Joint channel selection and cluster-based routing scheme based on reinforcement learning for cognitive radio networks

Yasir Saleem, Kok Lim Alvin Yau, Hafizal Mohamad, Nordin Ramli, Mubashir Husain Rehmani

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

5 Citations (Scopus)

Abstract

Cognitive radio network (CRN) has emerged as a promising solution to solve the problem of underutilization of licensed spectrum. It allows opportunistic access of unutilized spectrum (or white spaces) by unlicensed users (or secondary users, SUs) whilst minimizing interference to licensed users (or primary users, PUs). The dynamicity of channel availability has imposed additional challenges for routing in CRNs. Besides providing optimal routes to SUs for communication, one of the key requirements of routing in CRNs is to minimize interference to PUs. In this paper, we propose a joint channel selection and cluster-based routing scheme called SMART (SpectruM-Aware cluster-based RouTing) for CRNs. SMART enables SUs to form clusters in the network, and subsequently, it enables SU source node to search for a route to its destination node in the underlying clustered network. SMART applies an artificial intelligence approach called reinforcement learning in order to maximize network performance, such as SU-PU interference and packet delivery ratio. Simulation results show that SMART reduces significant interference to PUs without significance degradation of packet delivery ratio when compared to clustered scheme without cluster maintenance (i.e., SMART-NO-MNT) and non-clustered scheme (i.e., spectrum-aware AODV or SA-AODV).

Original languageEnglish
Title of host publicationI4CT 2015 - 2015 2nd International Conference on Computer, Communications, and Control Technology, Art Proceeding
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages21-25
Number of pages5
ISBN (Electronic)9781479979523
DOIs
Publication statusPublished - 24 Aug 2015
Externally publishedYes
Event2nd International Conference on Computer, Communications, and Control Technology, I4CT 2015 - Kuching, Sarawak, Malaysia
Duration: 21 Apr 201523 Apr 2015

Publication series

NameI4CT 2015 - 2015 2nd International Conference on Computer, Communications, and Control Technology, Art Proceeding

Conference

Conference2nd International Conference on Computer, Communications, and Control Technology, I4CT 2015
Country/TerritoryMalaysia
CityKuching, Sarawak
Period21/04/201523/04/2015

Keywords

  • clustering
  • Cognitive radio networks
  • reinforcement learning
  • routing

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