用于脉冲OFDM的栅格解调器

2018 IEEE International Black Sea Conference on Communications and Networking (BlackSeaCom) Pub Date : 2018-06-01 DOI:10.1109/BlackSeaCom.2018.8433690

A. Rashich, A. Kislitsyn, S. Gorbunov

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引用次数: 13

摘要

提出了一种用于频谱效率高的脉冲型ofdm信号的栅格解调器。以一组最优脉冲作为约束于一定谱降率的优化问题的解，分析了其性能。我们考虑一般形式的脉冲形状，其持续时间等于ofdm符号持续时间。本文还提出了基于FEC的脉冲型OFDM网格解调的迭代版本。在相同FEC下，所提出的频谱高效脉冲型OFDM信号迭代解调的误码率性能与经典编码OFDM调制的误码率相当。所提算法的性能不依赖于子载波的数量。它们允许在OFDM中引入非正交性，以获得非常好的频谱特性和较小的误码率退化。

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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Trellis Demodulator for Pulse Shaped OFDM

A trellis demodulator for spectrally efficient pulse shaped OFDM-signals is proposed. Its' performance is analyzed for a set of optimal pulses obtained as the solution of the optimization problem with restriction to a certain spectrum reduction rate. We consider the pulse shapes of general form with duration equal to OFDM-symbol duration. The iterative version of trellis demodulator for pulse shaped OFDM with FEC is also proposed. The BER performance of proposed iterative demodulator of spectrally efficient pulse shaped OFDM signals is comparable with the one of classic coded OFDM modulation with the same FEC. The performance of proposed algorithms does not depend on the number of subcarriers. They allow to introduce non-orthogonality into OFDM to achieve very good spectral characteristics with small BER degradation.

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2018 IEEE International Black Sea Conference on Communications and Networking (BlackSeaCom)

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