Experimental studies of high-accuracy RFID localization with channel impairments

Eric Pauls; Yimin D. Zhang

doi:10.1117/12.2178249

21 May 2015 Experimental studies of high-accuracy RFID localization with channel impairments

Eric Pauls, Yimin D. Zhang

Proceedings Volume 9497, Mobile Multimedia/Image Processing, Security, and Applications 2015; 94970I (2015) https://doi.org/10.1117/12.2178249
Event: SPIE Sensing Technology + Applications, 2015, Baltimore, MD, United States

Abstract

Radio frequency identification (RFID) systems present an incredibly cost-effective and easy-to-implement solution to close-range localization. One of the important applications of a passive RFID system is to determine the reader position through multilateration based on the estimated distances between the reader and multiple distributed reference tags obtained from, e.g., the received signal strength indicator (RSSI) readings. In practice, the achievable accuracy of passive RFID reader localization suffers from many factors, such as the distorted RSSI reading due to channel impairments in terms of the susceptibility to reader antenna patterns and multipath propagation. Previous studies have shown that the accuracy of passive RFID localization can be significantly improved by properly modeling and compensating for such channel impairments. The objective of this paper is to report experimental study results that validate the effectiveness of such approaches for high-accuracy RFID localization. We also examine a number of practical issues arising in the underlying problem that limit the accuracy of reader-tag distance measurements and, therefore, the estimated reader localization. These issues include the variations in tag radiation characteristics for similar tags, effects of tag orientations, and reader RSS quantization and measurement errors. As such, this paper reveals valuable insights of the issues and solutions toward achieving high-accuracy passive RFID localization.

Citation Download Citation

Eric Pauls and Yimin D. Zhang "Experimental studies of high-accuracy RFID localization with channel impairments", Proc. SPIE 9497, Mobile Multimedia/Image Processing, Security, and Applications 2015, 94970I (21 May 2015); https://doi.org/10.1117/12.2178249

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available