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Faster-than-Nyquist Signaling for Satellite Communications: A PAPR Analysis

机译:卫星通信中比奈奎斯特更快的信令:PAPR分析

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Faster-than-Nyquist signaling is a linear modulation strategy whose interest has significantly raised in the last years especially in the context of satellite communications. In this paper, we are interested in the peak-to-average power ratio (PAPR) behavior of such signals in comparison to usual signals generated with Nyquist signaling. To this end, a statistical analysis of the instantaneous power distribution is performed when a square-root raised cosine filter is used for pulse shaping. We especially show that, for small values of the pulse shaping filter roll-off factor, faster-than-Nyquist signaling can offer better PAPR behavior than Nyquist signaling if the transmit symbol constellation and the symbol rate are appropriately chosen.
机译:快于奈奎斯特信令是一种线性调制策略,在最近几年,尤其是在卫星通信方面,人们的兴趣大大提高。与Nyquist信号产生的普通信号相比,本文对此类信号的峰均功率比(PAPR)行为感兴趣。为此,当使用平方根升余弦滤波器进行脉冲整形时,对瞬时功率分布进行统计分析。我们特别表明,对于该脉冲整形滤波器的小的值的滚降因子,快于奈奎斯特信令可大于奈奎斯特信号提供更好的PAPR特性,如果发射符号星座和符号速率被适当地选择。

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