Cognitive radio sensor networks

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, opportunis...

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Bibliographic Details
Published in:IEEE network 2009, Vol.23 (4), p.34-40
Main Authors: Akan, O., Karli, O., Ergul, O.
Format: Article
Language:English
Subjects:
Algorithms
Cognitive radio
Communication system control
Councils
Delay
Network topology
Networks
Protocol (computers)
Protocols
Radio
Road accidents
Sensor phenomena and characterization
Sensors
Spread spectrum communication
Stands
Telecommunication traffic
Wireless communication
Wireless sensor networks
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Summary: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.
ISSN:0890-8044
1558-156X
DOI:10.1109/MNET.2009.5191144