Channel allocation schemes

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In radio resource management for wireless and cellular networks, channel allocation schemes 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.

Channel-allocation schemes follow one of two types of strategy:^[1]

1. Fixed: FCA, fixed channel allocation: manually assigned by the network operator
2. Dynamic:
   1. DCA, dynamic channel allocation
   2. DFS, dynamic frequency selection
   3. Spread spectrum