WOLA处理:一个有用的工具，用于在5G中具有轻松同步性的窗口波形

2017 IEEE International Conference on Communications Workshops (ICC Workshops) Pub Date : 2017-05-21 DOI:10.1109/ICCW.2017.7962689

Y. Medjahdi, R. Zayani, H. Shaiek, D. Roviras

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引用次数: 19

摘要

5G的主要问题之一是在松散的同步性下实现碎片频谱的灵活多址接入。不幸的是，传统的OFDM不能满足这一标准，因为严格的同步是确保无失真多址的必要条件。窗口化是克服这个问题的最流行的方法之一。本文研究了对基本加窗波形进行加权重叠和叠加(WOLA)处理的增强方法。为此，考虑了W-OFDM和WCP-COQAM两种方案。实验结果表明，所提出的WOLA- ofdm和WOLA- coqam方案优于基本的有窗方案，从而证实了WOLA处理作为多用户异步访问中有窗波形处理的有力工具的有效性。

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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WOLA processing: A useful tool for windowed waveforms in 5G with relaxed synchronicity

One of the main 5G issues is to enable flexible multiple access to fragmented spectrum with relaxed synchronicity. Unfortunately, the classical OFDM cannot fulfill this criterion, since a tight synchronization is essential to ensure free-distortion multiple access. Windowing is one of the most popular approaches that have been proposed to overcome this problem. In this paper, we investigate the enhancement that can provide Weighted Overlap and Add (WOLA) processing to basic windowed waveforms. To this end, two schemes are considered W-OFDM and WCP-COQAM. The obtained results show that the proposed WOLA-OFDM and WOLA-COQAM schemes outperform the basic windowed ones confirming thus the effectiveness of WOLA processing as a powerful tool for windowed waveforms in multiuser asynchronous access.

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2017 IEEE International Conference on Communications Workshops (ICC Workshops)

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