A geometrical sink-based cooperative coverage hole recovery strategy for WSNs

Publication Type:
Conference Proceeding
Citation:
2015, 9th International Conference on Signal Processing and Communication Systems, ICSPCS 2015 - Proceedings, 2015
Issue Date:
2015-01-01
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© 2015 IEEE. Unlike sporadic node failures, coverage holes emerging from multiple temporally-correlated node failures can severely affect quality of service in a network and put the integrity of entire wireless sensor networks at risk. Conventional topology control schemes addressing such undesirable topological changes have usually overlooked the status of participating nodes in the recovery process with respect to the deployed sink node(s) in the network. In this paper, a cooperative coverage hole recovery model is proposed which utilises the simple geometrical procedure of circle inversion. In this model, autonomous nodes consider their distances to the deployed sink node(s) in addition to their local status, while relocating towards the coverage holes. By defining suitable metrics, the performance of our proposed model performance is compared with a force-based approach.
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