SYSTEM AND METHOD FOR SUPPRESSING PAPR IN MC-CDMA AND DERIVATIVES

摘要

Embodiments are provided to suppress the peak-to-average power ratio (PAPR) in MC-Multi-Carrier Code Division Multiple Access (MC-CDMA) and derivative systems. The embodiments include transmitter and receiver configurations for limiting the level of PAPR in the transmitted and received signals. The PAPR is limited to a PAPR of typical OFDM signals. At the transmitter, a sequence of Newman phase rotations (rotors) is applied to a sequence of transmitted signals prior to an inverse Fast Fourier Transform (FFT) function. With the correct choice of Newman phases, the PAPR of the transmitted signals is sufficiently suppressed. The sequence is also repeated for subsequently transmitted signals. At the receiver, the sequence of Newman rotors is removed after a FFT function. The transmitter and receiver are configured by adding an additional module or function without changing other existing used modules or functions.