TY - GEN
T1 - A low complexity algorithm for multiple relay selection in two-way relaying Cognitive Radio networks
AU - Alsharoa, Ahmad M.
AU - Ghazzai, Hakim
AU - Alouini, Mohamed-Slim
N1 - KAUST Repository Item: Exported on 2020-10-01
PY - 2013/6
Y1 - 2013/6
N2 - 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.
AB - 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.
UR - http://hdl.handle.net/10754/564744
UR - http://ieeexplore.ieee.org/document/6649253/
UR - http://www.scopus.com/inward/record.url?scp=84890874325&partnerID=8YFLogxK
U2 - 10.1109/ICCW.2013.6649253
DO - 10.1109/ICCW.2013.6649253
M3 - Conference contribution
SN - 9781467357531
SP - 327
EP - 331
BT - 2013 IEEE International Conference on Communications Workshops (ICC)
PB - Institute of Electrical and Electronics Engineers (IEEE)
ER -