Data Communications and Computer Networks by Pearson

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 al-

location. 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 ...