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A cognitive radio sensor network (CRSN) is a wireless sensor network that is equipped with cognitive radio capability. Clustering is a popular technique that can be applied to wireless sensor networks, although it has been proven to be a challenge to implement it in CRSNs. Moreover, few proposals have successfully applied energy-efficient clustering techniques in CRSNs. Therefore, with the aim of increasing energy efficiency, network lifetime, network stability, and optimal cluster-head selection process, this paper proposes a novel energy-efficient clustering based on cooperative spectrum sensing (ECS) for CRSNs. The proposed ECS scheme utilizes the concept of pairing among sensor nodes and switches between Awake and Sleep modes for energy efficiency. A comprehensive simulation in MATLAB was carried out to validate the proposed method. The simulation results show that, compared with conventional methods, the proposed method is more energy efficient and that the overall CRSN's lifetime is prolonged. <\/jats:p>","DOI":"10.1155\/2015\/198456","type":"journal-article","created":{"date-parts":[[2015,6,17]],"date-time":"2015-06-17T21:00:55Z","timestamp":1434574855000},"page":"198456","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":14,"title":["A Novel Energy-Efficient Clustering Based Cooperative Spectrum Sensing for Cognitive Radio Sensor Networks"],"prefix":"10.1177","volume":"11","author":[{"given":"Ashish","family":"Rauniyar","sequence":"first","affiliation":[{"name":"Wireless and Emerging Network System Lab, School of Electronics Engineering, Kumoh National Institute of Technology, Gumi 730-701, Republic of Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Soo Young","family":"Shin","sequence":"additional","affiliation":[{"name":"Wireless and Emerging Network System Lab, School of Electronics Engineering, Kumoh National Institute of Technology, Gumi 730-701, Republic of Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"179","published-online":{"date-parts":[[2015,6,17]]},"reference":[{"key":"B1-2015-198456","doi-asserted-by":"publisher","DOI":"10.1016\/j.comnet.2008.04.002"},{"key":"B2-2015-198456","doi-asserted-by":"publisher","DOI":"10.1016\/j.comcom.2007.05.024"},{"key":"B4-2015-198456","doi-asserted-by":"publisher","DOI":"10.1109\/98.788210"},{"key":"B5-2015-198456","doi-asserted-by":"publisher","DOI":"10.1109\/jsac.2004.839380"},{"key":"B6-2015-198456","doi-asserted-by":"publisher","DOI":"10.1109\/twc.2007.05776"},{"key":"B7-2015-198456","doi-asserted-by":"publisher","DOI":"10.1109\/TWC.2010.03.090467"},{"key":"B8-2015-198456","doi-asserted-by":"publisher","DOI":"10.1109\/icc.2006.254957"},{"key":"B9-2015-198456","doi-asserted-by":"publisher","DOI":"10.1109\/MNET.2009.5191144"},{"key":"B10-2015-198456","doi-asserted-by":"publisher","DOI":"10.1155\/2013\/301869"},{"key":"B11-2015-198456","doi-asserted-by":"publisher","DOI":"10.1109\/HICSS.2000.926982"},{"key":"B12-2015-198456","doi-asserted-by":"publisher","DOI":"10.1016\/j.comcom.2006.02.017"},{"key":"B14-2015-198456","doi-asserted-by":"publisher","DOI":"10.1109\/tmc.2004.41"},{"key":"B15-2015-198456","doi-asserted-by":"publisher","DOI":"10.14257\/ijmue.2015.10.2.02"},{"key":"B16-2015-198456","doi-asserted-by":"publisher","DOI":"10.1016\/j.jnca.2013.11.001"},{"key":"B17-2015-198456","doi-asserted-by":"publisher","DOI":"10.1117\/12.2015205"},{"key":"B18-2015-198456","doi-asserted-by":"publisher","DOI":"10.1109\/tvt.2013.2258952"},{"key":"B19-2015-198456","doi-asserted-by":"publisher","DOI":"10.1109\/vtcfall.2014.6965907"},{"key":"B20-2015-198456","doi-asserted-by":"publisher","DOI":"10.1109\/glocom.2011.6134296"},{"key":"B21-2015-198456","doi-asserted-by":"publisher","DOI":"10.1007\/s11434-012-5254-4"},{"key":"B22-2015-198456","first-page":"577","volume-title":"Proceedings of the 18th International Conference on Machine Learning (ICML '01)","volume":"1","author":"Wagstaff K."},{"key":"B23-2015-198456","first-page":"307","volume-title":"Proceedings of the 19th International Conference on Machine Learning (ICML '02)","author":"Klein D."},{"key":"B24-2015-198456","first-page":"179","volume-title":"Proceedings of the 9th International Conference on Cognitive Radio Oriented Wireless Networks and Communications (CROWNCOM \u201914)","author":"Eletreby R. 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