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Journal of Mobile Communication
Year: 2010  |  Volume: 4  |  Issue: 3  |  Page No.: 86 - 90

Analyzing and Improving Performance of TCP over Mobile Ad-Hoc Networks Using TCP Aware Source Routing

S. Kannan, Ishwarya, S. Karthik and V.P. Arunachalam    

Abstract: In a mobile ad-hoc network, temporary link failures and route changes occur frequently. With the assumption that all packet losses are due to congestion, TCP performs poorly in such an environment. This study proposes a new mechanism called TASR, TCP-aware source routing which can improve TCP performance in wireless ad-hoc networks. TASR adds a hold state to an existing routing protocol to reduce consecutive timeouts, retransmissions and out-of-ordered packets in TCP. In the simulation study, TASR achieves up to a 60% improvement in performance without requiring any TCP stacks in end systems to be modified.

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