The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. ex. Some numerals are expressed as "XNUMX".
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The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. Copyrights notice
Um mecanismo de controle de congestionamento baseado em feedback é essencial para realizar um serviço eficiente de transferência de dados em redes compactadas. TCP (Transmission Control Protocol) é um mecanismo de controle de congestionamento baseado em feedback e tem sido amplamente utilizado na Internet atual. Uma versão melhorada do TCP chamada TCP Vegas foi proposta e estudada na literatura. Pode alcançar melhor desempenho que o TCP Reno. Em estudos anteriores, foi realizada análise de desempenho de um mecanismo de controle de fluxo baseado em janela baseado em TCP Vegas apenas para uma topologia de rede simples. Neste artigo, estendemos a análise para uma topologia de rede genérica onde cada conexão pode ter um atraso de propagação diferente e atravessar múltiplos links gargalos. Primeiro derivamos valores de equilíbrio dos tamanhos das janelas das conexões TCP e do número de pacotes aguardando no buffer de um roteador. Também derivamos o rendimento de cada conexão TCP em estado estacionário e investigamos o efeito dos parâmetros de controle do TCP Vegas na imparcialidade entre as conexões TCP. Apresentamos então vários exemplos numéricos, mostrando como os parâmetros de controle do TCP Vegas devem ser configurados para alcançar estabilidade e melhor desempenho transitório.
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Keiichi TAKAGAKI, Hiroyuki OHSAKI, Masayuki MURATA, "Analysis of a Window-Based Flow Control Mechanism Based on TCP Vegas in Heterogeneous Network Environment" in IEICE TRANSACTIONS on Communications,
vol. E85-B, no. 1, pp. 89-97, January 2002, doi: .
Abstract: A feedback-based congestion control mechanism is essential to realize an efficient data transfer service in packed-switched networks. TCP (Transmission Control Protocol) is a feedback-based congestion control mechanism, and has been widely used in the current Internet. An improved version of TCP called TCP Vegas has been proposed and studied in the literature. It can achieve better performance than TCP Reno. In previous studies, performance analysis of a window-based flow control mechanism based on TCP Vegas only for a simple network topology has been performed. In this paper, we extend the analysis to a generic network topology where each connection is allowed to have a different propagation delay and to traverse multiple bottleneck links. We first derive equilibrium values of window sizes of TCP connections and the number of packets waiting in a router's buffer. We also derive throughput of each TCP connection in steady state, and investigate the effect of control parameters of TCP Vegas on fairness among TCP connections. We then present several numerical examples, showing how control parameters of TCP Vegas should be configured for achieving both stability and better transient performance.
URL: https://global.ieice.org/en_transactions/communications/10.1587/e85-b_1_89/_p
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@ARTICLE{e85-b_1_89,
author={Keiichi TAKAGAKI, Hiroyuki OHSAKI, Masayuki MURATA, },
journal={IEICE TRANSACTIONS on Communications},
title={Analysis of a Window-Based Flow Control Mechanism Based on TCP Vegas in Heterogeneous Network Environment},
year={2002},
volume={E85-B},
number={1},
pages={89-97},
abstract={A feedback-based congestion control mechanism is essential to realize an efficient data transfer service in packed-switched networks. TCP (Transmission Control Protocol) is a feedback-based congestion control mechanism, and has been widely used in the current Internet. An improved version of TCP called TCP Vegas has been proposed and studied in the literature. It can achieve better performance than TCP Reno. In previous studies, performance analysis of a window-based flow control mechanism based on TCP Vegas only for a simple network topology has been performed. In this paper, we extend the analysis to a generic network topology where each connection is allowed to have a different propagation delay and to traverse multiple bottleneck links. We first derive equilibrium values of window sizes of TCP connections and the number of packets waiting in a router's buffer. We also derive throughput of each TCP connection in steady state, and investigate the effect of control parameters of TCP Vegas on fairness among TCP connections. We then present several numerical examples, showing how control parameters of TCP Vegas should be configured for achieving both stability and better transient performance.},
keywords={},
doi={},
ISSN={},
month={January},}
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TY - JOUR
TI - Analysis of a Window-Based Flow Control Mechanism Based on TCP Vegas in Heterogeneous Network Environment
T2 - IEICE TRANSACTIONS on Communications
SP - 89
EP - 97
AU - Keiichi TAKAGAKI
AU - Hiroyuki OHSAKI
AU - Masayuki MURATA
PY - 2002
DO -
JO - IEICE TRANSACTIONS on Communications
SN -
VL - E85-B
IS - 1
JA - IEICE TRANSACTIONS on Communications
Y1 - January 2002
AB - A feedback-based congestion control mechanism is essential to realize an efficient data transfer service in packed-switched networks. TCP (Transmission Control Protocol) is a feedback-based congestion control mechanism, and has been widely used in the current Internet. An improved version of TCP called TCP Vegas has been proposed and studied in the literature. It can achieve better performance than TCP Reno. In previous studies, performance analysis of a window-based flow control mechanism based on TCP Vegas only for a simple network topology has been performed. In this paper, we extend the analysis to a generic network topology where each connection is allowed to have a different propagation delay and to traverse multiple bottleneck links. We first derive equilibrium values of window sizes of TCP connections and the number of packets waiting in a router's buffer. We also derive throughput of each TCP connection in steady state, and investigate the effect of control parameters of TCP Vegas on fairness among TCP connections. We then present several numerical examples, showing how control parameters of TCP Vegas should be configured for achieving both stability and better transient performance.
ER -