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This paper addresses the coverage area and lifetime related issues arise in the building structural monitoring system. The monitoring system consists of a large number of sensor nodes for collecting structural health information. Out of many topologies, the sparse topology was extensively used in sensor network applications. The lifetime of the wireless sensor network is a fundamental issue because it determines the whole system aliveness. The objective of this article is to investigate the network lifetime and compare the computational results of different kinds of topology construction protocols to find optimum lifetime protocol for extending the monitoring system lifetime. The proposed dense network is capable of turnoff unnecessary node and provides the maximum sensing region, which prolong the network lifetime with minimum cost compare to sparse. In the proposed approach, each sensor node dynamically adjust transmission rage with keeping maximum connectivity and minimum consumption. The result shows that the dense topology would be a good choice for monitoring building structural health damage.

Lifetime measure of dense and sparse topology sensor network in structural health monitoring