Ghadi, Farshad Rostami;
Kaveh, Masoud;
Wong, Kai-Kit;
Zhang, Yangyang;
(2024)
Performance Analysis of FAS-Aided Backscatter Communications.
IEEE Wireless Communications Letters
10.1109/LWC.2024.3416700.
(In press).
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Abstract
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.
| Type: | Article |
|---|---|
| Title: | Performance Analysis of FAS-Aided Backscatter Communications |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1109/LWC.2024.3416700 |
| Publisher version: | https://doi.org/10.1109/LWC.2024.3416700 |
| Language: | English |
| Additional information: | This version is the author-accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
| Keywords: | Backscatter communication, correlated fading channel, fluid antenna system, outage probability |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Electronic and Electrical Eng |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10194089 |
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