A genetic 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

4 Scopus citations

Abstract

In this paper, we investigate a multiple relay selection scheme for two-way relaying cognitive radio networks where primary users and secondary users operate on the same frequency band. More specifically, cooperative relays using Amplifyand- Forward (AF) protocol are optimally selected to maximize the sum rate of the secondary users without degrading the Quality of Service (QoS) of the primary users by respecting a tolerated interference threshold. A strong optimization tool based on genetic algorithm is employed to solve our formulated optimization problem where discrete relay power levels are considered. Our simulation results show that the practical heuristic approach achieves almost the same performance of the optimal multiple relay selection scheme either with discrete or continuous power distributions. Copyright © 2013 by the Institute of Electrical and Electronic Engineers, Inc.
Original languageEnglish (US)
Title of host publication2013 IEEE 78th Vehicular Technology Conference (VTC Fall)
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
ISBN (Print)9781467361873
DOIs
StatePublished - Sep 2013

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