Digital Signal Processing for Faster-than-Nyquist Non-Orthogonal Systems: An Overview

2019 26th International Conference on Telecommunications (ICT) Pub Date : 2019-04-01 DOI:10.1109/ICT.2019.8798855

Ji Zhou, Mengqi Guo, Yaojun Qiao, Haide Wang, Long Liu, Weiping Liu, Changyuan Yu, Jianping Li, Zhaohui Li

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引用次数: 3

Abstract

In recent years, faster-than-Nyquist (FTN) nonorthogonal systems draw more attention for high-capacity communication systems. In this paper, we will introduce digital signal processing for eliminating interference in FTN nonorthogonal systems. FTN non-orthogonal systems can be divided into single-carrier FTN (SC-FTN) and multi-carrier FTN (MC-FTN) non-orthogonal systems. In SC-FTN non-orthogonal systems, joint algorithms will be studied for compensating the serious inter-symbol interference, including joint feed-forward equalizer, post filter and maximum likelihood sequence detection (MLSD) algorithm and joint frequency-domain equalizer and MLSD algorithm. In MC-FTN non-orthogonal systems, intercarrier interference is similar to the interference in multiple input multiple output (MIMO) systems. The interference cancellation algorithm for MIMO systems is also effective for MC-FTN non-orthogonal systems. We will introduce MIMO decoding to eliminate the interference in MC-FTN non-orthogonal systems.

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快于奈奎斯特非正交系统的数字信号处理综述

近年来，超奈奎斯特(FTN)非正交系统在大容量通信系统中受到越来越多的关注。本文将介绍在FTN非正交系统中消除干扰的数字信号处理方法。FTN非正交系统可分为单载波FTN (SC-FTN)和多载波FTN (MC-FTN)非正交系统。在SC-FTN非正交系统中，将研究补偿严重码间干扰的联合算法，包括联合前馈均衡器、后滤波和最大似然序列检测(MLSD)算法和联合频域均衡器和MLSD算法。在MC-FTN非正交系统中，载波间干扰类似于多输入多输出(MIMO)系统中的干扰。MIMO系统的干扰消除算法对MC-FTN非正交系统同样有效。我们将引入MIMO解码来消除MC-FTN非正交系统中的干扰。

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

2019 26th International Conference on Telecommunications (ICT)

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