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CWNA®: Certified Wireless Network Administrator Official Study Guide
book

CWNA®: Certified Wireless Network Administrator Official Study Guide

by David D. Coleman, David A. Westcott
April 2009
Intermediate to advanced content levelIntermediate to advanced
765 pages
19h 26m
English
Sybex
Content preview from CWNA®: Certified Wireless Network Administrator Official Study Guide

Chapter 18. High Throughput (HT) and 802.11n

IN THIS CHAPTER, YOU WILL LEARN ABOUT THE FOLLOWING:

  • 802.11n history

    • 802.11n draft amendment

    • Wi-Fi Alliance certification

  • MIMO

    • Radio chains

    • Spatial multiplexing (SM)

    • MIMO diversity

    • Transmit beamforming (TxBF)

  • HT channels

    • 20 MHz non-HT and HT channels

    • 40 MHz channels

    • Guard interval (GI)

    • Modulation and coding scheme (MCS)

  • HT PHY

    • Non-HT legacy

    • HT Mixed

    • HT Greenfield

  • HT MAC

    • A-MSDU

    • A-MPDU

    • MTBA

    • RIFS

    • HT power management

  • HT operation

    • 20/40 channel operation

    • HT protection modes (0–3)

    • Dual-CTS protection

    • Phased coexistence operation (PCO)

High Throughput (HT) and 802.11n

802.11n requires a whole new approach to the Physical layer, using a technology called MIMO that requires ...

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Publisher Resources

ISBN: 9780470438909Purchase book