Orthogonal Frequency division multiplexing (OFDM) is widely used technique in modern day wireless... more Orthogonal Frequency division multiplexing (OFDM) is widely used technique in modern day wireless communication systems which provides robustness to channel fading and immunity to impulse interference. Despite of its advantages, one of themajor drawbacks of OFDM system is very high peak-to-average power ratio (PAPR). Among the various PAPR reductiontechniques, companding appears attractive for its simplicity and effectiveness. In this paper novel compandingtechnique based on mathematical airy function is proposed which offers improved bit error rate, minimizes out-ofbandinterference and reduce PAPR effectively. Simulation results illustrates the performance of the system under Additive WhiteGaussian Noise (AWGN) and further evaluation is done for comparing the proposed companding technique with previoustechniques.
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