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Session 8A: Coverage and Connectivity
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Title:
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Directed Coverage in Wireless Sensor Networks: Concept and Quality
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Author(s):
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Xiaole Bai, The Ohio State University, USA ; Lei Ding, The Ohio State University, USA; Jin Teng, Shanghai Jiao Tong University, P.R. China; Changqing Xu, Shanghai Jiao Tong University, P.R. China; Dong Xuan, The Ohio State University, USA
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Abstract:
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In this paper, we define a new type of coverage for wireless sensor networks, called Directed Coverage (D-Coverage). Basically, D-Coverage is the coverage provided by a sensor network monitoring an area between two boundaries, through which an intruder attempts to penetrates the area. The concept of D-coverage encompasses the fundamental nature of a wide spectrum of surveillance based sensor networks that are deployed to detect and monitor unauthorized access to critical facilities like power plants, detention facilities etc. from the outside world. In this paper, we conduct a systematical evaluation study on the quality of DCoverage in sensor networks. Our first evaluation approach is a projection-based simple approach, while our second approach is a more comprehensive Markov chain based approach. Performance data show that our evaluation approaches can accurately evaluate the quality of D-coverage and provide good guidelines for sensor networks deployment and run-time repair.
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