Wavelet modulation: An alternative modulation with low energy consumption |
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Institution: | 1. CentraleSupélec, IETR, Campus de Rennes, 35576 Cesson-Sévigné cedex, France;2. IRISA, Inria – Bretagne Atlantique, 35042 Rennes cedex, France |
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Abstract: | 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. |
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Keywords: | Wavelet modulation Wavelet transform OFDM Peak-to-Average-Power Ratio Meyer wavelet Haar wavelet Modulation en ondelettes Transformée en ondelettes OFDM Facteur de crête Ondelettes de Meyer Ondelette de Haar |
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