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Overview of IEEE Wireless Network Standards

Overview of IEEE Wireless Network Standards. Convergent Wireless Network Standards – IEEE 802 Series. Wireless Personal Area Network (WPAN) 802.15 (since 1999) Wireless Local Area Netwrok (WLAN) IEEE 802.11 (since 1990) Wireless Metropolitan Network (WMAN) IEEE 802.16 (since 2001)

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Overview of IEEE Wireless Network Standards

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  1. Overview of IEEE Wireless Network Standards

  2. Convergent Wireless Network Standards – IEEE 802 Series • Wireless Personal Area Network (WPAN) • 802.15 (since 1999) • Wireless Local Area Netwrok (WLAN) • IEEE 802.11 (since 1990) • Wireless Metropolitan Network (WMAN) • IEEE 802.16 (since 2001) • Wireless Wide Area Network (WWAN) • IEEE 802.20 (since 2002) • Wireless Regional Area Network (WRAN) • IEEE 802.22 (since 2004) • Media Independent Handover Services • IEEE 802.21

  3. Relationship

  4. IEEE Project 802 Standard

  5. Wireless Markets TEXT GRAPHICS INTERNET HI-FI AUDIO STREAMING VIDEO DIGITAL VIDEO MULTI-CHANNEL VIDEO LAN 802.11b 802.11a/HL2 & 802.11g SHORT < RANGE > LONG Bluetooth 2 ZigBee PAN Bluetooth1 LOW < DATA RATE > HIGH

  6. IEEE 802.15 Working Group IEEE 802 LAN/MAN Standards Committee 802.1 Higher Layer LAN Protocols Working Group 802.11 Wireless Local Area Networks Working Group 802.15 Wireless Personal Area Networks Working Group 802.16 Broadband Wireless MAN Working Group 802.17 Resilient Packet Ring Working Group ... ... TG2 Coexistence Task Group TG3 WPAN High Rate Task Group TG4 WPAN Low Rate Task Group TG1 WPAN/Bluetooth Task Group

  7. IEEE 802.15.1 Original spec – Bluetooth Working range: < 10m RF Band: 2.4GHz ISM Modulation: Frequency Hopping (79 channels) Bit Rate: up to 720 kbps Network structure: piconet – up to 8 devices scatternet – combination of piconet Provide voice channel Application: Device communications Status – Standard (2002) (2005) WPAN – IEEE 802.15 (I) M=Master S=Slave P=Parked SB=Standby

  8. WPAN – IEEE 802.15 (II) • IEEE 802.15.2 – Coexistence • Coexistence with 802.11 • Status – Standard (2003) • IEEE 802.15.3/3b – High-Rate WPAN • RF Band: 2.4 GHz ISM • Bit Rate: > 20 Mbps • Network Structure • CSMA/CA + TDMA • piconet + p2p communication link • QoS • Applications: Short-range multimedia streaming • Status – Standard (2005)

  9. WPAN – IEEE 802.15 (III) • IEEE 802.15.4/4a – (Zigbee) Low-Rate WPAN • RF Band: 868 MHz, 915 MHz, 2.4GHz • Modulation: BPSK + spreading codes • Bit rate: < 250 kbps • Low power consumption • Application: Industrial/Medical sensor network • Network Structure • CSMA/CA • Star / peer-peer / combination • Status: • 802.15.4 – Standard (2003) (2006) • 802.15.4a – Standard (2007) • 802.15.4c/4d – PHY for China/Japan – pre-draft • 802.15.4e – enhancement - predraft

  10. Why is ZigBee Needed? • Unique needs of sensors and control systems • Don’t need high bandwidth • Low cost • Low latency • Very low energy consumption for long battery lives • Large number of devices

  11. WPAN – IEEE 802.15 (IV) • IEEE 802.15.5 – WPAN Mesh • Facilitating wireless mesh topologies • High-Rate MAC & Low-Rate MAC enhancement • Status – pre-draft

  12. WPAN Spec

  13. WLAN – IEEE 802.11 (WiFi) Network Structure

  14. IEEE 802.11 General MAC – CSMA/CA Modulation: FHSS, DSSS, IR PHY Bit rate: up to 2Mbps Status: Standard (1999) IEEE 802.11a RF Band: 5 GHz UNII Modulation: OFDM Bit Rate: up to 54 Mbps Status: Standard (1999) IEEE 802.11b RF Band: 2.4GHz ISM Modulation: CCK Bit Rate: up to 11 Mbps Status: Standard (1999) IEEE 802.11g Integrate 11a & 11b at 2.4 GHz Status: Standard IEEE 802.11n RF Band: 2.4 GHz ISM Modulation: OFDM + MIMO Bit Rate: > 100 Mbps Status: draft IEEE 802.11j Japanese PHY Status: Standard (2004) WLAN – IEEE 802.11 (PHY)

  15. IEEE 802.11e QoS Enhancement on MAC Status – Standard (2005) IEEE 802.11f Inter-Access Point Protocol (IAPP) Status – Standard (2003) Withdrawn (2006) IEEE 802.11i Security Enhancement on MAC Status: Standard (2004) Draft or pre-draft: 11k – Radio Resource Measurement 11p – Wireless Access in Vehicular Environments (WAVE) 11r – Fast Roaming 11s – WLAN Mesh 11u – Interworking with External Networks 11v – Network Management 11w – protected management frame 11z – Direct Link Setup WLAN – IEEE 802.11 (MAC)

  16. IEEE 802.11 PHY Layer

  17. WMAN – IEEE 802.16 (WiMAX)

  18. Potential Usage of WiMax

  19. IEEE 802.16-2004 – Fixed WMAN Range: Line of Sight: about 50 km Non Line of Sight: about 8 km Bit Rate: Line of Sight: 16 ~ 134 Mbps Non Line of Sight: up to ~70 Mbps RF Band: Line of Sight : 11~66 GHz Non Line of Sight: 2~11GHz Modulation: SC, OFDM, MIMO MAC: PMP, Mesh (optional) Duplexing: TDD/FDD QoS IEEE 802.16e-2005 – Mobile WMAN Support mobility Bit rate: up to 60 Mbps RF Band: < 11 GHz IEEE 802.16.2-2004 Coexistence IEEE 802.16f-2005 Management Information BASE (MIB) IEEE 802.16k-2007 Bridging of IEEE 802.16 WMAN – IEEE 802.16 Spec

  20. WMAN – IEEE 802.16 Spec (cont.) Draft or Pre-draft: • IEEE 802.16h • Improved Coexistence Mechanisms for License-Exempt Operation • IEEE 802.16i • Management Plane Procedures and Services • IEEE 802.16j • Multihop Relay Specification

  21. WWAN – IEEE 802.20 • Mobile Broadband Wireless Access (MBWA) • Mission • Develop the specification for an efficient packet based air interface that is optimized for the transport of IP based services • Scope: • MAC & PHY of MBWA • RF Band: < 3.5 GHz • Modulation: OFDM • Bit rate: > 1 Mbps per user • Mobility: up to 250 km/h • A direct competitor to 3G • Status: draft

  22. WRAN – IEEE 802.22 • Cognitive-Radio Based PHY/MAC • enable flexible, efficient and reliable spectrum use by adapting the radio’s operating characteristics to the real-time conditions of the environment • RF Band: • TV Bands (54 ~ 682 MHz) w/ bandwidth 6/7/8 MHz • MAC: PMP (point-to-multipoint) • Bit Rate: • 18 ~ 24 Mbps per channel • 1.5 Mbps upstream, 300 kbps downstream • Service Range: • 33 km for 4W CPE transmit power • up to 100 km • Propagation delays exceed 300 µs • Status: draft (802.22.1 draft 2.0)

  23. MIH – IEEE 802.21 • Media Independent Handover (MIH) • Mission • Enable handover and interoperability between heterogeneous network types including both 802 and non 802 networks. • Focus on Heterogeneous (Vertical) Handovers • Homogeneous (Horizontal) Handovers • Within Single Network (Localized Mobility) • 802.11r, 802.16e, 3GPP, 3GPP2 • Services: (next page) • Status: draft (D7.1)

  24. 802.11r I-WLAN VCC 802.16e SAE-LTE IEEE 802.21 IEEE 3GPP/2 MIP SIP FMIP NETLMM HIP MIPSHOP DNA IETF Handover Standards Horizontal Handovers Inter-working & Handover Signaling IP Mobility & Handover Signaling 802.21 Provides 802 component to other Handover Standards

  25. Link Layer Triggers State Change Predictive Network Initiated Applications (VoIP/RTP) Connection Management Handover Policy Handover Management Network Information Available Networks Neighbor Maps Network Services Mobility Management Protocols IETF 802.21 MIH Function Handover Commands Client Initiated Network Initiated Vertical Handovers Smart Triggers Handover Messages Information Service IEEE 802.21 Handover Messages Information Service L2 Triggers and Events Protocol and Device Hardware WLAN Cellular WMAN 802.21: Key Services 802.21 uses multiple services to Optimize Vertical Handovers

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