O'Reilly logo

CWNA: Certified Wireless Network Administrator Official Study Guide: Exam PW0-105, 3rd Edition by David A. Westcott, David D. Coleman

Stay ahead with the world's most comprehensive technology and business learning platform.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more.

Start Free Trial

No credit card required

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)

Airtime Fairness

One of the difficulties we had in writing this chapter was that in order for you to understand how a wireless station gains access to the media, we have to teach more than what is needed for the CWNA exam. The details are needed to grasp the concepts; however, it is the concepts that you will be ...

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, interactive tutorials, and more.

Start Free Trial

No credit card required