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Wireless Personal Communications

, Volume 43, Issue 3, pp 945–958 | Cite as

Multicasting with selective delivery: a SafetyNet for vertical handoffs

  • Henrik PetanderEmail author
  • Eranga Perera
  • Aruna Seneviratne
Article

Abstract

In the future, mobility support will require handling roaming in heterogeneous access networks. In order to enable seamless roaming it is necessary to minimize the impact of the vertical handoffs. Localized mobility management schemes such as Fast Handovers for Mobile IPv6 (FMIPv6) and Hierarchical Mobile IPv6 do not provide sufficient handoff performance, since they have been designed for horizontal handoffs. In this paper, we propose the SafetyNet protocol, which allows a Mobile Node to perform seamless vertical handoffs. Further, we propose the SafetyNet handoff timing algorithm, to enable a Mobile Node to delay or even completely avoid upward vertical handoffs. We implement the SafetyNet protocol and compare its performance with the FMIPv6 protocol in our wireless test bed and analyze the results. The experimental results indicate that the proposed SafetyNet protocol can provide an improvement of up to 95% for TCP performance in vertical handoffs, when compared with FMIPv6 and an improvement of 64% over FMIPv6 with bicasting. We use numerical analysis of the protocol to show that its over the air signaling and data transmission overhead is comparable to FMIPv6 and significantly smaller than that of FMIPv6 with bicasting.

Keywords

Vertical handoffs Fast Handovers for Mobile IPv6 Bicasting 

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Copyright information

© Springer Science+Business Media, LLC 2007

Authors and Affiliations

  • Henrik Petander
    • 1
    • 2
    Email author
  • Eranga Perera
    • 1
    • 3
  • Aruna Seneviratne
    • 1
  1. 1.National ICT AustraliaAustralian Technology ParkEveleighAustralia
  2. 2.Department of Computer ScienceHelsinki University of TechnologyEspooFinland
  3. 3.Department of Electrical Engineering and TelecommunicationsUniversity of New South WalesKensingtonAustralia

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