A Comparison of Different Papr Reduction Techniques in OFDM Using Various Modulations

Orthogonal Frequency Division Multiplexing (OFDM) is one of the Strong candidate for Transmission of high data rate due to Multicarrier Modulation. One of the challenging Issue of OFDM is its high Peak to Average Power Ratio (PAPR or PAR). This Paper discusses different PAPR Reduction techniques in OFDM. The Classical Clipping, Selective Mapping, Tone reservation and Partial Transmit sequence Technique is used in this paper. Through the Analysis, it is shown that Clipping on 4-PAM is better than QPSK and 4-QAM with 64 subcarriers and Classical clipping is better than other techniques using QPSK modulation with 64 subcarriers.

Provided by: Academy & Industry Research Collaboration Center Topic: Mobility Date Added: Aug 2012 Format: PDF

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