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Sensors 2010, 10(9), 8215-8247; doi:10.3390/s100908215
Review

The Coverage Problem in Video-Based Wireless Sensor Networks: A Survey

1,2,*  and 1
1 DCA-CT-UFRN, Campus Universitário, Lagoa Nova, Universidade Federal do Rio Grande do Norte, 59072-970 Natal RN, Brazil; E-Mail: affonso@dca.ufrn.br 2 DTEC-UEFS, Av Transnordestina, S/N, Novo Horizonte, Universidade Estadual de Feira de Santana, 44036-900 Feira de Santana BA, Brazil
* Author to whom correspondence should be addressed.
Received: 10 July 2010 / Revised: 20 July 2010 / Accepted: 15 August 2010 / Published: 2 September 2010
(This article belongs to the Section Physical Sensors)
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Abstract

Wireless sensor networks typically consist of a great number of tiny low-cost electronic devices with limited sensing and computing capabilities which cooperatively communicate to collect some kind of information from an area of interest. When wireless nodes of such networks are equipped with a low-power camera, visual data can be retrieved, facilitating a new set of novel applications. The nature of video-based wireless sensor networks demands new algorithms and solutions, since traditional wireless sensor networks approaches are not feasible or even efficient for that specialized communication scenario. The coverage problem is a crucial issue of wireless sensor networks, requiring specific solutions when video-based sensors are employed. In this paper, it is surveyed the state of the art of this particular issue, regarding strategies, algorithms and general computational solutions. Open research areas are also discussed, envisaging promising investigation considering coverage in video-based wireless sensor networks.
Keywords: video-based wireless sensor networks; the coverage problem; directional sensing; sensor deployment; coverage metrics video-based wireless sensor networks; the coverage problem; directional sensing; sensor deployment; coverage metrics
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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MDPI and ACS Style

Costa, D.G.; Guedes, L.A. The Coverage Problem in Video-Based Wireless Sensor Networks: A Survey. Sensors 2010, 10, 8215-8247.

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