Increasing Coverage in Wireless Sensor Networks by Minimizing Displacements Using a Greedy Method based on Nodes’ Location and Neighborhood
The successful operation of a wireless sensor network depends on the proper coverage of the environment, which in turn is affected by the number and location of sensors. In general , when the sensors are deployed randomly , the initial coverage is not high . One of the major challenges for network design is to determine the placement strategy of the sensors so that the deployed nodes can cover as m any regions as possible. On the other hand, the power supply of each sensor node is a non - rechargeable battery. Th erefore, t he objective of this study is to solve th e coverage problem in such a way that the energy consumption of the nodes is minimal , too . The proposed approach uses division and detection of uncovered regions. Then a greedy method based on the topology and properties of the nodes and the network deployment region is presented to select the optimal nodes and cover the region. The proposed approach is simulated and the evaluation results show a decrease in the displacement of the sensors for more coverage and a reduction in energy consumption compared to similar works.
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