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Wireless LANs and PANs

Wireless LANs and PANs. HIPERLAN standard Bluetooth HomeRF ja IrDA. HIPERLAN STANDARD. HIPERLAN / 1 RLAN standard, ETSI 1995 HIPERLAN / 2 Short-range wireless access to Internet HIPERACCESS Covers the ”last mile” HIPERLINK High-speed radio links for point-to-point interconnections.

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Wireless LANs and PANs

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  1. Wireless LANs and PANs • HIPERLAN standard • Bluetooth • HomeRF ja IrDA

  2. HIPERLAN STANDARD • HIPERLAN / 1 • RLAN standard, ETSI 1995 • HIPERLAN / 2 • Short-range wireless access to Internet • HIPERACCESS • Covers the ”last mile” • HIPERLINK • High-speed radio links for point-to-point interconnections

  3. HIPERLAN 1 • Physical layer • MAC sublayer • CAC sublayer • EY-NPMA • Power Conservation Issues

  4. HIPERLAN 2 • Two modes of communications: • Business environment • Home environment • Physical layer • CL • DLC • RLC sublayer • ACF • DCC

  5. HIPERLAN 2 • RRC • Dynamic frequency selection • Handoff • Power saving • EC • MAC sublayer

  6. BLUETOOTH • Ericsson 1994 • IEEE 802.15 • Popular • Specifications: • Core • Profiles • Radio layer • Baseband layer

  7. BLUETOOTH • Piconet • Scatternets • Frequency Hopping • Packet-Based Communication • Power Management • Profiles: • Generic • Telephony • Networking • Serial and object exchange

  8. Home RF • Homes and small offices • Technical Features • Connection point • Asynchronous data node • Voice node • Voice and data node

  9. IrDA • Requires LoS • Effective range 1 m • Low power consume • 4 Mbps data rates • Cost of devices is low

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