异构网络多路径并行传输吞吐量建模

doi:10.3969/j.issn.1001-2400.2012.03.027

J4 ›› 2012, Vol. 39 ›› Issue (3): 166-171+184.doi: 10.3969/j.issn.1001-2400.2012.03.027

异构网络多路径并行传输吞吐量建模

郑艳伟^1,2;倪宏²;刘磊²

(1. 中国科学院研究生院，北京 100049；
2. 中国科学院声学研究所国家网络新媒体工程技术研究中心，北京 100190)

收稿日期:2011-03-08 出版日期:2012-06-20 发布日期:2012-07-03
通讯作者: 郑艳伟
作者简介:郑艳伟(1985-)，男，中国科学院博士研究生，E-mail: zhengyw@dsp.ac.cn．
基金资助:
国家高技术研究发展计划(863)“融合网络业务体系的开发”资助项目(2011AA01A102);国家科技支撑计划“支持增强型搜索功能的三屏融合服务运行平台”资助项目(2011BAH11B04)

Modeling of the throughput of CMT in heterogeneous networks

ZHENG Yanwei^1,2;NI Hong²;LIU Lei²

(1. Graduate School of Chinese Academy of Sci., Beijing 100049， China;
2. National Network New Media Eng. Research Center, Inst. of Acoustics Chinese Academy of Sci., Beijing 100190， China)

Received:2011-03-08 Online:2012-06-20 Published:2012-07-03
Contact: ZHENG Yanwei

摘要/Abstract

摘要：

在分析多路径并行传输特点的基础上，提出了一种异构网络多路径并行传输吞吐量的建模方法．通过引入状态转换概率矩阵对各条路径慢启动阶段和拥塞避免阶段的拥塞窗口增长机制进行分析，从而估算多路径并行传输的吞吐量; 然后合并拥塞窗口值相同的状态，将对应的状态转换概率相加，从而降低了模型的计算复杂度．仿真和实验表明，即使在路径特性不同时，该方法也能准确估算多路径并行传输吞吐量的变化，在异构网络环境下具有较强的适用性．

关键词: 异构网络, 多路径并行传输, 吞吐量, 拥塞窗口

Abstract:

Based on analyzing the characteristics of concurrent multipath transfer (CMT), this paper proposes a throughput modeling method for CMT in heterogeneous networks. In order to estimate the throughput of CMT, it uses the state transition probability matrix to analyze the growth mechanisms of the congestion window in the slow-start and congestion avoidance stage of each path. It also puts forward an optimization algorithm, which reduces the complexity of the model by merging the states with the same congestion window size and adding the corresponding state transition probabilities. Experimental results show that the proposed method can accurately estimate the throughput of CMT even if the paths have different features, and that it can work well under the heterogeneous network environment.

Key words: heterogeneous network, concurrent multipath transfer, throughput, congestion window

中图分类号:

TP393

郑艳伟;倪宏;刘磊. 异构网络多路径并行传输吞吐量建模[J]. J4, 2012, 39(3): 166-171+184.

ZHENG Yanwei;NI Hong;LIU Lei. Modeling of the throughput of CMT in heterogeneous networks[J]. J4, 2012, 39(3): 166-171+184.

参考文献

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异构网络多路径并行传输吞吐量建模

Modeling of the throughput of CMT in heterogeneous networks

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