An adaptive network mobility support protocol in hierarchical mobile IPv6 networks

Sangheon Pack, Taekyoung Kwon, Yanghee Choi, Eun Kyoung Paik

Research output: Contribution to journalArticlepeer-review

45 Citations (Scopus)


The network mobility (NEMO) basic support protocol provides collective mobility for a group of nodes in vehicular area networks. Since the NEMO basic support protocol always performs the same operations, regardless of a mobile network's characteristics, it cannot achieve optimal performance. We propose an adaptive NEMO support protocol based on Hierarchical Mobile IPv6. The proposed protocol jointly optimizes binding update (BU) traffic and tunneling overhead by employing the adaptive BU strategy, depending on the session-to-mobility ratio (SMR). Specifically, both the mobile router (MR) and the visiting mobile nodes (VMNs) configure two care-of-addresses: 1) on-link care-of-address (LCoA) and 2) regional care-of-address (RCoA). If the SMR is lower than a predefined threshold, the MR and VMNs perform RCoA and LCoA BU procedures to their home agents (HAs), respectively. Otherwise, LCoA and RCoA BU procedures are conducted by the MR and VMNs, respectively. Via analytical models, we evaluate the performance of the adaptive NEMO support protocol against other NEMO support protocols and derive the optimal SMR threshold. Numerical results demonstrate that the adaptive NEMO support protocol is a valuable solution for promising NEMO applications.

Original languageEnglish
Pages (from-to)3627-3639
Number of pages13
JournalIEEE Transactions on Vehicular Technology
Issue number7
Publication statusPublished - 2009

Bibliographical note

Funding Information:
Manuscript received February 21, 2006; revised July 23, 2007, April 3, 2008, August 23, 2008, and November 24, 2008. First published February 18, 2009; current version published August 14, 2009. This work was supported in part by the Ministry of Knowledge Economy/Institute of Information Technology Assessment through the IT R&D Program under Grant 2007-F-038-02 (Fundamental Technologies for the Future Internet) and the ITRC Program under Grant IITA-2008-C1090-0803-0004. The review of this paper was coordinated by Prof. Y.-B. Lin.

Copyright 2009 Elsevier B.V., All rights reserved.


  • Adaptive binding update (BU)
  • Hierarchical Mobile IPv6 (HMIPv6)
  • Network mobility (NEMO)
  • Performance analysis
  • Session-to-mobility ratio (SMR)

ASJC Scopus subject areas

  • Automotive Engineering
  • Aerospace Engineering
  • Applied Mathematics
  • Electrical and Electronic Engineering


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