A low complexity algorithm for multiple relay selection in two-way relaying Cognitive Radio networks

Ahmad M. Alsharoa, Hakim Ghazzai, Mohamed-Slim Alouini

Research output: Chapter in Book/Report/Conference proceedingConference contribution

17 Scopus citations

Abstract

In this paper, a multiple relay selection scheme for two-way relaying cognitive radio network is investigated. We consider a cooperative Cognitive Radio (CR) system with spectrum sharing scenario using Amplify-and-Forward (AF) protocol, where licensed users and unlicensed users operate on the same frequency band. The main objective is to maximize the sum rate of the unlicensed users allowed to share the spectrum with the licensed users by respecting a tolerated interference threshold. A practical low complexity heuristic approach is proposed to solve our formulated optimization problem. Selected numerical results show that the proposed algorithm reaches a performance close to the performance of the optimal multiple relay selection scheme either with discrete or continuous power distributions while providing a considerable saving in terms of computational complexity. In addition, these results show that our proposed scheme significantly outperforms the single relay selection scheme. © 2013 IEEE.
Original languageEnglish (US)
Title of host publication2013 IEEE International Conference on Communications Workshops (ICC)
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Pages327-331
Number of pages5
ISBN (Print)9781467357531
DOIs
StatePublished - Jun 2013

Fingerprint Dive into the research topics of 'A low complexity algorithm for multiple relay selection in two-way relaying Cognitive Radio networks'. Together they form a unique fingerprint.

Cite this