Nodes deployment algorithm based on perceived probability of heterogeneous wireless sensor network

Wireless sensor network nodes deployment optimization problem is studied and wireless sensor nodes deployment determines its capability and lifetime. A heterogeneous wireless sensor network nodes deployment algorithm based on the perceived probability model aiming at the heterogeneous wireless sensor network nodes which are random deployed is designed in this article. The perceived probability model is used to calculate the perceived probability in the area around the heterogeneous wireless sensor nodes and transform virtual force algorithm. The algorithm moves the heterogeneous wireless sensor nodes to the low perceived probability area and achieves the maximum coverage of the monitoring area. The simulation result shows this deployment algorithm achieves the goal of the nodes reasonable distribution with improving the network coverage effect and reducing the nodes movement distance thus extends the lifetime of heterogeneous wireless sensor network.