Dynamic landmark triangles: A simple and efficient mechanism for inter-host latency estimation

  • Authors:
  • Zhihua Wen;Michael Rabinovich

  • Affiliations:
  • Electrical Engineering & Computer Science, Case Western Reserve University, United States;Electrical Engineering & Computer Science, Case Western Reserve University, United States

  • Venue:
  • Computer Networks: The International Journal of Computer and Telecommunications Networking
  • Year:
  • 2011

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Abstract

This paper describes a simple and efficient approach to estimate the network latency between arbitrary Internet hosts. We use three landmark hosts forming a triangle in two-dimensional space to estimate the distance between arbitrary hosts with simple trigonometrical calculations. To improve the accuracy of estimation, we dynamically choose the ''best'' triangle for a given pair of hosts using a heuristic algorithm. Experiments using several data sets of measured inter-host latencies, as well as a live Internet study, demonstrate the accuracy and efficiency of our approach.