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http://dx.doi.org/10.3745/KIPSTC.2006.13C.3.353

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

Shin Young-Suk (국립한밭대학교 정보통신 전문대학원)
Kim Eun-Gi (국립한밭대학교 정보통신.컴퓨터공학부)
Publication Information
The KIPS Transactions:PartC / v.13C, no.3, 2006 , pp. 353-358 More about this Journal
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.
Keywords
TCP Vegas; RTT; Congestion Control; Forward; Backward; Delay Variation;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
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