A stable route selection algorithm for Cognitive Radio Networks

In this paper, a route selection mechanism for cognitive radio network (CRN)is proposed where the route construction process selects only those channels which have the maximum probability of being stable. By the term stable channel, we mean that the channel will not be claimed by primary users (PUs) frequently. A probabilistic approach for finding the steady channel is adopted where an initial state probability is considered based on the previous channel availability history. A set of algorithms are proposed in the paper to implement the route selection method in CRN and simulated in ns-2.Routing overhead, packet loss rate and route sustainability parameters with respect to the proposed protocol, show improvement over Cognitive AODV (CAODV).

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