December 2001
Intermediate to advanced
336 pages
7h 13m
English
Content preview from Ad Hoc Mobile Wireless Networks: Protocols and Systems
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Chapter 4 Ad Hoc Wireless Media Access Protocols
4.1 Introduction
Wireless media can be shared and any nodes can transmit at any point in time. This could result in possible contention over the common channel. If channel access is probabilistic, then the resultant attainable throughput is low. In an ad hoc wireless network, every node can possibly move, and hence, there is no fixed network node to act as the central controller.
A MAC protocol is a set of rules or procedures to allow the efficient use of a shared medium, such as wireless. We define a node as any host that is trying to access the medium. The sender is a node that is attempting to transmit over the medium. The receiver is a node that is the recipient of the current transmission. ...
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