Performance Improvement of TCP Vegas Using Estimation of End-to-End Forward/Backward Delay Variation 


Vol. 13,  No. 3, pp. 353-358, Jun.  2006
10.3745/KIPSTC.2006.13.3.353


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  Abstract

Unlike TCP Reno, TCP Vegas recognizes network congestion through the measuring of RTT (Round Trip Time) and decides the main congestion control parameters, such as Windows size. But, congestion avoidance scheme of Vegas poorly reflects asymmetric characteristics of packet path because TCP Vegas uses the measuring of RTT that reflects forward/backward packet transmission delay as a forward delay. The RTT can’t infer the forward/backward transmission delay variation because it only measures the packet’s turn around time. In this paper, We have designed and implemented a new Vegas congestion control algorithm that can distinguish forward/ backward network congestion. We have modified the source codes of TCP Vegas in Linux 2.6 kernel and verified their performance.

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[IEEE Style]

Y. S. Shin and E. G. Kim, "Performance Improvement of TCP Vegas Using Estimation of End-to-End Forward/Backward Delay Variation," The KIPS Transactions:PartC, vol. 13, no. 3, pp. 353-358, 2006. DOI: 10.3745/KIPSTC.2006.13.3.353.

[ACM Style]

Young Suk Shin and Eun Gi Kim. 2006. Performance Improvement of TCP Vegas Using Estimation of End-to-End Forward/Backward Delay Variation. The KIPS Transactions:PartC, 13, 3, (2006), 353-358. DOI: 10.3745/KIPSTC.2006.13.3.353.

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