December 2001
Intermediate to advanced
336 pages
8h 42m
English
Content preview from OFDM Wireless LANs: A Theoretical and Practical GuideBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Chapter 6. Medium Access Control (MAC) for IEEE 802.11 Networks
Venkatesh Vadde and Sridhar Ramesh
IN THIS CHAPTER
The throughput of a WLAN is impacted not only by the channel quality, SNR, and diversity in the PHY layer but also by the medium access control (MAC) protocol. The MAC in IEEE 802.11a WLANs assumes significance owing to the specific nature of a wireless medium. Unlike in wired media, the channel in a wireless OFDM system changes dynamically, leading to unpredictable fading and to a high bit error rate (BER). The high BER often degrades further owing to the inability to detect an impending collision ...
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