基于SVC分层匹配度的异构网络节点选择算法

doi:10.3969/j.issn.1000-3428.2014.05.012

计算机工程

基于SVC分层匹配度的异构网络节点选择算法

唐朝伟¹，时豪¹，周旭²，白帆²，赵志峰³，严鸣¹

(1. 重庆大学通信工程学院，重庆 400044；2. 中国科学院声学研究所高性能网络实验室，北京 100190；3. 华数传媒网络有限公司，杭州 310007)

收稿日期:2013-02-22 出版日期:2014-05-15 发布日期:2014-05-14
作者简介:唐朝伟(1966－)，男，研究员、博士后，主研方向：移动互联网，互联网应用支撑技术，异构网络；时豪，硕士研究生；周旭，副研究员、博士；白帆，助理研究员、硕士研究生；赵志峰，博士；严鸣，硕士研究生。
基金资助:
国家自然科学基金资助项目“异构环境下基于可扩展视频编码P2P流媒体关键技术研究”(61102076/F010201)；国家发改委云计算示范工程基金资助项目“面向三网融合的媒体云综合运营系统建设”。

Peer Selection Algorithm of Heterogeneous Network Based on SVC Layering Matching Degree

TANG Chao-wei ¹, SHI Hao¹, ZHOU Xu ², BAI Fan ², ZHAO Zhi-feng ³, YAN Ming ¹

(1. College of Communication Engineering, Chongqing University, Chongqing 400044, China; 2. High Performance Network Lab, Institute of Acoustics, Chinese Academy of Sciences, Beijing 100190, China; 3. WaSu Media Network Limited Company, Hangzhou 310007, China)

Received:2013-02-22 Online:2014-05-15 Published:2014-05-14

摘要/Abstract

摘要： 随着移动互联网和三网融合的兴起，网络带宽及终端异构性造成所选节点视频和请求节点的终端能力不匹配。为此，提出一种基于可扩展视频编码(SVC)分层匹配度的节点选择算法。在异构网络背景下，综合考虑节点带宽和链路往返时延，将SVC分层层数和网络接入类型相结合。实验结果表明，与随机选择算法相比，该算法使得所选节点的SVC视频分层数与请求节点终端处理能力有较高的匹配度(固网、无线、3G接入网络类型所对应的匹配度分别为77.8，72.2，88.9)，并且具有较高的终端平均服务能力(PC为110、笔记本为78.3、手机为38.3)。

关键词: 节点选择, 对等网络, 可扩展视频编码, 异构网络, 可扩展视频编码分层匹配

Abstract: The rise of the mobile Internet and tri-networks integration brings a huge challenge to select resource peer for the requesting peer services in the Peer to Peer(P2P) streaming system. The video of the selected peer does not match terminal capabilities of the requesting peer because of network bandwidth and terminal heterogeneity. To solve this problem, a peer selection algorithm based on Scalable Video Coding(SVC) layering matching degree is proposed. Under the background of heterogeneous network, this algorithm combines the SVC layering layers and network access types, with a comprehensive consideration of peer bandwidth and link round-trip delay. Experimental results show that compared with the random selection algorithm, this algorithm contributes to a higher degree of matching SVC video layer of the selected peer with the terminal handling capacity of the requesting peer(the corresponding matching degrees of fixed network, wireless, 3G access network are 77.8, 72.2, and 88.9) and a higher terminal average service(PC is 110, notebook is 78.3, and mobile is 38.3).

Key words: peer selection, Peer to Peer(P2P) network, Scalable Video Coding(SVC), heterogeneous network, Scalable Video Coding (SVC) layering matching

中图分类号:

TP393.02

唐朝伟，时豪，周旭，白帆，赵志峰，严鸣. 基于SVC分层匹配度的异构网络节点选择算法[J]. 计算机工程, doi: 10.3969/j.issn.1000-3428.2014.05.012.

TANG Chao-wei, SHI Hao, ZHOU Xu, BAI Fan, ZHAO Zhi-feng, YAN Ming. Peer Selection Algorithm of Heterogeneous Network Based on SVC Layering Matching Degree[J]. Computer Engineering, doi: 10.3969/j.issn.1000-3428.2014.05.012.

http://www.ecice06.com/CN/Y2014/V40/I5/54

参考文献

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