Extensibility Diagnostics Group Policy Fragmented user experience Poor penetration in enterprise Multiple auth protocols Several.11n proposals WiMAX: Strategic exploration Extensibility e roadmap

29 29 Windows Networking and Device Technologies January 27, 2005 Call to action – drive best user experience! Usability: demand interoperability, and improved UIs for wireless technologies Security: demand Standards based security with 802.1X, PEAP & PEAP-SIM, and WPA1&2 Availability & coexistence: share spectrum with minimum interference

30 Windows Networking and Device Technologies January 27, 2005 Backup slides: Wi-Fi Alliance and Certification

31 31 Windows Networking and Device Technologies January 27, 2005 Wi-Fi Alliance Mission Statement and services technologyCertify the interoperability of products and services based on IEEE technology Grow the global market platforms, and applicationsGrow the global market for Wi-Fi® CERTIFIED products and services across all market segments, platforms, and applications

32 32 Windows Networking and Device Technologies January 27, 2005 New Certificate & Logo Certificate inside packaging (optional) Logo on product packaging (mandatory) Helps retailers and consumers

33 Windows Networking and Device Technologies January 27, Wi-Fi Alliance Roadmap Baseline Security QoS Applications Certification Program Releases IEEE Standard Releases Q1 Q2 Q4 Q e WMM Scheduled Access Public Access CE Phase Extended EAP h+d Simple Config Voice/Wi-Fi WCC j k CE Phase1 WMM Power Save

34 34 Windows Networking and Device Technologies January 27, 2005 Worldwide Wi-Fi Semiconductor Revenues by Application, ($M) Source: IDC brief: Worldwide WLAN Semiconductor Forecast and Analysis, 2004 – 2008.

35 35 Windows Networking and Device Technologies January 27, 2005 Worldwide WLAN Semiconductor Revenues by Standard, ($M) Source: IDC brief: Worldwide WLAN Semiconductor Forecast and Analysis, 2004 – 2008.

36 36 Windows Networking and Device Technologies January 27, 2005 WLAN Chipset Pricing by Standard* Source: IDC brief: Worldwide WLAN Semiconductor Forecast and Analysis, 2004 – *Chart is estimate based on data in IDC Brief

37 37 Windows Networking and Device Technologies January 27, WLAN Semiconductor Revenues in Consumer Devices by Application (n = $611 M) Source: IDC brief: Worldwide WLAN Semiconductor Forecast and Analysis, 2004 – 2008.


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