A peak cancellation-crest factor reduction (PC-CFR) device includes a clipping unit configured to output a clipping error signal by clipping amplitude values of a first baseband complex signal based on a predetermined threshold value; a peak value determination unit configured to receive the clipping error signal, and determine a first amplitude value as a peak value when the first amplitude value is greater than a second amplitude value input before the first amplitude value and a third amplitude value input after the first amplitude value among amplitude values of the clipping error signal; a cancellation pulse generator (CPG) allocation unit configured to allocate the peak value to a CPG; and a subtractor configured to subtract a cancellation pulse generated from the CPG from the first baseband complex signal and output a second baseband complex signal with a reduced peak-to-average power ratio (PAPR).

A system for use with beam signals, the system including: a crest factor reduction (CFR) module having inputs and corresponding outputs, wherein each of the inputs is for receiving a corresponding different beam signal of the beam signals and wherein each output corresponds to a different input of the plurality of inputs and is for outputting a different CFR-adjusted signal of a plurality of CFR-adjusted signals, each CFR-adjusted signal of the plurality of CFR-adjusted signals corresponding to a different beam signal of the plurality of beam signals; and a transmitter connected to the outputs of the CFR module, wherein the CFR module is configured to perform crest factor reduction on the beam signals to generate the plurality of CFR-adjusted signals, and wherein the crest factor reduction performed on the beam signals is based on a weighted sum of the magnitudes of multiple beams signals among the beam signals.