Influence of parameters variation of TCP-Vegas in performance of congestion window over large bandwidth-delay networks

Ghassan A. Abed, Mahamod Ismail, Kasmiran Jumari

Research output: Chapter in Book/Report/Conference proceedingConference contribution

5 Citations (Scopus)

Abstract

Major challenge for TCP is to keep up the new and modern generation in communications networks such as networks with large bandwidth and long delay because when TCP applies on next generation networks will suffer from degradation in performance. The reason behind this shortcoming in performance is due to the congestion control mechanisms supported by TCP variants where these mechanisms depending on linear or exponential growth to increasing the transmission window. In TCP-Vegas, in spite of the performance degrades if applied in large bandwidth-large delay networks, but it can give acceptable performance when TCP receiver support delayed acknowledgment (ACK). Vegas congestion control algorithm developed in different manner and not support the same techniques used in other TCP source variants, because it minimizes the delay in connection queue and also provides a far less in loss of packets where that increase the throughput of network. This article presents results from a series of simulation experiments designed to study TCP Vegas performance in large bandwidth and large delay network model using NS-2 network simulator. The analysis and observation of Vegas behavior performed using the main two parameters, alpha and beta, to configure the congestion window (cwnd) phases. After used multiple values, the behavior of cwnd of TCP Vegas is very sensitive to the variation of the parameters values and then we got a wide variety results corresponding to parameters variation.

Original languageEnglish
Title of host publication17th Asia-Pacific Conference on Communications, APCC 2011
Pages434-438
Number of pages5
DOIs
Publication statusPublished - 2011
Event17th Asia Pacific Conference on Communications, APCC 2011 - Kota Kinabalu, Sabah
Duration: 2 Oct 20115 Oct 2011

Other

Other17th Asia Pacific Conference on Communications, APCC 2011
CityKota Kinabalu, Sabah
Period2/10/115/10/11

Fingerprint

Bandwidth
performance
Next generation networks
Telecommunication networks
Simulators
Throughput
Degradation
Experiments
communications
recipient
simulation
experiment
Values

Keywords

  • cwnd
  • Large bandwidth
  • NS-2
  • TCP-Vegas

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Communication

Cite this

Abed, G. A., Ismail, M., & Jumari, K. (2011). Influence of parameters variation of TCP-Vegas in performance of congestion window over large bandwidth-delay networks. In 17th Asia-Pacific Conference on Communications, APCC 2011 (pp. 434-438). [6152848] https://doi.org/10.1109/APCC.2011.6152848

Influence of parameters variation of TCP-Vegas in performance of congestion window over large bandwidth-delay networks. / Abed, Ghassan A.; Ismail, Mahamod; Jumari, Kasmiran.

17th Asia-Pacific Conference on Communications, APCC 2011. 2011. p. 434-438 6152848.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abed, GA, Ismail, M & Jumari, K 2011, Influence of parameters variation of TCP-Vegas in performance of congestion window over large bandwidth-delay networks. in 17th Asia-Pacific Conference on Communications, APCC 2011., 6152848, pp. 434-438, 17th Asia Pacific Conference on Communications, APCC 2011, Kota Kinabalu, Sabah, 2/10/11. https://doi.org/10.1109/APCC.2011.6152848
Abed GA, Ismail M, Jumari K. Influence of parameters variation of TCP-Vegas in performance of congestion window over large bandwidth-delay networks. In 17th Asia-Pacific Conference on Communications, APCC 2011. 2011. p. 434-438. 6152848 https://doi.org/10.1109/APCC.2011.6152848
Abed, Ghassan A. ; Ismail, Mahamod ; Jumari, Kasmiran. / Influence of parameters variation of TCP-Vegas in performance of congestion window over large bandwidth-delay networks. 17th Asia-Pacific Conference on Communications, APCC 2011. 2011. pp. 434-438
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