TY - GEN
T1 - A NOMA-PSO based cooperative transmission method in satellite communication systems
AU - Wan, Ruimin
AU - Zhu, Lina
AU - Li, Tian
AU - Bai, Lin
N1 - Publisher Copyright:
© 2017 IEEE.
PY - 2017/12/7
Y1 - 2017/12/7
N2 - Due to the limited frequency and energy resources, cooperative satellite communication (SATCOM) systems have been widely studied. To improve the spectrum efficiency further, we propose to combine non-orthogonal multiple access (NOMA) with cooperative SATCOM systems in this paper. Under the condition of fixed total transmit power, an optimization problem is formulated to maximize the sum-rate with the variables of power allocation factors. In order to solve this non-convex optimization problem, the particle swarm optimization (PSO) algorithm is applied with an optimal power allocation strategy. Simulation results show that the proposed NOMA-PSO scheme outperforms existing orthogonal multiple access (OMA) approach.
AB - Due to the limited frequency and energy resources, cooperative satellite communication (SATCOM) systems have been widely studied. To improve the spectrum efficiency further, we propose to combine non-orthogonal multiple access (NOMA) with cooperative SATCOM systems in this paper. Under the condition of fixed total transmit power, an optimization problem is formulated to maximize the sum-rate with the variables of power allocation factors. In order to solve this non-convex optimization problem, the particle swarm optimization (PSO) algorithm is applied with an optimal power allocation strategy. Simulation results show that the proposed NOMA-PSO scheme outperforms existing orthogonal multiple access (OMA) approach.
KW - Non-orthogonal multiple access (NOMA)
KW - PSO algorithm
KW - cooperative satellite communication systems
KW - power allocation
UR - https://www.scopus.com/pages/publications/85046349798
U2 - 10.1109/WCSP.2017.8170912
DO - 10.1109/WCSP.2017.8170912
M3 - 会议稿件
AN - SCOPUS:85046349798
T3 - 2017 9th International Conference on Wireless Communications and Signal Processing, WCSP 2017 - Proceedings
SP - 1
EP - 6
BT - 2017 9th International Conference on Wireless Communications and Signal Processing, WCSP 2017 - Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 9th International Conference on Wireless Communications and Signal Processing, WCSP 2017
Y2 - 11 October 2017 through 13 October 2017
ER -