Copula-Based Performance Analysis for Fluid Antenna Systems Under Arbitrary Fading Channels
Copula-Based Performance Analysis for Fluid Antenna Systems Under Arbitrary Fading Channels
复制标题
任意衰落信道下流体天线系统基于 Copula 的性能分析
DOI:
10.1109/lcomm.2023.3316359
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发表时间:
2023
期刊:
影响因子:
--
通讯作者:
Rostami Ghadi F
中科院分区:
文献类型:
--
作者:
Rostami Ghadi F
In this letter, we study the performance of a single-user fluid antenna system (FAS) under arbitrary fading distributions, in which the fading channel coefficients over the ports are correlated. We adopt copula theory to model the structure of dependency between fading coefficients. Specifically, we first derive an exact closed-from expression for the outage probability in the most general case, i.e., for any arbitrary choice of fading distribution and copula. Afterwards, for an important specific case, we analyze the performance of the outage probability under correlated Nakagami-fading channels by exploiting popular Archimedean copulas, namely, Frank, Clayton, and Gumbel. The results confirm that the spatial correlation dependency structure for the FAS is a key factor to determine its performance, which is natively captured through the choice of copula.
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通讯作者:
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DOI:
10.1109/lcomm.2022.3222574
发表时间:
2023
期刊:
IEEE Communications Letters
影响因子:
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DOI:
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发表时间:
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期刊:
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影响因子:
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