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TCP Over Multihop 802.11 Networks: Issues and Performance Enhancement

Overview Analyzing TCP operation over 802.11 multihop ad hoc networks involves a cross-layer study. This paper investigates the effect of congestion and MAC contention on the interaction between TCP and on-demand ad hoc routing protocol in the 802.11 ad hoc networks. The paper reveals several problems stemming from lack of coordination and sharing in such networks. It is observed that TCP induces the over-reaction of routing protocol and hurts the quality of end-to-end connection. So, one of the critical sources of lowering TCP throughput lies in the TCP window mechanism itself. To fix this problem, a fractional window increment (FeW) scheme for TCP is proposed to prevent the over reaction of the on-demand routing protocol by limiting TCP's aggressiveness.

Further White Paper Details
Publisher	Association for Computing Machinery	File Format	PDF
Date Published	May 2005	Downloads	4
Format	White Papers
Topics	N/A

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