TY  - INPR
AV  - public
SN  - 2162-2337
Y1  - 2024/06/19/
TI  - Performance Analysis of FAS-Aided Backscatter Communications
UR  - https://doi.org/10.1109/LWC.2024.3416700
ID  - discovery10194089
N2  - In this letter, we study the performance of backscatter communications (BC) over the position-flexible fluid antenna system (FAS) technology. We consider a situation where a single fixed-antenna source sends information to a FAS reader through the wireless forward (i.e., source-to-tag) and backscatter (i.e., tag-to-reader) channels. We first derive the cumulative distribution function (CDF) of the equivalent channel at the FAS receiver, and obtain closed-form expressions for the outage probability (OP) and the delay outage rate (DOR) assuming a correlated Rayleigh distribution. To gain more insights into the system performance, we present analytical expressions of the diversity order, OP and DOR in the high signal-to-noise ratio (SNR) regime. Numerical results reveal that FAS at the reader can significantly improve the performance of BC compared with a fixed-antenna reader.
N1  - This version is the author-accepted manuscript. For information on re-use, please refer to the publisher?s terms and conditions.
JF  - IEEE Wireless Communications Letters
PB  - Institute of Electrical and Electronics Engineers (IEEE)
A1  - Ghadi, Farshad Rostami
A1  - Kaveh, Masoud
A1  - Wong, Kai-Kit
A1  - Zhang, Yangyang
KW  - Backscatter communication
KW  -  correlated fading channel
KW  - 
fluid antenna system
KW  -  outage probability
ER  -