MATLAB Algorithm for Peak-to-Average Power Ratio (PAPR) Reduction Using Reserved Subcarrier Method (TR)

In this paper, we introduce a novel algorithm—the Reserved Subcarrier Method (TR)—designed to reduce Peak-to-Average Power Ratio (PAPR) while maintaining system efficiency. This MATLAB-based algorithm finds practical applications in digital communication systems, particularly when PAPR becomes a critical performance constraint. The Reserved Subcarrier Method operates as a digital signal processing technique that effectively suppresses PAPR, thereby enhancing overall system performance. The core implementation involves strategically reserving specific subcarriers for PAPR reduction while allocating the remaining subcarriers for data transmission. Key MATLAB functions include: - Subcarrier allocation matrix generation - PAPR calculation using ifft() operations - Optimization loops for reserved subcarrier phase selection - Constellation point adjustment algorithms We provide detailed explanations of the algorithm's theoretical foundation and implementation methodology, supported by experimental data validating its effectiveness. The MATLAB code structure demonstrates: 1. Initialization of OFDM parameters (subcarrier count, reserved carriers) 2. Iterative phase optimization for reserved subcarriers 3. Time-domain signal reconstruction with PAPR monitoring 4. Performance comparison with conventional OFDM systems We believe this innovative algorithm will significantly contribute to the design and optimization of modern digital communication systems, offering improved power amplifier efficiency and reduced signal distortion.