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Cognitive radio ad hoc networks (CRAHNs) have great potential to provide diverse services in the dynamic spectrum environment. And group mobility is one of the key features of CRAHNs in many applications. In this paper, the topology management of CRAHNs with group mobility is investigated. The channel availability and group mobility of nodes in CRAHNs are modeled. A robust clustering algorithm based...
Cognitive radio (CR) is a promising technology that enables opportunistic using of the unused spectrum to alleviate the spectrum scarcity problem. However, as the interference to licensed spectrum owners needs to be strictly controlled, CR enabled users (CRs) should vacate the using channel immediately on detecting licensed users activity and the end to end performance may be seriously degraded. In...
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