CRAHNs: Cognitive radio ad hoc networks
Ad Hoc Networks
A survey on MAC protocols for cognitive radio networks
Ad Hoc Networks
Cognitive radio: brain-empowered wireless communications
IEEE Journal on Selected Areas in Communications
Cognitive sensor networks implementation in medical environmental surveillance
Proceedings of the 7th International Conference on Body Area Networks
A Distributed MAC Protocol Using Virtual Control Channels for CRSNs
Wireless Personal Communications: An International Journal
Wireless Personal Communications: An International Journal
CogNS: A Simulation Framework for Cognitive Radio Networks
Wireless Personal Communications: An International Journal
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Dynamic spectrum access stands as a promising and spectrum-efficient communication approach for resource-constrained multihop wireless sensor networks due to their event-driven communication nature, which generally yields bursty traffic depending on the event characteristics. In addition, opportunistic spectrum access may also help realize the deployment of multiple overlaid sensor networks, and eliminate collision and excessive contention delay incurred by dense node deployment. Incorporating cognitive radio capability in sensor networks yields a new sensor networking paradigm (i.e., cognitive radio sensor networks). In this article the main design principles, potential advantages, application areas, and network architectures of CRSNs are introduced. The existing communication protocols and algorithms devised for cognitive radio networks and WSNs are discussed along with the open research avenues for the realization of CRSNs.