Chapter 8. 802.11 Medium Access

IN THIS CHAPTER, YOU WILL LEARN ABOUT THE FOLLOWING:

  • CSMA/CA vs. CSMA/CD

    • Collision detection

  • Distributed Coordination Function (DCF)

    • Interframe space (IFS)

    • Duration/ID field

    • Carrier sense

    • Random back-off timer

  • Point Coordination Function (PCF)

  • Hybrid Coordination Function (HCF)

    • Enhanced Distributed Channel Access (EDCA)

    • HCF Controlled Channel Access (HCCA)

  • Block acknowledgment (BA)

  • Wi-Fi Multimedia (WMM)

802.11 Medium Access

CSMA/CA vs. CSMA/CD

Network communication requires a set of rules to provide controlled and efficient access to the network medium. Media access control (MAC) is the generic term used when discussing the different methods of access. ...

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