for wireless and cellular network, channel allocation schemes are required to allocate bandwidth and communication channels to base stations, access points and terminal equipment. The objective is to achieve maximum system spectral efficiency in bit/s/Hz/site by means of frequency reuse, but still assure a certain grade of service
by avoiding co-channel interference
and adjacent channel interference among nearby cells or networks that share the bandwidth.
There are two types of strategies that are followed:-
- Fixed: FCA, fixed channel allocation: Manually assigned by the network operator
- Dynamic:
- DCA, dynamic channel allocation,
- DFS, dynamic frequency selection
- Spread spectrum
In Fixed Channel Allocation or Fixed Channel Assignment (FCA) each cell
is given a predetermined set of frequency channels.
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