University of Ottawa - Carleton University
Ottawa-Carleton Institute for Computer Science (OCICS) Presentation
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March 22, 2013 @ 10:00a.m.
Barrier Coverage in Wireless Sensor Networks
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Speaker: Xuelin Ma
Location: 240 TB (Tory Building) |
ABSTRACT
Barrier coverage is a critical issue in wireless sensor networks for various battlefield and homeland security applications. The goal is to effectively detect intruders that attempt to penetrate the region of interest. In a wireless sensor network, a barrier is formed by a set of sensors whose sensing ranges are contiguous and span across the monitored field. Compared to achieving full coverage, the number of sensors required for barrier coverage is much less. Hence barrier coverage is considered more scalable and attractive for large-scale deployment in practice.
However, most of the previous works have concentrated on the traditional scalar sensors networks. In order to provide much richer information of the environment, the increasing number of people start to focus on the camera sensor networks. Since cameras from different positions can generate quite different views of the object, simply combining the sensing range of a series of cameras across the monitored field does not provide effective barrier coverage. In this way, how to select camera sensors from a random or deterministic deployment to construct an effective camera barrier, as well as reduce the number of cameras used should be taken into consideration.
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