Localization Research about the Node without Identifies for the Sparse WSN Environment

Abstract

For the problem of nodes without identifies and quantity in the environment of wireless sensor network, a new route model of mobile anchor node is provided. The model composed of the one heavy path and the three heavy path. The paper first is to obtain the optimal path through traversing all of the fixed virtual anchor nodes using the model of TSP, and then enters the three heavy path while anchor node sense the unknown nodes in the one heavy path. After have received the three numbers of RSSI data, the anchor node returned to one heavy path. Finally, the location and numbers of the unknown nodes will be obtained after generalize all of the nodes using iterative methods. The experimental results show that, in the case of the unknown nodes distributed sparse, the proposed path model can reduce the redundant path and the moving time, which reached the goal of the high precision of location.