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Proceedings Paper

Wireless TCP enhancements using multilevel ECN
Author(s): Mukundan Sridharan; Arjan Durresi; Chunlei Liu; Raj Jain
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Paper Abstract

Due to the increasing demand for mobility among the Internet users, there is a urgent requirement to identify and solve the deficiencies in the wireless domain. One such urgent problem is the poor performance of TCP over wireless links. TCP still being the only protocol used in the Internet for reliable transfers, the assumptions made by TCP in the wired domain are not valid in the wireless domain. To enhance the performace of the TCP in the wireless domain, we need to differentiate the 'congestion loss' from the 'wireless loss'. We find that the previous attempts in this direction make unjustified demands from the network or the accuracy of the schemes are inadequate. We are convinced that reliable transport is a end-to-end semantic and other networkcomp onents should not be burdened with this work. In this paper we propose a scheme called the 'Source-Centric Congestion Filtering', based on the MECN protocol, which tries to differentiate the losses based on the networkfeedback. Our simulations using the NS-2 simulator shows that our protocol has very less percentage of error and performs better than most of the other end-to-end TCP variants.

Paper Details

Date Published: 8 August 2003
PDF: 8 pages
Proc. SPIE 5245, Internet Quality of Service, (8 August 2003); doi: 10.1117/12.512261
Show Author Affiliations
Mukundan Sridharan, Ohio State Univ. (United States)
Arjan Durresi, Ohio State Univ. (United States)
Chunlei Liu, Ohio State Univ. (United States)
Raj Jain, Ohio State Univ. (United States)

Published in SPIE Proceedings Vol. 5245:
Internet Quality of Service
Mohammed Atiquzzaman; Mahbub Hassan, Editor(s)

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