TY - GEN
T1 - Distributed resource allocation for multi-user multi-relay AF cooperative communication
AU - Al-Tous, Hanan
AU - Barhumi, Imad
N1 - Publisher Copyright:
© 2014 IEEE.
PY - 2014/1/23
Y1 - 2014/1/23
N2 - Joint power and bandwidth allocation with relay selection is investigated for multi source multi relay amplify and forward cooperative communication system. The problem at hands is mixed integer optimization problem, which is computationally intensive to solve using exhaustive search. In this sense, particle swarm optimization (PSO) is used to solve the formulated problem without the need for the convexity and differentiability of the objective function, nor the relaxation of the integer variables, which are associated with conventional optimization techniques. Joint power and bandwidth allocation is proposed based on maximizing the sum rate of all users. The data rate achieved using AF is not a jointly-concave function in the power and bandwidth profiles. Frequency division multiplexing (FDM) is used based on the optimal power and bandwidth allocation; part of the data is transmitted using the relay, and the other part is transmitted using the direct link. A distributed implementation of the resource allocation problem is proposed based on the formulated fitness function. Numerical results demonstrate the effectiveness of the proposed allocation method.
AB - Joint power and bandwidth allocation with relay selection is investigated for multi source multi relay amplify and forward cooperative communication system. The problem at hands is mixed integer optimization problem, which is computationally intensive to solve using exhaustive search. In this sense, particle swarm optimization (PSO) is used to solve the formulated problem without the need for the convexity and differentiability of the objective function, nor the relaxation of the integer variables, which are associated with conventional optimization techniques. Joint power and bandwidth allocation is proposed based on maximizing the sum rate of all users. The data rate achieved using AF is not a jointly-concave function in the power and bandwidth profiles. Frequency division multiplexing (FDM) is used based on the optimal power and bandwidth allocation; part of the data is transmitted using the relay, and the other part is transmitted using the direct link. A distributed implementation of the resource allocation problem is proposed based on the formulated fitness function. Numerical results demonstrate the effectiveness of the proposed allocation method.
KW - AF Cooperative Communications
KW - Maximizing the Sum Rate
KW - Particle Swarm Optimization
KW - Relay Selection
KW - Resource Allocation
UR - http://www.scopus.com/inward/record.url?scp=84946692611&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84946692611&partnerID=8YFLogxK
U2 - 10.1109/ICSPCS.2014.7021077
DO - 10.1109/ICSPCS.2014.7021077
M3 - Conference contribution
AN - SCOPUS:84946692611
T3 - 2014, 8th International Conference on Signal Processing and Communication Systems, ICSPCS 2014 - Proceedings
BT - 2014, 8th International Conference on Signal Processing and Communication Systems, ICSPCS 2014 - Proceedings
A2 - Wysocki, Beata J.
A2 - Wysocki, Tadeusz A.
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 8th International Conference on Signal Processing and Communication Systems, ICSPCS 2014
Y2 - 15 December 2014 through 17 December 2014
ER -