全通信速率下4 × 4 OFDM降噪与误码率的改进Turbo编码

2019 4th International Conference on Information Systems and Computer Networks (ISCON) Pub Date : 2019-11-01 DOI:10.1109/ISCON47742.2019.9036206

A. Vishwakarma, P. Jain, Namrata Sahayam, Kanchan Cecil

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引用次数: 1

摘要

在本研究中，我们发现了非线性失真的结果，并详细讨论了由发射/接收滤波组成的多输入多输出系统中由高功率放大器(HPA)引起的相位失真。结果表明，MIMO和SISO系统的非线性失真影响有所不同。然后我们从之前的论文中找出了约束和不足。在精确分析的基础上，提出了一种新的基于涡轮编码器的相位补偿器。在正交频分复用(OFDM)中，一种适当的解决方案可以更好地补偿ISI和ICI的频谱再增长，星座扭曲，本文在基于正交频分OFDM的MIMO通信中使用独特的Turbo编码来减少衰落和ICI。可用的MIMO-Turbo编码不能以全速率工作，因此建议的工作将使用空间频率块分割(SFBD)来提供更好的正交性，而不是空时块编码(STBC)。

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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A Modified Turbo Coding for Reduction of FADING&BER in 4x4 OFDM with Full Rate of Communication-Implementation

In this study, we have found the outcome of nonlinear distortion, in this case phase distortion which is caused by High Power Amplifier (HPA) in Multi Input Multi Output System which consists of transmit/ receive filtering is scrutinized in detail. It is shown that nonlinear distortion impact in MIMO and SISO system is somewhat different. Then we figured out the constraints & Inadequacy from preceding papers. A new turbo encoder based phase compensator is proposed based on precise analysis. In Orthogonal Frequency Division Multiplexing (OFDM) an appropriate solution which provides better compensation of spectrum re-growth, constellation warping for ISI & ICI, the presented work uses a unique Turbo coding in Orthogonal Frequency Division OFDM based MIMO communication for fading&ICI reduction, Available MIMO-Turbo encoding are not working at full rate hence proposed work will use Space Frequency Block division (SFBD)to provide better orthogonality instead of Space-Time Block Coding (STBC).

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来源期刊

2019 4th International Conference on Information Systems and Computer Networks (ISCON)

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