The Problem of Peak-to-Average Power Ratio in OFDM Systems

TL;DR

This paper discusses the high Peak-to-Average Power Ratio issue in OFDM systems, analyzing various techniques for PAPR reduction, their pros and cons, to improve signal quality and system performance.

Contribution

It provides a comprehensive mathematical analysis of multiple PAPR reduction techniques and compares their advantages and disadvantages.

Findings

Several PAPR reduction techniques are analyzed mathematically.

Advantages and disadvantages of each technique are enumerated.

The paper highlights the importance of PAPR reduction for OFDM system performance.

Abstract

Orthogonal Frequency Division Multiplexing (OFDM) is widely used in many digital communication systems due to its advantages such us high bit rate, strong immunity to multipath and high spectral efficiency but it suffers a high Peak-to-Average Power Ratio (PAPR) at the transmitted signal. It is very important to deal with PAPR reduction in OFDM systems to avoid signal degradation. Currently, the PAPR problem is an active area of research and in this paper we present several techniques and that mathematically analyzed. Moreover their advantages and disadvantages have been enumerated in order to provide the readers the actual situation of the PAPR problem.