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Wireless @ UW

Wireless @ UW. Terry Gray UW Computing & Communications 14 March 2000. WIRELESS CATEGORIES. Wireless by Purpose Point-to-Point links Access networks Wireless by Spectrum Infrared RF Optical. Wireless RF by Range. PAN/HAN (Personal/Home-Area-Network) Bluetooth HomeRF/SWAP

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Wireless @ UW

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  1. Wireless @ UW Terry Gray UW Computing & Communications 14 March 2000

  2. WIRELESS CATEGORIES • Wireless by Purpose • Point-to-Point links • Access networks • Wireless by Spectrum • Infrared • RF • Optical

  3. Wireless RF by Range • PAN/HAN (Personal/Home-Area-Network) • Bluetooth • HomeRF/SWAP • LAN (Local-Area-Network) • IEEE 802.11 • ETSI HiperLAN2 • MAN (Metro-Area-Network) • LMDS • WAN (Wide-Area-Network) • Ricochet • CDPD • etc, etc, etc

  4. LAN WIRELESS STANDARDS • IEEE 802.11 2.4GHz, 1-2Mbps, FHSS, DSSS • IEEE 802.11b 2.4Ghz, 11Mbps DSSS • IEEE 802.11a 5Ghz, 24Mbps • ETSI HiperLAN2 5Ghz, 54Mbps, TDMA

  5. 802.11 ISSUES • Network Design, esp. Topology • Access control • Security • Compatibility • Interference • Relation to Bluetooth, HomeRF, etc

  6. ROAMING ISSUES • Layer 2 (802.11) vs. Layer 3 (Mobile IP) • Vendor incompatibility • LAN vs. WAN

  7. POLICY ISSUES • Part of campus network infrastructure • Want to encourage small-scale deployments with minimum overhead, but coordination needed to avoid interference • Large-scale deployments need to be coordinated by C&C

  8. FUTURES • 802.11a for link technology? • Mobile IP for roaming? • EAPOE for access control?

  9. CONCLUSIONS • Wireless is very addictive • It will be very popular • It will be very problematic • The dust has not settled

  10. REFERENCES • Open Group: www.openwirelessdata.org • Wireless Ethernet Compatibility Alliance (WECA) • Wireless LAN Association (WLANA) • Portable Computer & Communications Association (PCCA) • Internet Engineering Task Force (IETF) • WAP Forum • Bluetooth Special Interest Group • Mobile Wireless Internet Forum (MWIF) • Wireless Information Networks Forum (WINForum) • HiperLAN2 Global Forum • Wireless Data Forum

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