TCP-UB: A New Congestion Aware Transmission Control Protocol Variant
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Authors
Elmannai, Wafa
Razaque, Abdul
Elleithy, Khaled M.
Issue Date
2012-07
Type
Article
Language
en_US
Keywords
Transmission control protocol (TCP) , TCP UB , TCP Westwood , TCP Vegas , Mobility , Bandwidth estimation
Alternative Title
Abstract
Transmission control protocol (TCP) is a connection oriented protocol for several types of distributed applications. TCP is reliable particularly for traditional fixed networks. With emergence of faster wireless networks, TCP has been performing poorly in its original format. The performance of TCP is affected due to assorted factors including congestion window, maximum packet size, retry limit, recovery mechanism, backup mechanism and mobility. To overcome deficiency of original TCP, Several modifications have been introduced to improve network quality. The mobility is a major hurdle in degrading the performance of mobile wireless networks. In this paper, we introduce and implement new TCP variant University of Bridgeport (UB) that combines the features of TCP Westwood and Vegas. We examine the performance of TCP-UB, Vegas and Westwood using different realistic scenarios. NS2 simulator demonstrates the stability of TCP-UB as compared with TCP Vegas and Westwood in highly congested networks from the mobility point of view.
Description
Citation
Publisher
AIRCC Publishing