Oversampled convex optimized clipping technique for Squared Crest Factor (SCF) reduction in OFDM signal

There are numerous benefits in the transmission of a signal using Orthogonal Frequency Division Multiplexing (OFDM). They are high data rate, robust performance, high spectrum efficiency, etc., but high crest factor (cf), is the main drawback which minimises transmitter power efficiency and complexity in hardware implementation. The method used here is a concept of iterative standard deviation based clipping and optimized filtering. The proposed method shows a higher reduction in Squared Crest Factor and bit error rate with minimum number of iterations and reduced out-of-band distortion when compared over classical (ICF) methods. The effects of oversampling at l= 1,2,4,8 on the performance of proposed OFDM system is also discussed.