A novel barrier coverage scheme of WSN based on trajectory prediction

For barrier coverage issue of wireless sensor network, we propose a deployment scheme of sensor nodes for intrusion objects whose trajectory could be predicted. We provide the theoretical foundations for our scheme, and then analyze availability and reasonableness of our proposal from the perspective of the algorithm. This program only needs to activate nodes which are on the maximum probability path to achieve the goal of object detection with minimal number of nodes. That is to say, we form a barrier for intruders in the rectangular area with sensor nodes, and then track the intruder. The advantages of this program are to reduce the number of active nodes and shorten the activation time of nodes so as to improve the lifetime of a wireless sensor network in a large scale.