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MAC Layer Spectrum Sensing in Cognitive Radio Networks
University of Gävle, Center for RF Measurement Technologies. University of Gävle, Faculty of Engineering and Sustainable Development, Department of Electronics, Mathematics and Natural Sciences. KTH. (Electronics)
Blekinge Institute of Technology.
2013 (English)In: Self-Organization and Green Applications in Cognitive Radio Networks / [ed] Anwer Al-Dulaimi, John Cosmas, Abbas Mohammed, IGI Global, 2013, 1, 210-230 p.Chapter in book (Refereed)
Abstract [en]

Efficient use of the available licensed radio spectrum is becoming increasingly difficult as the demand and usage of the radio spectrum increases. This usage of the spectrum is not uniform within the licensed band but concentrated in certain frequencies of the spectrum while other parts of the spectrum are inefficiently utilized. In cognitive radio environments, the primary users are allocated licensed frequency bands while secondary cognitive users can dynamically allocate the empty frequencies within the licensed frequency band, according to their requested quality of service specifications. In this chapter, the authors investigate and assess the performance of MAC layer sensing schemes in cognitive radio networks. Two performance metrics are used to assess the performance of the sensing schemes: the available spectrum utilization and the idle channel search delay for reactive and proactive sensing schemes. In proactive sensing, the adapted and non-adapted sensing period schemes are also assessed. Simulation results show that proactive sensing with adapted periods provides superior performance at the expense of higher computational cost performed by network nodes.

Place, publisher, year, edition, pages
IGI Global, 2013, 1. 210-230 p.
National Category
Communication Systems
Identifiers
URN: urn:nbn:se:hig:diva-13980DOI: 10.4018/978-1-4666-2812-0.ch010Scopus ID: 2-s2.0-84898261769ISBN: 978-146662812-0 ISBN: 9781466628137 (print)OAI: oai:DiVA.org:hig-13980DiVA: diva2:612276
Available from: 2013-03-21 Created: 2013-03-21 Last updated: 2014-11-11Bibliographically approved

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Hamid, Mohamed
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CiteExportLink to record
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Citation style
  • apa
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