Low-Cost Indoor Localization Using Dual-Chip RFID Tag

IEEE Open Journal of Antennas and Propagation, vol. 5, pp. 1209–1220

Abstract

In this study, a low-cost dual-chip RFID tag antenna is proposed for indoor localization. The antenna integrates two RFID chips, each generating opposing radiation patterns. Angle-of-arrival based localization is performed with a single reader by analyzing the Received Signal Strength Indicator (RSSI) and the RSSI ratio of both chips. The antenna incorporates a mechanically adjustable reflector at the back that allows simple beam elevation control to tune the antenna for different indoor environments. The proposed dual-chip tag was measured in an indoor environment with different beam configurations. The localization is performed using a simple sinusoidal regression model with three model parameters and a linear regression model with two model parameters to fit the RSSI ratio of both chips and the RSSI of each individual chip, respectively. The proposed technique yields an average angle-of-arrival error better than 6.6∘ within the tag’s horizontal detection range of 4.2 meters.

Authors 6

1. Jawad Ali

   Trinity College Dublin · King Mongkut's University of Technology North Bangkok

   Affiliation as printed

   The Sirindhorn International Thai-German Graduate School of Engineering, King Mongkut’s University of Technology North Bangkok, Bangkok, Thailand

   School of Engineering, CONNECT Centre, Trinity College Dublin, Dublin, Ireland

2. Kamol Kaemarungsi

   National Science and Technology Development Agency · National Electronics and Computer Technology Center

   Affiliation as printed

   National Electronics and Computer Technology Center, National Science and Technology Development Agency, Pathum Thani, Thailand

3. Thipamas Phakaew

   King Mongkut's University of Technology North Bangkok

   Affiliation as printed

   The Sirindhorn International Thai-German Graduate School of Engineering, King Mongkut’s University of Technology North Bangkok, Bangkok, Thailand

4. Muhammad Uzair

   King Mongkut's University of Technology North Bangkok

   Affiliation as printed

   The Sirindhorn International Thai-German Graduate School of Engineering, King Mongkut’s University of Technology North Bangkok, Bangkok, Thailand

5. Adam Narbudowicz

   Wrocław University of Science and Technology · Trinity College Dublin

   Affiliation as printed

   CONNECT Centre, School of Engineering, Trinity College Dublin, Dublin 2, Ireland

   Wroclaw University of Science and Technology, Wroclaw, Poland

6. Suramate Chalermwisutkul Aachen Institute of High Frequency Technology

   King Mongkut's University of Technology North Bangkok · RWTH Aachen University

   Affiliation as printed

   The Sirindhorn International Thai-German Graduate School of Engineering, King Mongkut’s University of Technology North Bangkok, Bangkok, Thailand

   Institute of High Frequency Technology, RWTH Aachen University, Aachen, Germany