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We consider wireless sensor networks (WSNs) deployed in the plane for area surveillance against intrusion attacks. Sensor nodes often employ low-cost sensing and wireless communication modules that are prone to random failure especially when operated in harsh environments. To quantify the network's ability to monitor the area, we formalize the breach path detection reliability (BPDREL) problem that...
This paper deals with a resource sharing problem in wireless sensor networks (WSNs). The problem calls for identifying k data collection trees that can be managed by independent users to run applications requiring area coverage. The formalized problem, called k-balanced area coverage slices (k-BACS), calls for identifying an ensemble of k trees that share the sink node only (and no other node) in...
In this paper we formulate and analyze a model for assessing the reliability of a wireless sensor network (WSN) based on classifying the operating states of each node at any instant into one of three possible states: a state where both the sensing and wireless modules are operating, a state where only the wireless module is operating, and a state where the wireless module is failed. Thus, in the second...
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