Enhancing QoS Through Fluid Antenna Systems over Correlated Nakagami-m Fading Channels
Enhancing QoS Through Fluid Antenna Systems over Correlated Nakagami-m Fading Channels
复制标题
通过相关 Nakagami-m 衰落通道上的流体天线系统增强 QoS
DOI：
10.1109/wcnc51071.2022.9771633
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发表时间：
2022
期刊：
影响因子：
--
通讯作者：
T. Tsiftsis
中科院分区：
文献类型：
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作者：
Leila Tlebaldiyeva;G. Nauryzbayev;S. Arzykulov;A. Eltawil;T. Tsiftsis
流体天线系统（FAS）实现了机械柔性天线，为现代通信设备提供了适应性和灵活性。在这项工作中，我们提出了一个概念模型的单天线N端口（SANP）FAS空间相关Nakagami-m衰落信道，并比较它与传统的分集方案的中断概率。提出的FAS模型切换到最佳天线端口，类似于选择合并（SC）分集的操作。FAS通过天线端口选择来提高网络的服务质量（QoS）。FAS的优点是能够以空间信道相关性为代价将数百个天线端口适配到半波长天线尺寸中。仿真结果表明，与最大比合并、等增益合并和SC等传统分集方案相比，FAS在数十个天线端口上具有优越的上级中断概率性能。此外，本文还评估了陆地移动的相关Nakagami-m随机变量的新型概率和累积密度函数。
Fluid antenna systems (FAS) enable mechanically flexible antennas that offer adaptability and flexibility for modern communication devices. In this work, we present a conceptual model for a single-antenna N-port (SANP) FAS over spatially correlated Nakagami-m fading channels and compare it with the traditional diversity schemes in terms of outage probability. The proposed FAS model switches to the best antenna port and resembles the operation of a selection combining (SC) diversity. FAS improves the quality of service (QoS) of the network through antenna port selection. The advantage of FAS is the ability to fit hundreds of antenna ports into a half-wavelength antenna size at the cost of spatial channel correlation. Simulation results demonstrate the superior outage probability performance of FAS at several tens of antenna ports compared to the traditional diversity schemes such as maximum ratio combining, equal gain combining, and SC. Moreover, the novel probability and cumulative density functions for the land mobile correlated Nakagami-m random variates are evaluated in this paper.