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Self-Deployment of Randomly Scattered Mobile Sensors to Achieve Barrier Coverage
Abstract— Constructing sensor barrier is a critical issue in wireless sensor networks for military and homeland security applications, which aims to detect intruders crossing into a protected area. In this letter, we propose two distributed, localized deployment schemes for self-adjustment of randomly deployed mobile sensor nodes over a rectangular belt to form sensor barriers. Extensive simulations demonstrate the effectiveness of our proposed algorithms. NOWADAYS, coverage is an important research area in wireless sensor networks (WSNs). Broadly, there are three categories of coverage: barrier coverage, target coverage, and area coverage. In barrier coverage, sensor nodes have to form a barrier to detect intruders. Target coverage refers to monitoring fixed number of targets in a region of interest (ROI). Area coverage means that every single point within ROI must be monitored by at least one sensor node or by the joint detection of several sensor nodes. Most of the existing works are based on the problem of area coverage and very few works focus on the barrier coverage issues. In this letter, we propose two schemes for self-deployment of randomly scattered mobile sensor nodes to form a barrier across a rectangular belt region. The barrier coverage of a randomly deployed mobile sensor network on a rectangular area. We proposed two localized self-deployment algorithms. The simulation results demonstrated the effectiveness of our proposed algorithms as compared to LNRO algorithm. < final year projects >
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