A Genetic Algorithm for Multiple Relay Selection in Two-Way Relaying Cognitive Radio Networks

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.

Meeting Name

78th Vehicular Technology Conference, VTC Fall 2013 (2013: Sep. 2-5, Las Vegas, NV)

Department(s)

Electrical and Computer Engineering

Keywords and Phrases

Cooperative cognitive radio network; Genetic algorithm; Two-way relaying

International Standard Book Number (ISBN)

978-1-4673-6187-3

International Standard Serial Number (ISSN)

1090-3038

Document Type

Article - Conference proceedings

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2013 Institute of Electrical and Electronics Engineers (IEEE), All rights reserved.

Publication Date

01 Sep 2013

Link to Full Text

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