Relative delay estimator for multipath transport

  • Authors:

  • Fei Song;Hongke Zhang;Sidong Zhang;Fernando M.V. Ramos;Jon Crowcroft

  • Affiliations:

  • Beijing Jiaotong University / University of Cambridge, Beijing / Cambridge, China;Beijing Jiaotong University, Beijing, China;Beijing Jiaotong University, Beijing, China;University of Cambridge, Cambridge, Gt Britain;University of Cambridge, Cambridge, Gt Britain

  • Venue:
  • Proceedings of the 5th international student workshop on Emerging networking experiments and technologies
  • Year:
  • 2009

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Abstract

Due to the dynamic nature of the Internet, the characteristic parameters of network paths are continually changing. The round trip time (RTT) can be used to estimate retransmission timeouts with reasonable accuracy. However, using RTT to evaluate forward or backward delays is not suitable. By identifying this shortcoming, we propose a relative delay estimator (RDE) to make a distinction between all available paths and build a retransmission policy based on it.