计算机工程与应用2017，Vol.53Issue(18)：1-6,6.DOI:10.3778/j.issn.1002-8331.1705-0273
认知无线网适用于视频的分簇路由算法
Cluster-based routing algorithm for video transmission over cognitive radio networks
摘要
Abstract
Spectrum resource has become increasingly scarce in recent years, and research on cognitive radio networks has attracted much attention. Video streaming has the feature of delay-sensitive and high bandwidth demands, so routing scheme design is challenging. This paper proposes a cluster-based routing method for video streaming in dynamic spec-trum environment. Considering the spectrum heterogeneity and dynamic allocation feature, this paper analyzes the opti-mal scale of clustering to minimize the distortion in transmission, and proposes an importance based cluster-head selec-tion strategy, a spectrum aware multimedia routing algorithm is designed. Simulation experiments show that, the algo-rithm obtains ideal PSNR for multimedia sources through the cluster-based method, can provide reliable visual effect and Quality of Service(QoS)guarantee.关键词
认知无线网/视频流/分簇/服务质量/图像组Key words
cognitive radio network/video streaming/clustering/Quality of Service(QoS)/group of picture分类
信息技术与安全科学引用本文复制引用
曹静,武君胜..认知无线网适用于视频的分簇路由算法[J].计算机工程与应用,2017,53(18):1-6,6.基金项目
陕西省科技厅自然科学基础研究项目(No.2015JM6347). （No.2015JM6347）
