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Performance Analysis of Passive UHF RFID Systems under Cascaded Fading Channels and Interference Effects


Type

Article

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Authors

Bekkali, A 
Zou, S 
Kadri, A 
Penty, RV 

Abstract

In this paper, the performance of monostatic and bistatic passive ultrahigh-frequency radio-frequency identification (UHF RFID) systems under the effects of cascaded fading channels and interference is studied. The performance metric used is tag detection probability defined as probability that the instantaneous received power is higher than the receiver’s sensitivity. A closed-form expression of the detection probability is derived using cascaded forward and backscatter fading channels and reader antennas orientation. Furthermore, the performance of passive RFID systems under reader-to-tag interference caused by both the desired RFID signal and multiple RFID interferers is analyzed, and the effect of constructive and destructive interferences is examined. In addition, the maximum reading range in ideal, multipath fading and interfering environments is presented. The obtained results are very useful for the design and optimization of passive RFID systems from RF point of view.

Description

Keywords

Passive UHF RFID, detection probability, cascaded fading channels, interference, reliable reading range

Journal Title

IEEE Transactions on Wireless Communications

Conference Name

Journal ISSN

1536-1276
1558-2248

Volume Title

14

Publisher

Institute of Electrical and Electronics Engineers (IEEE)
Sponsorship
Engineering and Physical Sciences Research Council (EP/H022384/1)
Engineering and Physical Sciences Research Council (EP/I028439/1)
This work was made possible by NPRP grant NPRP4-726-2-272 from the Qatar National Research Fund (a member of Qatar Foundation).