Publication: Near-Optimal Detection of CE-OFDM Signals with High Power Efficiency via GAMP-based Receivers
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2023-01-12
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IEEE
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Abstract
A quasi-optimum receiver based on the generalized approximate message passing (GAMP) concept is proposed for constant envelope orthogonal frequency division multiplexing (CE-OFDM) signals. Large modulation index results in large power efficiency for CE-OFDM, but the phase modulator introduces nonlinear distortion effects, precluding good performance for a simple phase detector. Our simulation results show that the GAMP receiver can achieve quasi-optimum performance and it can outperform the linear OFDM and CE-OFDM with phase detectors, for both additive white Gaussian noise (AWGN) and frequency selective channels.
Description
Proceeding of: 2022 IEEE Globecom Workshops (GC Wkshps), Rio de Janeiro, Brazil, 4-8 December 2022
Keywords
OFDM, Phase modulation, GAMP, Nonlinearity
Bibliographic citation
López Morales, Manuel José; Dinis, Rui; García Armada, Ana. Near-Optimal Detection of CE-OFDM Signals with High Power Efficiency via GAMP-based Receivers. In: 2022 IEEE Globecom Workshops (GC Wkshps) Proceedings, Rio de Janeiro, Brazil, 4-8 December 2022. IEEE, Jan. 2023, Pp. 7-12