Comparison of MRC and SC techniques for OQAM/FBMC signals over combining NLD Rayleigh fading channel and IN for 5G

IF 3 3区计算机科学 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

Aeu-International Journal of Electronics and Communications Pub Date : 2024-07-02 DOI:10.1016/j.aeue.2024.155418

Ghanim A. Al-Rubaye

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引用次数: 0

Abstract

Maximal ratio combining (MRC) and selection combining (SC) diversity techniques enhance wireless communication networks’ reliability by mitigating fading effects and improving the signal-to-noise ratio (SNR) at the receiver. Hence, these techniques have a crucial impact on reducing the bit error rate (BER) and increasing the capacity of wireless communication systems. This paper introduces new exact mathematical formulas for the distribution of instantaneous SNR, BER and channel capacity per unit bandwidth (CpUB) for L-branch MRC and SC diversity receivers in offset quadrature amplitude modulation-based filter bank multi-carrier (OQAM/FBMC) systems for 5G wireless communication. Additionally, new formulations for BER and CpUB using the semi-analytical method have been derived. These formulas consider the combined effects of non-linear distortion from a high-power amplifier (NLD-HPA), the Rayleigh fading channel, and impulsive noise (IN). Monte-Carlo computer simulations verify the validity and accuracy of the derived theoretical instantaneous SNR, BER and CpUB across OQAM/FBMC-MRC and OQAM/FBMC-SC diversity system parameters, such as the number of branches (L), the input back-off (IBO) of NLD-HPA, and IN. According to the results of simulation modeling and a comparative analysis of performance, the OQAM/FBMC-MRC diversity system tends to have better BER performance and CpUB compared to the OQAM/FBMA-SC system in all scenarios.

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在 5G 的 NLD 瑞利衰落信道和 IN 上对 OQAM/FBMC 信号采用 MRC 和 SC 技术的比较

最大比组合（MRC）和选择组合（SC）分集技术通过减轻衰减效应和提高接收器的信噪比（SNR）来增强无线通信网络的可靠性。因此，这些技术对降低误码率 (BER) 和提高无线通信系统的容量有着至关重要的影响。本文介绍了用于 5G 无线通信的基于偏移正交调幅的滤波器组多载波（OQAM/FBMC）系统中 L 支路 MRC 和 SC 分集接收器的瞬时信噪比、误码率和单位带宽信道容量（CpUB）分布的新精确数学公式。此外，还利用半解析方法推导出了误码率和 CpUB 的新公式。这些公式考虑了大功率放大器（NLD-HPA）的非线性失真、瑞利衰减信道和脉冲噪声（IN）的综合影响。蒙特卡洛计算机仿真验证了得出的理论瞬时信噪比、误码率和 CpUB 在 OQAM/FBMC-MRC 和 OQAM/FBMC-SC 分集系统参数（如分支数 (L)、NLD-HPA 的输入背离 (IBO) 和 IN）上的有效性和准确性。根据仿真建模和性能对比分析的结果，在所有情况下，OQAM/FBMC-MRC 分集系统的误码率和 CpUB 均优于 OQAM/FBMA-SC 系统。

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

Aeu-International Journal of Electronics and Communications 工程技术-电信学

CiteScore

6.90

自引率

18.80%

发文量

292

审稿时长

4.9 months

期刊介绍： AEÜ is an international scientific journal which publishes both original works and invited tutorials. The journal''s scope covers all aspects of theory and design of circuits, systems and devices for electronics, signal processing, and communication, including: signal and system theory, digital signal processing network theory and circuit design information theory, communication theory and techniques, modulation, source and channel coding switching theory and techniques, communication protocols optical communications microwave theory and techniques, radar, sonar antennas, wave propagation AEÜ publishes full papers and letters with very short turn around time but a high standard review process. Review cycles are typically finished within twelve weeks by application of modern electronic communication facilities.