Improving End-to-End Performance of TCP over Mobile Internetworks

  • Authors:
  • R. Yavatkar;N. Bhagawat

  • Affiliations:
  • -;-

  • Venue:
  • WMCSA '94 Proceedings of the 1994 First Workshop on Mobile Computing Systems and Applications
  • Year:
  • 1994

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Abstract

Reliable tronsport protocols such as TCP use end-toendflow, congestion, and error control mechanisms to provide reliable delivery over an internetwork. However, the end-to-end performance of a TCP connection con suffer significant degradation in the presence of a wireless link. We are exploring alternatives for optimizing end-to-end performance of TCP connections qcross an internetwork consisting of both fixed and mobile networks. The central idea in our opproach is to tronsparently split an end-to-end connection into two separale connections; one over the wireless link and other over the wired poth. The connection over the wireless link mny either use regulor TCP or a specialized transport protocol optimized for better perfornwtnce over o wireless link. Our approach does not require any changes to the existing protocol software on stationary hosts. Results of a systematic performonce evalustion using both our approoch and regular TCP show that our approach yields significant performanceimprovements.