Performance evaluation of threshold-based control mechanism for Vegas TCP in heterogeneous cloud networks. (29th March 2011)

• Record Type: Journal Article
• Authors: Cheng, Rung-Shiang; Shih, Ming-Yi; Yang, Chih-Chun
• Is Part Of: International journal of internet protocol technology. Volume 5:Number 4(2010)
• Page Start: 202
• Page End: 209
• Publication Date: 2011-03-29
• Subjects: Reno TCP -- unfairness -- heterogeneous networks -- performance evaluation -- threshold-based control -- Vegas TCP -- cloud networks -- cloud computing -- transmission control protocol -- congestion control; File Transfer Protocol (Computer network protocol) -- Periodicals; Multicasting (Computer networks) -- Periodicals; 004.678
• Languages: English
• ISSNs: 1743-8209

Abstract

Many studies have shown that Vegas TCP has a better throughput and stability than Reno TCP in homogeneous networks with a single TCP flavour, but performs less well in heterogeneous networks in which two-TCP flavours coexist. The progressive behaviour of Reno TCP and the conservative behaviour of Vegas TCP cause a bias when they are used simultaneously, and thus, Vegas TCP fails to obtain a fair share of the bandwidth. This paper examines the origins of this bias and proposes a threshold-based congestion control mechanism designed to alleviate the resulting unfairness problem. The simulation results show that the proposed scheme achieves a higher throughput than the conventional Vegas TCP scheme and preserves the stability of the conventional scheme when used in heterogeneous cloud networks.