E-TCP: enhanced TCP for IEEE802.11e mobile ad hoc networks

Consolée Mbarushimana*, Ali Shahrabi

*Corresponding author for this work

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

6 Citations (Scopus)

Abstract

TCP, the facto standard used in today's Internet, has been found to perform poorly in Mobile Ad Hoc Networks (MANETs). This is exacerbated by contention with increasing UDP-based high priority multimedia traffic and the class differentiation introduced in current QoS protocols, which results into TCP starvation and increased spurious timeouts. In this paper, we propose a cross-layer TCP enhancement (E-TCP) that makes use of TCP bidirectionality to avoid TCP traffic starvation and spurious retransmissions in presence of high priority traffic. E-TCP is based on prioritizing TCP acknowledgement packets and on adjusting TCP retransmission timer based on the medium contention. Our simulation results reveal considerable improvements in TCP performance in terms of gooput, delay and retransmission efficiency, while the better channel utilization results into even better high priority traffic performance.

Original languageEnglish
Title of host publication2009 15th International Conference on Parallel and Distributed Systems
PublisherIEEE
Pages632-639
Number of pages8
ISBN (Print)9780769539003
DOIs
Publication statusPublished - 22 Jan 2010
Event15th International Conference on Parallel and Distributed Systems (ICPADS 09) - Guangdong, China
Duration: 8 Dec 200911 Dec 2009

Publication series

NameProceedings of the International Conference on Parallel and Distributed Systems - ICPADS
ISSN (Print)1521-9097

Conference

Conference15th International Conference on Parallel and Distributed Systems (ICPADS 09)
Abbreviated titleICPADS 09
Country/TerritoryChina
CityGuangdong
Period8/12/0911/12/09

Keywords

  • 802.11e
  • EDCA
  • QoS
  • Spurious
  • TCP

ASJC Scopus subject areas

  • Hardware and Architecture

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