Mobility

Spectrum Opportunity-Based Control Channel Assignment in Cognitive Radio Networks

Download Now Free registration required

Executive Summary

The authors address the problem of dynamic assignment of coordination (control) channels in Cognitive Radio Networks (CRNs) by exploiting time - and space-varying spectrum opportunities. Motivated by the inherent grouping of Cognitive Radio (CR) users according to channel availability, they propose a cluster-based architecture for control-channel assignment in a CRN. CRs are grouped in the same cluster if they roughly sense similar idle channels and are within communication range, either directly or via a clusterhead. They formulate the clustering design as a maximum edge biclique problem. A distributed cluster agreement algorithm called Spectrum-Opportunity Clustering (SOC) is proposed to solve this problem.

  • Format: PDF
  • Size: 210.5 KB