Design and Evaluation of an RFID Localization System based on Read Count. Issue 4 (19th May 2023)

• Record Type: Journal Article
• Authors: Hadj-Mihoub-Sidi-Moussa, El Hachemi; Touhami, Rachida; Tedjini, Smail
• Is Part Of: IETE journal of research. Volume 69:Issue 4(2023)
• Page Start: 1985
• Page End: 1994
• Publication Date: 2023-05-19
• Subjects: Localization RFID -- Presence probability -- Read count -- Reference tags; Electronics -- Periodicals; Telecommunication -- Periodicals; Electronics; Telecommunication; Periodicals; 621.38
• DOI: 10.1080/03772063.2021.1880341
• Languages: English
• ISSNs: 0377-2063

Abstract

Abstract : In this paper, we propose a new robust algorithm to improve the localization accuracy without using additional materials. This algorithm is based on a probabilistic approach which only uses the read count (number of detection) of reference and target tags. The localization is performed through two steps. The first step consists of estimating a local position of object tags in a given zone, while in the second step, all estimated local positions are used to calculate one global position. Furthermore, a complementary study concerning the influence of reference tags positions, the movement nature and the coverage of the work area is presented and discussed. For the proof of concept, a series of tests were elaborated with the proposed localization system created comprising conventional passive EPCglobal Class-1 Gen-2 UHF RFID tags, a commercial UHF RFID reader and a laptop. Measurements are carried out in an indoor environment where the 5.5 m×1.25 m measurement zone was placed on drywalls. The experimental results show that the present algorithm gives higher localization accuracy than the conventional ones.