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.
This work has been supported by the European Commission through grant FP7-2007-2-224053 (CONET), and the MASQOTS FCT project.
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Fotouhi, H., Zuniga, M., Alves, M., Koubaa, A., Marrón, P. (2012). Smart-HOP: A Reliable Handoff Mechanism for Mobile Wireless Sensor Networks. In: Picco, G.P., Heinzelman, W. (eds) Wireless Sensor Networks. EWSN 2012. Lecture Notes in Computer Science, vol 7158. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-28169-3_9
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DOI: https://doi.org/10.1007/978-3-642-28169-3_9
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