Apparatus and method for reducing peak to average power ratio in an orthogonal frequency division multiplexing system

摘要

An apparatus and method for PAPR reduction in an OFDM system are disclosed. On a transmission side, an information sequence is generated by adding CRC bits to an information bit stream and masked with a plurality of different mask sequences. The masked information sequences are inverse-fast-Fourier-transformed. An IFFT sequence having the lowest PAPR is selected among the IFFT sequences.