Joint time-frequency analysis: methods and applications
Joint time-frequency analysis: methods and applications
Multicarrier modulation with low PAR: applications to DSL and wireless
Multicarrier modulation with low PAR: applications to DSL and wireless
Gabor Analysis and Algorithms: Theory and Applications
Gabor Analysis and Algorithms: Theory and Applications
Insights on ICI and its effects on performance of OFDM systems
Digital Signal Processing
Metric-Based Symbol Predistortion Techniques for Peak Power Reduction in OFDM Systems
IEEE Transactions on Wireless Communications
Nonorthogonal pulseshapes for multicarrier communications in doubly dispersive channels
IEEE Journal on Selected Areas in Communications
Wireless Personal Communications: An International Journal
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In this paper, the Active Constellation Extension (ACE) method of Peak-to-Average Power Ratio (PAPR) reduction is studied for the application in Generalized Mulicarrier (GMC) transmission using nonorthogonal subcarriers. It is shown, that GMC signaling is advantageous for modern wireless communications due to its high spectral efficiency, however, it faces even higher PAPR than in the case of the conventional Orthogonal Frequency Division Multiplexing (OFDM) transmission. The modification of the ACE method for the GMC signals is presented, which takes into account overlapping of data symbol pulses and of their subband spectra. Further improvements of the proposed method are suggested that lead to the decrease of the computational complexity and to more efficacious PAPR reduction in comparison with the conventional ACE scheme. With these improvements, the PAPR reduction for the GMC signaling is the same as for OFDM.