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Sensors 2010, 10(4), 3145-3169; doi:10.3390/s100403145
Article

A Method for Clustering and Cooperation in Wireless Multimedia Sensor Networks

*  and
Computer Architecture Department, Universitat Politècnica de Catalunya (UPC), Barcelona, Spain
* Author to whom correspondence should be addressed.
Received: 21 January 2010 / Revised: 23 February 2010 / Accepted: 12 March 2010 / Published: 31 March 2010
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Abstract

Wireless multimedia sensor nodes sense areas that are uncorrelated to the areas covered by radio neighbouring sensors. Thus, node clustering for coordinating multimedia sensing and processing cannot be based on classical sensor clustering algorithms. This paper presents a clustering mechanism for Wireless Multimedia Sensor Networks (WMSNs) based on overlapped Field of View (FoV) areas. Overlapping FoVs in dense networks cause the wasting of power due to redundant area sensing. The main aim of the proposed clustering method is energy conservation and network lifetime prolongation. This objective is achieved through coordination of nodes belonging to the same cluster to perform assigned tasks in a cooperative manner avoiding redundant sensing or processing. A paradigm in this concept, a cooperative scheduling scheme for object detection, is presented based on the proposed clustering method.
Keywords: Wireless Multimedia Sensor Network (WMSN); clustering; field of view; cooperation; energy conservation; object detection; scheduling Wireless Multimedia Sensor Network (WMSN); clustering; field of view; cooperation; energy conservation; object detection; scheduling
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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Alaei, M.; Barcelo-Ordinas, J.M. A Method for Clustering and Cooperation in Wireless Multimedia Sensor Networks. Sensors 2010, 10, 3145-3169.

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