A cross-layer design for TCP end-to-end performance improvement in multi-hop wireless networks

  • Authors:
  • Rung-Shiang Cheng;Hui-Tang Lin

  • Affiliations:
  • Department of Electrical Engineering, National Cheng Kung University, Taiwan;Department of Electrical Engineering and Institute of Computer Communication Engineering, National Cheng Kung University, No. 1, Ta-Hsueh Road, Tainan 701, Taiwan

  • Venue:
  • Computer Communications
  • Year:
  • 2008

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Abstract

This paper presents a cross-layer approach for improving TCP performance in IEEE 802.11 wireless channels. The proposed protocol, designated as TCP-CL, is essentially an extension of the original IEEE 802.11 standard and the TCP protocol. By making slight modifications to the legacy IEEE 802.11 MAC and TCP protocols, TCP-CL provides a significant improvement in the performance of TCP in multi-hop wireless environments. The performance of TCP-CL is compared with that of standard TCP-Reno schemes in terms of the achieved effective throughput. The numerical results reveal that TCP-CL achieves a significant improvement in the TCP transmission performance over multi-hop wireless networks.