A cluster-based approach for routing in dynamic networks
ACM SIGCOMM Computer Communication Review
WCA: A Weighted Clustering Algorithm for Mobile Ad Hoc Networks
Cluster Computing
Distributed Clustering for Ad Hoc Networks
ISPAN '99 Proceedings of the 1999 International Symposium on Parallel Architectures, Algorithms and Networks
The maximum edge biclique problem is NP-complete
Discrete Applied Mathematics
Proceedings of the 5th ACM international symposium on Mobile ad hoc networking and computing
NeXt generation/dynamic spectrum access/cognitive radio wireless networks: a survey
Computer Networks: The International Journal of Computer and Telecommunications Networking
Secure Distributed Cluster Formation in Wireless Sensor Networks
ACSAC '06 Proceedings of the 22nd Annual Computer Security Applications Conference
Spectrum sharing through distributed coordination in dynamic spectrum access networks
Wireless Communications & Mobile Computing - Cognitive Radio, Software Defined Radio And Adaptive Wireless Systems
Computer Networks: The International Journal of Computer and Telecommunications Networking
Adaptive clustering for mobile wireless networks
IEEE Journal on Selected Areas in Communications
A scalable dynamic spectrum access solution for large wireless networks
ISWPC'10 Proceedings of the 5th IEEE international conference on Wireless pervasive computing
Ring-Walk Based Channel-Hopping Algorithms with Guaranteed Rendezvous for Cognitive Radio Networks
GREENCOM-CPSCOM '10 Proceedings of the 2010 IEEE/ACM Int'l Conference on Green Computing and Communications & Int'l Conference on Cyber, Physical and Social Computing
A survey of common control channel design in cognitive radio networks
Physical Communication
Coordination problem in cognitive wireless mesh networks
Pervasive and Mobile Computing
A Cluster-Based MAC Protocol for Cognitive Radio Ad Hoc Networks
Wireless Personal Communications: An International Journal
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We 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, we 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. We 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. SOC provides a desirable balance between two competing factors: the set of common idle channels within each cluster and the cluster size. A large set of common idle channels within each cluster allows graceful migration from the current control channel should primary radio (PR) activity appear on that channel. Hence, SOC provides a stable network partition with respect to local coordination, with no need for frequent reclustering. Moreover, when reclustering has to be performed (due to CR mobility or PR activity), CRs agree on new clusters after the broadcast of only three messages, thus incurring low communication overhead.