改进NSGA-Ⅱ在无线MD视频中的应用  

Application of Improved NSGA-Ⅱ in Wireless MD Video

作　　者：江虹[1] 林明[1] 

机构地区：[1]西南科技大学信息工程学院,四川绵阳621010

出　　处：《通信技术》2009年第6期153-155,158,共4页Communications Technology

基　　金：COSTIND(A3120060264)

摘　　要：文章在传统NSGA-Ⅱ算法的基础上,提出了一种改进算法--NSNSGA-Ⅱ,并将其运用到AdHoc网络中进行多路径选择。仿真实验证明,在移动Ad Hoc网络中,使用NSNSGA-Ⅱ进行链路选择后处理多描述视频,比使用最短路径启发算法(SPTH)算法和NSGA-Ⅱ算法后处理视频,无论在提高峰值信噪比(PSNR)、降低丢包率(Drop Rate)和平均失真(Average Distortion)方面都有明显改善,证明了所提出的算法在进行多目标优化是有效的。Based on the traditional NSGA-Ⅱ, this paper presents an improved algorithm-NSNSGA-Ⅱ, which is used to choose multi-path in wireless ad hoc network. The simulation experiments show that using NSNSGA-Ⅱalgorithm to choose the paths for dealing with multi-description video is better thanusing SPTH and NSGA-Ⅱ. This improves the PSNR, reduces the drop rate and the average distortion, and proves the efficiency of the improved algorithm in optimizing multi-objective.

关 键 词：NSGA-Ⅱ AD HOC 多路径选择 多描述视频 

分 类 号：TN91[电子电信—通信与信息系统]