On the Level Crossing Rate of Fluid Antenna Systems
On the Level Crossing Rate of Fluid Antenna Systems
复制标题
关于流体天线系统的水平穿越率
DOI：
10.48550/arxiv.2205.01711
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发表时间：
2022
期刊：
影响因子：
--
通讯作者：
I. Krikidis
中科院分区：
文献类型：
--
作者：
Priyadarshi Mukherjee;C. Psomas;I. Krikidis
多输入多输出（MIMO）技术通过提供非凡的性能提升，对无线通信产生了重大影响。然而，在MIMO系统中，最小天线间空间限制不允许其集成在有限空间的设备中。在这种情况下，流体天线系统（FASs）的概念似乎是一个有效的解决方案，因为没有这种限制。本文研究了这类FASs的平均水平交叉率（LCR）。具体地说，我们推导了这种系统的LCR的封闭形式的解析表达式，并且广泛的蒙特卡罗模拟验证了所提出的分析框架。此外，我们还证明了在一定条件下，所获得的LCR与传统的基于选择组合的接收器的LCR一致。最后，数值结果也提供了有关选择适当的参数，提高系统性能的见解。
Multiple-input multiple-output (MIMO) technology has significantly impacted wireless communication, by providing extraordinary performance gains. However, a minimum inter-antenna space constraint in MIMO systems does not allow its integration in devices with limited space. In this context, the concept of fluid antenna systems (FASs) appears to be a potent solution, where there is no such restriction. In this paper, we investigate the average level crossing rate (LCR) of such FASs. Specifically, we derive closed-form analytical expressions of the LCR of such systems and extensive Monte-Carlo simulations validate the proposed analytical framework. Moreover, we also demonstrate that under certain conditions, the LCR obtained coincides with that of a conventional selection combining-based receiver. Finally, the numerical results also provide insights regarding the selection of appropriate parameters that enhance the system performance.