Sliding-Mode and Spring-Relaxation-Like Technique for Location Estimation in Wireless Sensor Networks

Abstract EN

In order to reduce the location estimation error in wireless sensor network (WSN), a localization algorithm is proposed combining sliding-mode and spring-relaxation-like techniques for wireless sensor networks in this paper.

Our proposed method takes advantage of the spring-relaxation technique.

The overall accuracy of the location estimations is improved by sliding-mode technique.

The convergence of the proposed algorithm is proved using the convergence conditions of discrete sliding-mode.

Moreover, it requires only a few beacons with known locations to compute the location estimations of all sensors.

Simulation examples demonstrate the overall accuracy of the proposed method.