Wavelet modulation: An alternative modulation with low energy consumption

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• 作者：Marwa Chafii^a ; ^{marwa.chafii@supelec.fr} ; Jacques Palicot^a ; ^{jacques.palicot@centralesupelec.fr} ; Ré ; mi Gribonval^b ; ^{remi.gribonval@inria.fr}
• 关键词：Wavelet modulation ; Wavelet transform ; OFDM ; Peak-to-Average-Power Ratio ; Meyer wavelet ; Haar wavelet
• 刊名：Comptes Rendus Physique
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：18
• 期：2
• 页码：156-167
• 全文大小：1177 K
• 卷排序：18

文摘

This paper presents wavelet modulation, based on the discrete wavelet transform, as an alternative modulation with low energy consumption. The transmitted signal has low envelope variations, which induces a good efficiency for the power amplifier. Wavelet modulation is analyzed and compared for different wavelet families with orthogonal frequency division multiplexing (OFDM) in terms of peak-to-average power ratio (PAPR), power spectral density (PSD) properties, and the impact of the power amplifier on the spectral regrowth. The performance in terms of bit error rate and complexity of implementation are also evaluated, and several trade-offs are characterized.