A Method for Coverage Optimization in Wireless Multimedia Sensor Networks

Wireless Multimedia Sensor Networks (WMSNs) are composed of the number of video, audio, and scalar sensors which the proposed method is investigated on sensors equipped to cameras. In this paper a new method distributed is introduced for enhancing the environmental multimedia sensing coverage and recording in wireless multimedia sensor networks. In the proposed method nodes are prioritized and selected for rotating and replacement based on the sensing overlaps; the node with more overlapping areas, has higher priority. The goal is to enhance coverage ratio with reduction of multimedia node overlap. The prioritizing table is updated after each execution of the algorithm in order to select the best node. The proposed method of prioritizing, rotation, and movement, improve the capability of energy conservation and also coverage ratio in the network. The results of implementation and comparison with other methods show which the proposed method improves network coverage with the least imposing of nodes movement and rotation.