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Broadcast is one of the most fundamental services in WSNs. In asynchronous WSNs which every node has different wake/sleep schedule, the broadcast protocol may be achieved by multiple unicasts. Moreover, in the duty-unaware asynchronous networks which the nodes do not know when their neighbors wake up, it is difficult to realize the broadcast protocol. In our paper, we propose a new broadcast protocol...
This article studys the reliability of communication of single hop link between neighboring nodes. To research the integrality of flooding routing, a mathematical model is built by means of Markov chain and possibility, then we provide an algorithm for reliability of a whole wireless sensor network via the theoretical deduction. It solves the problem of forecasting reliability of communications of...
Estimating the reliability and lifetime distribution of wireless sensor network is very useful in various applications. This problem is known to be NP-hard. In this paper, we present a hexagon tessellation sensor network model with role assignment scheme and estimate the reliability and lifetime distribution by employing a new improved Monte Carlo scheme which incorporates both simulation and analytic...
Sensing connectivity and sensor coverage in sensor networks are two fundamental issues, which have been extensively addressed in the literature. The reliability of wireless sensor networks (WSN) depends on both network connectivity and sensing coverage. Most existing work on sensing coverage has focused on the full coverage problem. However, in some application scenarios, full coverage is either impossible...
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