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Analysis of PAPR Reduction Schemes to Develop Selection
Criteria for OFDM Signals Keywords: Orthogonal Frequency Division Multiplexing, High Power Amplifier, Peak to Average Power Ratio, Clipping and Filtering, Selected Mapping, Tone Reservation, Tone Injection, Active Contstellation Extension and Multiple Input Multiple Output Mehran University Research Journal of Engineering & Technology Volume 34 , Issue 4 Farzana Rauf Abro,Manzoor Ahmed Hashmani, Abstract This paper presents a review of different PAPR (Peak to Average Power Ratio) reduction schemes of OFDM (Orthogonal Frequency Division Multiplexing) signals. The schemes that have been considered include Clipping and Filtering, Coding, ACE (Active Contstellation Extension), SLM (Selected Mapping), PTS (Partial Transmit Sequence), TI (Tone Injection) and TR (Tone Reservation). A comparative analysis has been carried out qualitatively. It has been demonstrated how these schemes can be combined with MIMO (Multiple Input Multiple Output) technologies. Finally, criteria for selection of PAPR reduction schemes of OFDM systems are discussed |