Method and apparatus for reducing peak to average power ratio in a multi-carrier modulation communication system

摘要

A probability distribution transformer ( 110 ) in a multi-carrier modulation (MCM) transmitter ( 101 ) receives a MCM signal comprising data packets that represent amplitude values, where the amplitude values are characterized by a Gaussian probability density function. The probability distribution transformer ( 110 ), which is provided by a number of piecewise linear transforms, produce a transformed MCM signal comprising transformed data packets which represent transformed amplitude values, where the transformed amplitude values are characterized by a uniform probability density function. When transmitted, the transformed MCM signal results in reduced peak-to-average power ratio (PAPR). In a corresponding MCM receiver ( 102 ), a probability distribution inverter ( 180 ) inverts the transformation.