Peak-to-average ratio reduction algorithm for MCM signal using the selective partial transmit sequence

Multicarrier modulation (MCM) is an attractive technique for achieving high capacity for wireless and wired data transmission systems. However, one serious drawback of the MCM system is a high PAR (peak-to-average power ratio) value. There are many techniques to reduce this PAR value, for example, signal distortion techniques, coding techniques and techniques using a scrambling algorithm. A selective-PTS (partial transmit sequence) algorithm, which is based on a technique using a scrambling algorithm, is proposed and analyzed. Simulation results indicate that the proposed algorithm shows similar PAR reduction performance and very low computational complexity as compared to the optimum-PTS algorithm.