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Wireless LANs and PANs

This guide explores the key standards and technologies related to Wireless Local Area Networks (WLANs) and Personal Area Networks (PANs), focusing on HIPERLAN, Bluetooth, HomeRF, and IrDA. Delve into their unique specifications, operational modes, communication layers, and applications in both business and home environments. Learn how technologies like dynamic frequency selection and power management enhance efficiency in short-range wireless access. This resource is essential for anyone interested in wireless communication and network technologies.

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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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