继电器
粒子群优化
计算机科学
选择(遗传算法)
最大化
节点(物理)
数学优化
中继信道
最优化问题
信噪比(成像)
帧中继的链路访问程序
作者
Jinlong Cao,Tiankui Zhang,Zhimin Zeng
出处
期刊:Wireless Personal Multimedia Communications
日期:2012-12-31
卷期号:: 648-652
被引量:8
摘要
Multi-relay selection scheme for cooperative relaying considering the signal to noise ratio (SNR) maximization and power efficiency optimization is proposed in this paper. In cooperative relay networks, the selected relay nodes have great impact on the system performance. It is an optimization problem for best cooperative relay node number and which relay nodes are selected. The exhaustive search can solve this problem but the complexity will increase exponentially with the network size, i.e., the number of relays in the network. This paper proposes two novel quantum particle swarm optimization (QPSO) based relay selection schemes with the SNR optimization target and power efficiency target respectively. Simulation results show that the QPSO-based multi-relay selection scheme has the ability to search global optimal solution compared with other multi-relay selection algorithm in literature.
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