Cognitive radio networks enable unlicensed users to communicate using the licensed
spectrum without causing interference to legitimate users. To establish a communication …

Rendezvous is a fundamental building block in distributed cognitive-radio networks (CRNs),
in which pairs or groups of users must find a jointly available channel. Research on the …

In a distributed cognitive radio (CR) sensor network, transmission and reception on vacant
channels require cognitive radio nodes to achieve rendezvous. Because of the lack of …

Cognitive radio networks (CRNs) cope with spectrum scarcity and underutilisation problem
through opportunistic sharing of spectrum and provide dynamic access to the free portions of …

Underutilization of radio spectrum is being rehabilitated into resources with the dynamic
configuration characteristics of cognitive radio. Upon detection of vacant channel …

Effective utilization of radio spectrum by the secondary user has become a tremendous
issue for cognitive radio communication. The agreement of having a common channel for …

Cognitive radio technology has shown tremendous potential to reduce spectrum paucity
through its spectrum access mechanism. Effective use of the radio spectrum by the …