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Smart-HOP: a reliable handoff mechanism for mobile wireless sensor networks
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Resumo(s)
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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Springer