Performance Analysis of PAPR Reduction in Helical Interleaved OFDM System

Download or read book Performance Analysis of PAPR Reduction in Helical Interleaved OFDM System written by Manoj Kumar Shukla and published by . This book was released on 2012 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Orthogonal Frequency Division Multiplexing (OFDM) is one of the most promising technique for the fourth generation (4G) communication. High spectral efficiency, immunity to channel interference and nonlinear distortions are some advantages of OFDM. But frequency offset and high peak-to-average power ratios (PAPR) for large number of subcarriers are two major drawbacks for practical application. This paper presents the PAPR reduction techniques for OFDM system such as interleaving and different phase rotation schemes. Selected mapping (SLM) and partial transmit sequence (PTS) are applied with mentioning distinct conditions for the application of these techniques. This paper also presents helical interleaver in OFDM system, for the reduction of system complexity and significant reduction in memory requirement as well. Evaluation is done on the basis of mathematical analysis and mentions best way to simulate in step-wise manner in MATLAB.