Issues and improvements in TCP performance over multihop wireless networks

Beizhong Chen, Ivan Marsic, Ray Miller

Research output: Chapter in Book/Report/Conference proceedingConference contribution

5 Scopus citations

Abstract

TCP performance in contention-based multi-hop wireless networks is shaped by two main factors, which are unlike the wired network case. First, the maximum throughput for a given topology and flow pattern is reached at an optimal congestion window. We provide an improved analysis of this effect. Second, the control traffic uses higher proportion of the channel bandwidth than in the wired case. Our results show that the much smaller TCP ACKpackets consume channel resource comparable to the much longer data packets, over high-speed connections. Motivated by this understanding, we reformulate and enhance an existing idea for improving TCP performance by further lowering the number of control packets. Extensive simulations show that our strategy increases the TCP throughput up to 205% compared to the regular TCP, in long-hop wireless networks and 35% in a complex network.

Original languageEnglish (US)
Title of host publicationProceedings of the 2008 IEEE Sarnoff Symposium, SARNOFF
DOIs
StatePublished - Aug 14 2008
Event2008 IEEE Sarnoff Symposium, SARNOFF - Princeton, NJ, United States
Duration: Apr 28 2008Apr 30 2008

Publication series

NameProceedings of the 2008 IEEE Sarnoff Symposium, SARNOFF

Other

Other2008 IEEE Sarnoff Symposium, SARNOFF
CountryUnited States
CityPrinceton, NJ
Period4/28/084/30/08

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering

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    Chen, B., Marsic, I., & Miller, R. (2008). Issues and improvements in TCP performance over multihop wireless networks. In Proceedings of the 2008 IEEE Sarnoff Symposium, SARNOFF [4520055] (Proceedings of the 2008 IEEE Sarnoff Symposium, SARNOFF). https://doi.org/10.1109/SARNOF.2008.4520055