A Simple Method for the Performance Analysis of Fluid Antenna Systems Under Correlated Nakagami-m Fading
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| Title: | A Simple Method for the Performance Analysis of Fluid Antenna Systems Under Correlated Nakagami-m Fading |
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| Authors: | Vega-Sanchez, Jose David, Urquiza-Aguiar, Luis, Paredes, Martha Cecilia Paredes, Moya Osorio, Diana |
| Source: | IEEE Wireless Communications Letters. 13(2):377-381 |
| Subject Terms: | Fading channels, Antennas, Signal to noise ratio, Correlation, Radio frequency, Power system reliability, Measurement, Asymptotic matching, fluid antenna system, Nakagami-m fading, spatial correlation, outage probability |
| Description: | By recognizing the tremendous flexibility of the emerging fluid antenna system (FAS), which allows dynamic reconfigurability of the location of the antenna within a given space, this letter investigates the performance of a single-antenna FAS over spatially correlated Nakagami- ${m}$ fading channels. Specifically, simple and highly accurate closed-form approximations for the cumulative density function of the FAS channel and the outage probability of the proposed system are obtained by employing a novel asymptotic matching method, which is an improved version of the well-known moment matching. With this method, the outage probability can be computed simply without incurring complex multi-fold integrals, thus requiring negligible computational effort. Finally, the accuracy of the proposed approximations is validated, and it is shown that the FAS can meet or even exceed the performance attained by the conventional maximal ratio combining (MRC) technique. |
| File Description: | electronic |
| Access URL: | https://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-202950 https://liu.diva-portal.org/smash/get/diva2:1853785/FULLTEXT01.pdf |
| Database: | SwePub |
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Nájsť tento článok vo Web of Science | Abstract: | By recognizing the tremendous flexibility of the emerging fluid antenna system (FAS), which allows dynamic reconfigurability of the location of the antenna within a given space, this letter investigates the performance of a single-antenna FAS over spatially correlated Nakagami- ${m}$ fading channels. Specifically, simple and highly accurate closed-form approximations for the cumulative density function of the FAS channel and the outage probability of the proposed system are obtained by employing a novel asymptotic matching method, which is an improved version of the well-known moment matching. With this method, the outage probability can be computed simply without incurring complex multi-fold integrals, thus requiring negligible computational effort. Finally, the accuracy of the proposed approximations is validated, and it is shown that the FAS can meet or even exceed the performance attained by the conventional maximal ratio combining (MRC) technique. |
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| ISSN: | 21622337 21622345 |
| DOI: | 10.1109/LWC.2023.3329794 |