Wireless @ UW

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Wireless _at_ UW

• Terry Gray
• UW Computing Communications
• 14 March 2000

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WIRELESS CATEGORIES

• Wireless by Purpose
• Point-to-Point links
• Access networks
• Wireless by Spectrum
• Infrared
• RF
• Optical

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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

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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

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802.11 ISSUES

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

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ROAMING ISSUES

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

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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
  CC

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FUTURES

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

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CONCLUSIONS

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

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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