Abstract
Network coverage of wireless sensor network (WSN) means how well the entire area of interest is being monitored by a deployed network. It depends on several factors including sensing model of a node. Node failure is an important issue in WSN. The sensor nodes are prone to be non-functional due to noise and battery energy depletion. In the literature, node failure has not been considered while studying coverage. In this paper, we investigate the impact of node failure on network coverage. The network coverage has been derived for three sensing models in the event of node failure.
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