Smart-HOP: A Reliable Handoff Mechanism for Mobile Wireless Sensor Networks

  • Hossein Fotouhi
  • Marco Zuniga
  • Mário Alves
  • Anis Koubaa
  • Pedro Marrón
Part of the Lecture Notes in Computer Science book series (LNCS, volume 7158)

Abstract

Handoff processes, the events where mobile nodes select the best access point available to transfer data, have been well studied in cellular and WiFi networks. However, wireless sensor networks (WSN) pose a new set of challenges due to their simple low-power radio transceivers and constrained resources. This paper proposes smart-HOP, a handoff mechanism tailored for mobile WSN applications. This work provides two important contributions. First, it demonstrates the intrinsic relationship between handoffs and the transitional region. The evaluation shows that handoffs perform the best when operating in the transitional region, as opposed to operating in the more reliable connected region. Second, the results reveal that a proper fine tuning of the parameters, in the transitional region, can reduce handoff delays by two orders of magnitude, from seconds to tens of milliseconds.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2012

Authors and Affiliations

  • Hossein Fotouhi
    • 1
  • Marco Zuniga
    • 2
  • Mário Alves
    • 1
  • Anis Koubaa
    • 1
    • 3
  • Pedro Marrón
    • 2
  1. 1.CISTER Research UnitPolytechnic Institute of Porto, ISEP-IPPPortugal
  2. 2.Network Embedded Systems GroupUniversity of Duisburg-EssenGermany
  3. 3.COINS Research GroupAl-Imam M. bin Saud UniversitySaudi Arabia

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