Hybrid method uses RSS and AoA to establish a low-cost localization system

Abstract

The present paper proposes a method to implement a low-cost Localization System (LS) in a wireless sensor network (WSN) in open field. This method is based on RSS to obtain distance and angle values. Also this values are used to compute the position of the desired object, proposing the Localization by one Point (LboP) method. Although RSS values suffer alterations from different sources, in this paper several tests are performed in order to determine them and establish the limits. A prototype was developed enabling to run the necessary field tests. Preliminary results shows that is possible to measure distance and angle based on RSS values, but some concern must be taken to enable the system operation with a reliable performance.