A Novel Adaptive PTS Scheme for PAPR Reduction in OFDM System

Orthogonal frequency division multiplexing (OFDM) technique is widely used in wireless communications, since its high spectrum utilization and strong anti-interference ability. However, it has the problem of high peak-to-average power ratio (PAPR), which break the symbol transport characteristics and affects the performance of the system. Partial transmission sequence (PTS) is an effective way to reduce the PAPR, but its high computational complexity and the problem of using the same block number for all signals limit its performance. The aim is to alleviate the computational pressure of PTS method and improve the efficiency of the system, we propose an adaptive parameter selection scheme based on fuzzy control (F-APTS). The simulation results show that the proposed F-APTS structure is effective in improving symbol transmission performance, which not only reduces the PAPR but also improves the performance of computational complexity reduction and bit error rate.