A Heuristic to Deploy Directional Sensor Nodes in Wireless Sensor Networks

A group of directional sensors coordinate to form directional sensor network. Directional sensors have a limited angle of sensing and hence coverage is an important issue in directional sensor network. The sensors need to be deployed optimally to ensure maximum object coverage in the given area. In this paper, we propose a directional sensor deployment scheme. The sensors are placed based on the location information of the objects. In each round of the proposed method, the areas with high density of objects are identified and sensors are deployed. The location of the sensor is static and does not change in the lifetime of the network. Extensive simulations have been carried out to validate the proposed approach.