摘要：One critical issue for
routing in cognitive radio ad hoc networks (CRAHNs) is how to select a reliable
path for forwarding traffic. This is because mobility may cause radio links to
break frequently. The reliability of a path depends on the availability of
those links that constitutes the path. In this letter, we present a novel
approach to predict the probability of the availability of the link between two
cognitive radio nodes. The prediction is achieved by estimating the link
activation and spectrum activation probabilities. Our prediction is verified by
simulation and proved to be accurate. This study can provide reliability
assurance on dynamic routing for cognitive radio ad hoc networks.
关键词：Cognitive Radio; Ad Hoc Network; Spectrum Mobility; Link Availability
