DefinePK

Abstract

This paper deals with the development and deployment of a wireless sensor network for monitoring locations of a mobile target in an indoor environment. The system uses received signal strength (RSS) measurements as the baseline for range determination. Although the RSSI based localization technology needs no additional hardware, the accuracy remains a big challenge because of the severe fading effects and multipath propagation in the indoor environments. This paper proposes a new method along with the Kalman filter in order to improve the localization accuracy. The system is tested for indoor environment. An error reduction of more than 50% is achieved in indoor environment.