Performance Evaluation of MRC Systems Over Sub-Terahertz MFTR Fading Channels

IF 3.7 3区计算机科学 Q2 TELECOMMUNICATIONS

IEEE Communications Letters Pub Date : 2024-09-06 DOI:10.1109/LCOMM.2024.3455798

Nathaly Orozco Garzón;Henry Carvajal Mora;Fernando Almeida García;José Vega-Sánchez;Diana Moya Osorio

引用次数: 0

Abstract

We analyze the outage probability (OP), ergodic capacity (EC), and average bit error probability (ABEP) of L-branch diversity systems using maximal-ratio-combining (MRC) over Multi-cluster-Fluctuating-Two-Ray (MFTR) fading channels, a model well-suited for sub-terahertz bands. We derive exact OP, EC, and ABEP expressions. For this latter metric, we assume M-ary quadrature amplitude modulation (M-QAM), and we also perform its asymptotic analysis to obtain the coding gain and diversity order. Unlike previous works for simpler fading models, our expressions retain consistent complexity regardless of the number of MRC branches and depend on functions available in standard mathematical software. The results show that coding gain relies on fading distribution parameters, L, and M. Meanwhile, diversity order is determined by multiplying L with the number of multipath clusters in the MFTR model.

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亚太赫兹 MFTR 消隐信道上的 MRC 系统性能评估

我们分析了在多簇-波动-双射线（MFTR）衰落信道（一种非常适合亚太赫兹频带的模型）上使用最大比值组合（MRC）的 L 分支分集系统的中断概率（OP）、遍历容量（EC）和平均比特误差概率（ABEP）。我们推导出精确的 OP、EC 和 ABEP 表达式。对于后一种度量，我们假定采用 M-ary 正交振幅调制（M-QAM），并对其进行渐近分析，以获得编码增益和分集阶数。与以往针对更简单的衰减模型的研究不同，我们的表达式保持了一致的复杂性，而与 MRC 分支的数量无关，并且依赖于标准数学软件中可用的函数。结果表明，编码增益取决于衰减分布参数 L 和 M。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

IEEE Communications Letters 工程技术-电信学

CiteScore

8.10

自引率

7.30%

发文量

590

审稿时长

2.8 months

期刊介绍： The IEEE Communications Letters publishes short papers in a rapid publication cycle on advances in the state-of-the-art of communication over different media and channels including wire, underground, waveguide, optical fiber, and storage channels. Both theoretical contributions (including new techniques, concepts, and analyses) and practical contributions (including system experiments and prototypes, and new applications) are encouraged. This journal focuses on the physical layer and the link layer of communication systems.