Wireless Multimedia Sensor nodes sense areas that are uncorrelated to the areas covered by radio neighbor 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 based on overlapped Field of View (FoV) areas. Today, for random deployments, dense networks of low cost, low resolution and low power multimedia nodes are preferred than sparse cases of high cost, high resolution and high power nodes. Overlapping FoVs in dense networks causes wasting power of system because of redundant sensing of area.
The main aim of the proposed clustering method is energy conservation and prolonging network lifetime. This aim is achieved
through coordination of nodes belonging to the same cluster in assigned tasks, avoiding redundant sensing or processing.
CitationAlaei, M.; Barceló Ordinas, J.M. Node clustering based on overlapping FoVs for wireless multimedia sensor networks. A: IEEE Wireless Communications and Networking Conference. "2010 IEEE Wireless Communications and Networking Conference". Sydney: 2010, p. 1-6.
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