PAPR Reduction Method Based on MSLM for OFDM System

To deal with the issue of large computational complexity in SLM-OFDM system, a PAPR reduction method using multiple select mapping (MSLM) is present for OFDM system. This method divides the transmit data into multiple groups. Each group has the same data length at transmit end of OFDM system. Other performance of the method is similar to the SLM. Thus, PAPR is reduced by using MSLM method for OFDM signal, and the computational complexity is decreased as well. Simulation results demonstrate that MSLM method outperforms the conventional SLM(CSLM) algorithm with respect to PAPR by 1.3dB when selection branch number is 16 and CCDF is 10^-3. It also has better symbol error ratio performance.