稳定噪声下DFT-S-OFDM系统的误码率性能

IF 3.7 3区计算机科学 Q2 TELECOMMUNICATIONS

IEEE Communications Letters Pub Date : 2025-02-10 DOI:10.1109/LCOMM.2025.3540214

Ruizhi Li;Guo Li;Peixin Zhang;Fengkui Gong

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引用次数: 0

摘要

作为一种重要的非高斯分布和脉冲噪声模型，稳定分布在信号处理中得到了广泛的应用，因为它的概率密度函数（PDF）在时域上具有与脉冲噪声样本相对应的重尾。本文推导了瑞利衰落信道上对称稳定（S $\ α $ S）噪声通过离散傅里叶变换-扩展-正交频分复用（DFT-S-OFDM）系统的几何功率，并进一步推导了具有S $\ α $ S噪声的瑞利衰落信道上DFT-S-OFDM系统的误码率（BER）。基于所提出的选择准则，将两种误码率近似模型联合应用于计算效率。仿真结果表明，在不同系统参数和脉冲噪声条件下，导出的理论误码和近似误码曲线与仿真误码曲线吻合良好。

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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Bit Error Rate Performance of DFT-S-OFDM Systems Under Alpha-Stable Noise

As a significant non-Gaussian distribution and impulsive noise model, alpha-stable distribution has been widely used in signal processing, since its probability density function (PDF) has heavy tails which corresponds with the impulsive noise samples in the time domain. In this letter, the geometric power of the symmetric alpha-stable (S

$\alpha $

S) noise passing through the Discrete Fourier Transform-Spread-Orthogonal Frequency Division Multiplexing (DFT-S-OFDM) systems on Rayleigh fading channles is derived and the bit error rate (BER) of the DFT-S-OFDM systems on Rayleigh fading channels with S

$\alpha $

S noise is further derived. Based on a proposed selection criterion, two approximation models of BER are jointly applied for computational efficiency. Simulation results demonstrate that the derived theoretical and approximate BERs both agree well with the simulated BER curves under various system parameters and impulsive noise conditions.

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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.