A Novel PAR Reduction Scheme Based on IEEE802.16a System

OFDM (orthogonal frequency-division multiplexing) is one of the key techniques of the next generation high rate communications system. One of the major drawbacks in OFDM systems is high PAR (peak-to-average power ratio) of the transmitted signal. This paper presents a novel PAR reduction method, called IPR (interleaving and phase rotation), which achieves significant PAR reduction. And also this method is studied based on IEEE802.16a system. Simulation results show that the novel method achieves better CCDF (complementary cumulative distribution function) performance than the others for comparison.