A COMPARATIVE SURVEY ON PAPR REDUCTION TECHNIQUES FOR OFDM PERFORMANCE IMPROVEMENT

The Orthogonal Frequency Division Multiplexing is one of the modulation techniques widely used in the broadband wireless technology. One of the main problems of this technology is the high peak - to - average power ratio of transmission signal due to the superposition of many subcarriers. Th is paper presents a comparative studies of peak - to - average power ratio reduction technique, which compares among the selective mapping method, clipping method and Tone reservation techniques for PAPR reduction. The paper presents the performance of these different PAPR reduction techniques and compares it with unreduced PAPR