Mobility

Control Channel Establishment in Cognitive Radio Networks Using Channel Hopping

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Executive Summary

In decentralized Cognitive Radio (CR) networks, enabling the radios to establish a control channel (i.e., "Rendezvous" to establish a link) is a challenging problem. The use of a dedicated common control channel simplifies the rendezvous process but may not be feasible in many opportunistic spectrum sharing scenarios due to the dynamically changing availability of all the channels, including the control channel. To address this problem, researchers have proposed the use of channel hopping protocols for enabling rendezvous in CR networks. Most, if not all, of the existing channel hopping schemes only provide ad hoc approaches for generating channel hopping sequences and evaluating their properties.

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