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Aggregation-based spectrum assignment in cognitive radio networks

  • University of Greenwich

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

7 Scopus citations

Abstract

Cognitive radio has been introduced as a promising solution to the apparent problem of spectrum scarcity by exploiting unused portions of spectrum. The available spectrum bands or whitespaces are usually fragmented and discontinuous. In order to fulfil ever increasing demand for higher bandwidth, cognitive radio can exploit multiple whitespaces together to satisfy users' requirements by aggregating contiguous or fragmented portions of spectrum. In this paper, a novel genetic algorithm based spectrum aggregation scheme is proposed by taking into consideration the realistic constraints of co-channel interference and maximum aggregation span. Numerical results show that our method significantly increases the spectrum utilisation compared with the state-of-the-art solutions.

Original languageEnglish
Title of host publicationICACCS 2013 - Proceedings of the 2013 International Conference on Advanced Computing and Communication Systems
Subtitle of host publicationBringing to the Table, Futuristic Technologies from Around the Globe
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781479935062
DOIs
StatePublished - 28 Oct 2014
Externally publishedYes
Event2013 International Conference on Advanced Computing and Communication Systems, ICACCS 2013 - Coimbatore, India
Duration: 19 Dec 201321 Dec 2013

Publication series

NameICACCS 2013 - Proceedings of the 2013 International Conference on Advanced Computing and Communication Systems: Bringing to the Table, Futuristic Technologies from Around the Globe

Conference

Conference2013 International Conference on Advanced Computing and Communication Systems, ICACCS 2013
Country/TerritoryIndia
CityCoimbatore
Period19/12/1321/12/13

Keywords

  • cognitive networks
  • genetic algorithm
  • spectrum aggregation
  • spectrum assignment

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