January 2012
Intermediate to advanced
312 pages
11h 2m
English
Content preview from Express Learning: Data Communications and Computer Networks
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8
Media Access Control
1. Write a short note on channel allocation.
Ans: In a broadcast (or multipoint) network, multiple users (stations) use a single broadcast channel to communicate with each other. In case more than one user wish to access the shared channel at the same time, the channel is allocated to one of the competing users at one time. This is called channel allocation. The decision to allocate the channel among the competing users can be made using any of the two schemes, namely, static channel allocation and dynamic channel allocation.
Static Channel Allocation
In this scheme, a single channel can be shared among multiple users using either frequency division multiplexing (FDM) or time division multiplexing (TDM) technique. In ...
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