UW Terry Gray UW Computing & Communications 14 March 2000.

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Presentation transcript:

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 LAN (Local-Area-Network) –IEEE –ETSI HiperLAN2 MAN (Metro-Area-Network) –LMDS WAN (Wide-Area-Network) – Ricochet –CDPD –etc, etc, etc

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

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

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

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

FUTURES a for link technology? Mobile IP for roaming? EAPOE for access control?

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

REFERENCES Open Group: 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