利用多目标PSO优化的累积时延和信道容量联合优化的频谱切换算法  

Spectrum handoff method by using joint optimization of cumulative delay and channel capacity based on multi-objective PSO

作　　者：张煜培[1] 赵知劲[1,2] 郑仕链[2] ZHANG Yupei;ZHAO Zhijin;ZHENG Shilian(School of Telecommunication Engineering,Hangzhou Dianzi University,Hangzhou 310018,China;State Key Lab of Information Control Technology in Communication System of No.36 Research Institute,China Electronic Technology Corporation,Jiaxing 314001,China)

机构地区：[1]杭州电子科技大学通信工程学院,浙江杭州310018 [2]中国电子科技集团第36研究所通信系统信息控制技术国家级重点实验室,浙江嘉兴314001

出　　处：《电信科学》2018年第7期62-71,共10页Telecommunications Science

基　　金："十二五"国防预研项目(No.41001010401)~~

摘　　要：目前频谱切换中多以单目标优化设计目标信道,为了满足大容量实时传输要求,需要综合考虑累积切换时延和有效信道容量。对此构建了目标信道设计的多目标函数,提出了求解离散多目标优化问题的粒子群算法(DMOPSO),给出了种群编码、更新方式离散化设计。仿真结果表明,所提出的频谱切换算法得到的最优信道访问解集能够兼顾网络的实时性和高吞吐率,算法复杂度较低。At present, a single target optimization function is often used in channel design. While in order to meet the large capacity real-time transmission, it is necessary to consider the cumulative delay and channel capacity simultaneously. The multi-objective function of the target channel design was constructed, and discrete multi-objective particle swarm optimization algorithm（DMOPSO） was proposed to solve it. The discretization design of the population coding and updating was given. The simulation results show that the optimal channel set obtained by proposed spectrum handoff algorithm can take into account the real-time and high throughput of the network, while needing the low complexity.

关 键 词：多目标优化 频谱切换 累积时延 信道容量 粒子群优化 

分 类 号：TN911[电子电信—通信与信息系统]