Performance Comparison of Companding Techniques and New D-Cast Method for Reduction of PAPR in OFDM (Only Abstract)

Abstract

This paper proposes a new D-cast method to reduce the Peak to Average Power Ratio(PAPR) by minimizing the overall bit error rate as well as the out-of-band interference(OBI) in the Orthogonal Frequency Division Multiplexed Signals. One of the main drawbacks of OFDM signals is that they suffer from high PAPR. Although there are multiple PAPR reduction techniques but comparisons have shown that the Companding technique and D-cast method are more effective in the reduction of PAPR to improve the signal quality in addition to being less complex. This paper includes the comparison between various PAPR reduction methods and shows how the proposed method turns out to be the best one.