Due to its valuable features, orthogonal frequency division multiplexing (OFDM) is utilized extensively with the modern communication systems. In despite, such employment is impacted with some drawbacks that has been received a great interest in the recent studies. One of the negative ramifications owing to the supersession of transmitted signal through inverse fast Fourier transform (IFFT) is the large values of peak to average power ratio (PAPR). Consequently, reducing PAPR has received a good effort in the current studies. Owing to an efficient data rate and low computational complexity further to reduce PAPR without distortion, precoding OFDM system is employed in the recent information transmission techniques. This paper proposed the complex BIFORE transform (CBT) as a precoding scheme for OFDM systems and compared with Walsh Hadamard transform (WHT). In the sequel, the CBT achieved more PAPR reduction than WHT when employing as a precoding transform with the OFDM systems because of reducing superposition of the transmitted signals. As clearly shown in the simulation results, the CBT can be considered as an efficient precoding transform with OFDM systems for reducing PAPR.
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