The Improvement of Wireless Sensor Networks Node Location Algorithm in Extreme Environment

Abstract

WSN is a wireless network composed of quantities of sensor nodes in a self-organizing multi-hop mode. Its used for perceive, collect and handling the information data to the monitoring center or the terminal user, to realize the communication between “people and things” and “things and things”. Among them, position fixing technology is the basic technology of many applications of WSN. The using of sensor nodes for positioning is very valuable in many practical applications. This paper introduces a modified DV-Hop location algorithm without range measurement, which has the characteristics of high positioning accuracy, low cost, low energy consumption, etc., and has important practical significance. The simulation results show that the positioning accuracy will be higher, because the process is easy to improve the calculation, does not need to add additional hardware, so it has a strong applicability.