MATLAB Implementation of Classic OFDM PAPR Reduction Algorithms

This document provides MATLAB implementations of classic OFDM Peak-to-Average Power Ratio (PAPR) reduction algorithms, featuring PTS (Partial Transmit Sequence), SLM (Selected Mapping), and clipping techniques. These algorithms are specifically designed to address PAPR issues in OFDM systems, which arise from the multicarrier nature of OFDM signals where multiple subcarriers can constructively interfere to create high peak amplitudes. The MATLAB code includes algorithm parameter configurations, signal generation modules, and PAPR calculation functions with comprehensive commenting for easy adaptation. Our implementation not only covers the standard algorithms but also incorporates optimized versions with enhanced phase rotation schemes for PTS, improved candidate sequence generation for SLM, and adaptive threshold control for clipping operations. The code structure follows modular design principles with separate functions for signal partitioning, phase optimization, and PAPR measurement, allowing researchers to easily modify specific components while maintaining system integrity.