基于FTN信令的OFDM的Turbo SIC乘权系数估计算法

2021 IEEE VTS 17th Asia Pacific Wireless Communications Symposium (APWCS) Pub Date : 2021-08-01 DOI:10.1109/APWCS50173.2021.9548723

Toshiharu Obara, Tsubasa Shobudani, M. Sawahashi, Y. Kishiyama

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引用次数: 1

摘要

本文提出了一种采用比奈奎斯特(FTN)信令更快的OFDM的turbo软干扰消除器(SIC)中，对干扰OFDM(正交频分复用)符号估计值乘以小于1的加权因子。计算机仿真结果表明，在多径瑞利衰落信道中，采用turbo码率分别为1/3和1/2的16QAM与基于循环预处理的OFDM相比，在满足目标平均分组误码率(BLER)的前提下，在相同的频谱效率水平下，通过对干扰OFDM符号估计值乘以0.8或0.9的加权因子，可以显著降低FTN信令所需的平均接收信噪比(SNR)。

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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BLER of Turbo SIC Multiplying Weighting Factor to Symbol Estimates for OFDM Using FTN Signaling

This paper proposes multiplying a weighting factor of less than one to the interfering orthogonal frequency division multiplexing (OFDM) symbol esti-mates in a turbo soft interference canceller (SIC) for OFDM applying faster-than-Nyquist (FTN) signaling. Computer simulation results show that by multiplying the weighting factor of 0.8 or 0.9 to the interfering OFDM symbol estimates, the required average received signal-to-noise ratio (SNR) satisfying the target aver-age block error rate (BLER) is decreased significantly assuming the same improvement level in the spectral eﬃciency of the FTN signaling compared to cyclic pre x based OFDM using 16QAM associated with the turbo coding rates of 1/3 and 1/2 in multipath Rayleigh fading channels.

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2021 IEEE VTS 17th Asia Pacific Wireless Communications Symposium (APWCS)

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