IEEE 802.11 Frame

Wired vs Wireless

Wired IEEE802.3

Wireless- IEEE802.11

Physical LayerPLCP

Frame Control

Background: 1,2: Low priority. Printing and File transfer

Best Effort Priority 0, 3: Low priority but higher than the one of Background

Video 5, 4 1 HDTV stream, 3 SDTV streams.

Voice 7,6 Highest priority

Wi-Fi Multimedia (WMM) Access Categories

Some Control Frames

Some Control Frames

Hidden Node Problem

Hidden Node ProblemCTS/RTS