Power spectral density limitations of the Wavelet-OFDM system

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Publication details

Title of host publication2016 24th European Signal Processing Conference, EUSIPCO 2016
DatePublished - 28 Nov 2016
Pages1428-1432
Number of pages5
PublisherEuropean Signal Processing Conference (EUSIPCO),
Volume2016-November
Original languageEnglish
ISBN (Electronic)9780992862657

Abstract

Wavelet-OFDM based on the discrete wavelet transform is a multicarrier modulation technique of considerable interest, due to its good performance in several respects such as the peak-to-average power ratio and the interference cancellation, as investigated in the literature. More specifically, the Haar wavelet has been proposed by various researchers as the most attractive wavelet for data transmission. In this paper, we address the power spectral density limitations of Wavelet-OFDM, and we show analytically and experimentally that the bandwidth efficiency of Haar Wavelet-OFDM is significantly poorer than OFDM, having larger main lobe and side lobes compared with OFDM, which reduces the attractiveness of the scheme.

    Research areas

  • Discrete wavelet transform (DWT), Haar wavelet, Orthogonal frequency division multiplexing (OFDM), Power spectral density (PSD), Wavelet-OFDM

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