On the Performance of NOMA Systems Over α-F Channels With Beam Misalignment

IF 5.5 3区计算机科学 Q1 COMPUTER SCIENCE, INFORMATION SYSTEMS IEEE Wireless Communications Letters Pub Date : 2025-01-24 DOI:10.1109/LWC.2025.3533620

Pedro H. D. Almeida;Hugerles S. Silva;Ugo S. Dias;Higo T. P. Silva;Wamberto J. L. Queiroz;Felipe A. P. de Figueiredo;Héctor Poveda;Rausley A. A. de Souza

引用次数: 0

Abstract

This letter investigates the performance of non-orthogonal multiple access (NOMA) systems over the

$\alpha $

$\mathcal {F}$

channels with beam misalignment, considering imperfect successive interference cancelation. Firstly, a new and exact expression is derived for the probability density function (PDF) of the instantaneous signal-to-noise ratio of an arbitrary NOMA user. The PDF is used to find the exact pairwise error probability (PEP) and its asymptotic counterpart. Furthermore, the achievable theoretical diversity gains and the bit error rate union bound are analyzed. Monte Carlo simulation results are presented to support the derived analytical expressions and provide valuable insights into each user’s error rate performance.

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带波束失调的α-F信道NOMA系统性能研究

本文研究了具有波束失调的$\alpha $ - $\mathcal {F}$信道上的非正交多址（NOMA）系统的性能，并考虑了不完美的连续干扰抵消。首先，导出了任意NOMA用户瞬时信噪比的概率密度函数（PDF）的新的精确表达式；PDF用于找到精确的成对错误概率（PEP）及其渐近对应。进一步分析了可实现的理论分集增益和误码率联合界。蒙特卡罗模拟结果支持推导出的解析表达式，并对每个用户的错误率性能提供了有价值的见解。

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 Wireless Communications Letters Engineering-Electrical and Electronic Engineering

CiteScore

12.30

自引率

6.30%

发文量

481

期刊介绍： IEEE Wireless Communications Letters publishes short papers in a rapid publication cycle on advances in the state-of-the-art of wireless communications. 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 wireless communication systems.