A Rang-free Node Location Algorithm Based on Wirless Sensor Network
Yubin Xu · Journal of Taiyuan University of Science and Technology · 2009
Aimed at node location,a low traffic load algorithm to locate the node is designed in the wireless sensor network.In this algorithm,the network areas are divided into some same grids firstly.According to the receive strength of signal,we got the initial narrower location area.Then,on basis of DV-Hop algorithm,we build some Apollonius Circles using hop count ratio,and finally get the location through calculation.This algorithm can run without special hardware.The experiment results show that the traffic load decreases to 33% of DV-Hop's,and average positioning accuracy is below 29%,when the anchor proportion is about 30% and network is connective.