恒定包络信号空间分集

2014 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP) Pub Date : 2014-05-04 DOI:10.1109/ICASSP.2014.6854180

T. V. K. Chaitanya, D. Danev, E. Larsson

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引用次数: 6

摘要

我们提出了一种非线性信号空间分集(SSD)预编码技术，该技术在离散时间内产生具有恒定包络(CE)的发射信号，从而在脉冲形状滤波后产生低峰均功率比(PAPR)波形。本文提出了两种构造CE信号集的方法。虽然所提出的CE-SSD方案在编码增益性能方面不如传统SSD设计，但由于减少了对功率放大器(PA)的回退要求，因此在整体功率效率方面表现更好。

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Constant envelope signal space diversity

We propose a nonlinear signal space diversity (SSD) precoding technique that produces transmit signals that have constant envelope (CE) in discrete time, resulting in low peak-to-average power ratio (PAPR) waveforms after pulse-shape filtering. We propose two methods for construction of CE signal set. While the proposed CE-SSD scheme is inferior to the conventional SSD designs in terms of coding gain performance, it performs better in terms of overall power efficiency because of the reduced back-off requirement of the power amplifier (PA).

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来源期刊

2014 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)

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