Presentation

HIPERLAN: HI gh PE rformance R adio L ocal A rea N etworks By Lei Fang (lfang@nd.edu), Wenyi Zhang (wzhang1@nd.edu) 5 th November 2001

I. Introduction ,[object Object],[object Object],[object Object],[object Object],[object Object]

Mobility and data rates for communications standards

[object Object],[object Object],[object Object],[object Object],~155Mbps (data rate) ~25Mbps (data rate) 6~54Mbps 23.5Mbps PHY Bit Rate 17GHz 5GHz 5GHz 5GHz Freq. Range Wireless Point-to-Point Wireless Local Loop Wireless ATM Wireless Ethernet Description HiperLink HiperAccess Hiperlan2 Hiperlan 1

[object Object],[object Object],[object Object],[object Object],[object Object]

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

ADC Communications Alcatel Adaptive Broadband Axis Bosch Cambridge Silicon Radio Canon Dell Elisa Emtac Ericsson Eumitcom Grundig HLAN Intersil KDI Lucent Matsushita Communications Mediascape Mitsubishi Motorola National Semiconductors Nokia NTT Philips Samsung ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],H2GF Membership Status - Commercial Support

[object Object],[object Object],[object Object],[object Object]

II. Hiperlan2 System Overview ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

MAC CAC PHY HiperLAN Type 1 Reference Model PHY MAC EC ACF DCC RLC DLC CL HiperLAN Type 2 Reference Model Control Plane User Plane MAC: Medium Access Sublayer EC: Error Control CAC: Channel Access Control Sublayer RLC: Radio Link Control PHY: Physical Layer RRC: Radio Resource Control DLC: Data Link Control Layer ACF: Association Control Function CL: Convergence Layer DCC: DLC Connection Control ,[object Object],RRC

Physical Layer ,[object Object],[object Object],1: information bits 2: scrambled bits 3: encoded bits 4: interleaved bits 5: sub-carrier symbols 6: complex baseband OFDM symbols 7: PHY bursts

[object Object],[object Object],[object Object]

[object Object],[object Object],[object Object],[object Object],[object Object],54 ¾ 64QAM 7(optional) 36 ¾ 16QAM 6 27 9/16 16QAM 5 18 ¾ QPSK 4 12 ½ QPSK 3 9 ¾ BPSK 2 6 ½ BPSK 1 Physical layer bit rate (Mbps) Code rate Modulation Mode

[object Object],[object Object]

III. Comparison with Peers ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

[object Object],[object Object],[object Object],[object Object],[object Object],Single carrier with Dynamic Frequency Selection Single carrier DSSS Frequency-hopping or DSSS Frequency selection ATM/802.1p/RSVP/DiffServ (full control) PCF PCF PCF (Point Control Function) QoS NAI/IEEE address/X.509 No No No Authentication Yes Yes Yes Yes Multicast Conn.-oriented Conn.-less Conn.-less Conn.-less Connectivity Central resource control/TDMA/TDD CSMA/CA CS MAC 32 32 5 1.2 Max data rate, layer 3 (Mbps) 54 54 11 2 Max PHY rate (Mbps) 5 5 2.4 2.4 Spectrum (GHz) HiperLAN2 802.11a 802.11b 802.11

Link adaptation No No No Radio link quality control HiperLAN/2 MIB 802.11 MIB 802.11 MIB 802.11 MIB Management Ethernet, IP, ATM, UMTS, FireWire (IEEE 1394), PPP Ethernet Ethernet Ethernet Fixed Network Support To be specified by H2GF No No No Handover support DES, 3DES 40-bit RC4 40-bit RC4 40-bit RC4 Encryption HiperLAN2 802.11a 802.11b 802.11

IV. Conclusion ,[object Object],[object Object],[object Object],[object Object],[object Object]

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