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

Content Provider	IEEE Xplore Digital Library
Author	Abed, G.A. Ismail, M. Jumari, K.
Copyright Year	2011
Description	Author affiliation: Department of Electrical, Electronic & Systems Engineering, Faculty of Engineering & Built Environment, Universiti Kebangsaan Malaysia, UKM, 43600 UKM Bangi, Selangor Darul Ehsan, Malaysia (Abed, G.A.; Ismail, M.; Jumari, K.)
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.
Starting Page	434
Ending Page	438
File Size	106251
Page Count	5
File Format	PDF
ISBN	9781457703898
e-ISBN	9781457703904
DOI	10.1109/APCC.2011.6152848
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-10-02
Publisher Place	Malaysia
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Bandwidth Delay Throughput Network topology Receivers Topology Manganese NS-2 TCP-Vegas cwnd Large bandwidth
Content Type	Text
Resource Type	Article

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