End-to-end Congestion Control for TCP-friendly Flows with Variable Data Rates  

作　　者：JIANG Ming YANG Qiang WU Chunming LI Ziqiang MIAO Yuting 

机构地区：[1]Institute of Software and Intelligent Technology, Hangzhou Dianzi University, Hangzhou 310018, China [2]College of Electrical Engineering, Zhejiang University, Hangzhou 310027, China [3]College of Computer Science and Technology, Zhejiang University, Hangzhou 310027, China

出　　处：《Chinese Journal of Electronics》2012年第3期541-546,共6页电子学报（英文版）

基　　金：Manuscript Received Mar. 2011; Accepted Apr. 2011o This work is supported by the National Natural Science Foundation of China （No.61070157, No.61070213）.

摘　　要：This paper presents recent new findings on the network resource utilization bias phenomenon in the context of TCP-friendly rate control （TFRC） protocol based data flows. It has been found that data flows with lower data rate could yield more than twice of the link uti- lization than flows with higher data rates under the circum- stance that multiple dta flows compete network resource in a shared bottleneck link, e.g. the access link bandwidth is greater than the bottleneck bandwidth. The study is carried out through extensive numerical experiments and a set of key results are presented. In this paper, we high- light and analysis the underlying reasons of the obtained results, and proposed a solution and assessed its perfor- mance through simulations. The aspects which could be further improved in the proposed solution have also been discussed.

关 键 词：TCP-friendly rate control （TFRC） Fair-ness Link utilization Buffer Input/output ratio. 

分 类 号：TP393[自动化与计算机技术—计算机应用技术] TN925.93[自动化与计算机技术—计算机科学与技术]