Abstract
A cognitive radio network, an upcoming paradigm, is the answer for the deficiency of spectrum. An ad hoc network makes use of such type of networks and forms the Cognitive radio ad hoc networks (CRAHNs). Formation of route(s) to the destination develops a critical issue in such networks due to two types of users. Based on the network access, the users are categorized as: Primary users (PU) and Secondary Users (SU). In this paper, an opportunistic routing protocol called CRCN CORMEN, an on demand routing protocol has been discussed for Cognitive radio ad hoc networks. CRCN CORMEN protocol is compared with other on demand routing protocols and their performance is evaluated and compared using NS2 Simulator.
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