Iqbal, Mudasser M.; Gondal, Iqbal and Dooley, Laurence S.
HUSEC: A heuristic self configuration model for wireless sensor networks.
Computer Communications, 30(7),
The Network State Beacons (NSB) exchange rate is the critical parameter in monitoring the dynamic state of any self-conﬁguring ad hoc sensor network. Along with the network state and the overhead control traﬃc, it determines both the time and nature of any proactive reconﬁguration activity that is necessary to counteract any degradation in network performance. While traditionally selected at random, this rate of beacon exchange signiﬁcantly aﬀects the accuracy with which the variations in network state are tracked. It is therefore imperative to adapt this rate to the variation in load proﬁle and attempt to maintain its value within predeﬁned bounds which can be optimised to keep the network operating quiescently, while conforming to its various Quality-of-Service (QoS) requirements. This paper presents a novel, heuristic self-conﬁguration (HUSEC) model which addresses this optimisation problem. The simulation results conﬁrm that the model reconﬁgures the network more eﬀectively to not only achieve higher throughput, but also greater network integrity, with minimal control traﬃc and resource overheads.
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