PAPR Reduction Using Precoding Technique along with ICTF in OFDM Systems

Abstract

An Iterative Companding Transform and Filtering (ICTF) is an efficient technique which is integrated with precoding technique for minimization of PAPR (Peak-to-Average Power Ratio) for OFDM signal (Orthogonal Frequency Division Multiplexing). With the help of specifically designed duplication procedure, ICTF with Precoding Technique is able to perform significant minimization of PAPR. In the presented paper, an inclusive hypothetical analysis is shown along with nearly valuable results such as PAPR gain is derived. Compared to the simple companding with precoding technique, ICTF with Precoding Technique can dramatically decrease the desired PAPR with low complexity.