TCP-sleek channel access scheduling for multi-hop mesh networks

Li Ping Tung*, Yeali S. Sun, Tzu Lin Huang, Meng Chang Chen

*Corresponding author for this work

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

Abstract

Wireless channel contention/interference problems combined with the constraints imposed by the TCP congestion control scheme have a severe impact on TCP throughput performance and fairness in a wireless mesh network. In this paper, we propose a TCPsleek spatial TDMA scheduling algorithm to construct a sleek data and ACK packet flowing environment for TCP flows along the wireless paths. The proposed scheme considers the TCP demands of individual directional links during channel access scheduling and time slot assignment to enable the TCP congestion control mechanisms to perform as effectively as they do in wired networks, irrespective of their spatial locations and the number of hops traversed. In addition, employing link-layer retransmission can effectively hide local transmission errors from the end-to-end TCP congestion control mechanisms. The simulation results demonstrate that, under the proposed scheme, the problem of unfair bandwidth sharing to long-hop TCP flows caused by wireless communication is successfully eliminated, and the throughput disparity between long- and short-hop TCP flows is also substantially reduced. The scheme also achieves high overall network throughput.

Original languageEnglish
Title of host publicationProceedings of the 2009 ACM International Wireless Communications and Mobile Computing Conference, IWCMC 2009
Pages360-364
Number of pages5
DOIs
StatePublished - 2009
Event2009 ACM International Wireless Communications and Mobile Computing Conference, IWCMC 2009 - Leipzig, Germany
Duration: 21 Jun 200924 Jun 2009

Publication series

NameProceedings of the 2009 ACM International Wireless Communications and Mobile Computing Conference, IWCMC 2009

Conference

Conference2009 ACM International Wireless Communications and Mobile Computing Conference, IWCMC 2009
CountryGermany
CityLeipzig
Period21/06/0924/06/09

Keywords

  • Fairness
  • Spatial TDMA channel access
  • TCP
  • Wireless mesh networks

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  • Cite this

    Tung, L. P., Sun, Y. S., Huang, T. L., & Chen, M. C. (2009). TCP-sleek channel access scheduling for multi-hop mesh networks. In Proceedings of the 2009 ACM International Wireless Communications and Mobile Computing Conference, IWCMC 2009 (pp. 360-364). (Proceedings of the 2009 ACM International Wireless Communications and Mobile Computing Conference, IWCMC 2009). https://doi.org/10.1145/1582379.1582458