An Improved Outliers Detection Algorithm for Received Signal Strength Measurements in Building Environment

Abstract

Abstract. In this paper, we propose a new algorithm to detect outliers for RSS measurements in building environment. RSS measurements fluctuate severely in complex building environment because multi-path, obstacles, and moving people, can distort the propagation of radio wave, which leads to some inevitable large values in RSS measurement, known as outliers. Some classical outliers detection algorithm fail to detect them when outliers rate is higher. Based on this observation, we proposed a modified Hample filter algorithm to detect outliers. Simulation results show that our proposed algorithm can overcome the fluctuation of RSS in building localization environment.