Chapter 2. 802.11 Wireless LANs

802.11 WLANs are becoming pervasive in network deployments primarily because they are easy to implement and easy to use. From the perspective of the user, they function and perform exactly like a shared Ethernet LAN. Ironically, the 802.11 architecture is anything but simple. The challenges of an uncontrolled medium are more complex than those of the controlled wired Ethernet medium.

The 802.11 MAC must orchestrate an access mechanism that allows fair access to the medium. 802.11 stations do not possess the ability to sense collisions that the carrier sense ...

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