Algorithm for Selecting either an Overlay or Flat Route Based on the Amount of the Delay Measurement Load on the Home Agent in a Hierarchical Mobile IPv6 Network

  • Authors:

  • Hidetoshi Kobayashi;Kazumasa Takami

  • Affiliations:

  • Graduate school of Engineering, Soka University, Tokyo, Japan 192-8577;Graduate school of Engineering, Soka University, Tokyo, Japan 192-8577

  • Venue:
  • NEW2AN '08 / ruSMART '08 Proceedings of the 8th international conference, NEW2AN and 1st Russian Conference on Smart Spaces, ruSMART on Next Generation Teletraffic and Wired/Wireless Advanced Networking
  • Year:
  • 2008

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Abstract

In a Hierarchical Mobile IPv6 (HMIPv6), two alternative routes are available: a Home Agent (HA) route (overlay route), and a direct communication route (flat route), which does not pass through the HA and is determined using the Return Routability procedure. The flat route is not always optimal when handover frequencies are taken into consideration. Therefore, it is necessary to select either the overlay or flat rate based on the particular communication situation. This paper proposes a communication route selection algorithm that is suitable of an HMIPv6 configuration, in which the route to be used is selected based on the packet delay measurement of each route. The algorithm's effectiveness has been verified through a simulation of its operation, and the evaluation of the reduction in the number of delay measurement packets arriving at the HA.