A mobility-based load control scheme in Hierarchical Mobile IPv6 networks

Sangheon Pack, Taekyoung Kwon, Yanghee Choi

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

By introducing a mobility anchor point (MAP), Hierarchical Mobile IPv6 (HMIPv6) reduces the signaling overhead and handoff latency associated with Mobile IPv6. In this paper, we propose a mobility-based load control (MLC) scheme, which mitigates the burden of the MAP in fully distributed and adaptive manners. The MLC scheme combines two algorithms: a threshold-based admission control algorithm and a session-to-mobility ratio (SMR)-based replacement algorithm. The threshold-based admission control algorithm gives higher priority to ongoing mobile nodes (MNs) than new MNs, by blocking new MNs when the number of MNs being serviced by the MAP is greater than a predetermined threshold. On the other hand, the SMR-based replacement algorithm achieves efficient MAP load distribution by considering MNs' traffic and mobility patterns. We analyze the MLC scheme using the continuous time Markov chain in terms of the new MN blocking probability, ongoing MN dropping probability, and binding update cost. Also, the MAP processing latency is evaluated based on the M/G/1 queueing model. Analytical and simulation results demonstrate that the MLC scheme outperforms other schemes and thus it is a viable solution for scalable HMIPv6 networks.

Original languageEnglish
Pages (from-to)545-558
Number of pages14
JournalWireless Networks
Volume16
Issue number2
DOIs
Publication statusPublished - 2010 Feb 1

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Keywords

  • Admission control algorithm
  • Hierarchical Mobile IPv6
  • Mobility anchor point
  • Mobility-based load control
  • Session-to-mobility ratio

ASJC Scopus subject areas

  • Information Systems
  • Computer Networks and Communications
  • Electrical and Electronic Engineering

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