
CSE5501: MOBILE & DISTRIBUTED COMPUTING SYSTEMS
Lecture 3: Wireless LANs
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IEEE 802.11a Current Status
IEEE 802.11a Current Status
IEEE 802.11a Current Status
• Uses same MAC as IEEE 802.11b
♦ 802.11a is a PHY extension only
• 5 GHz PHY formally adopted in Fall ‘99
♦ mandatory rates to 24 Mbps, optional rates to 54 Mbps
♦ PHY is nearly identical to HiperLAN2 (result of cooperation of both
groups)
• Products
♦ Expected rollout in late ‘00 or early ‘01
• WECA position
♦ Support IEEE802.11a @ 5 GHz
♦ Support efforts toward single global standard
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