Analytical calculations of CCDF for some common PAPR reduction techniques in OFDM systems

Author

Ramavath, Srinivas ; Kshetrimayum, Rakhesh Singh

Author_Institution

Dept. of Electron. & Electr. Eng., Indian Inst. of Technol. (IIT) Guwahati, Guwahati, India

fYear

2012

fDate

28-29 Dec. 2012

Firstpage

393

Lastpage

396

Abstract

High PAPR is one of the major drawbacks of OFDM systems. It drives the transmitter´s power amplifier into its nonlinear region, thus causing nonlinear distortions. Square rooting technique (SQRT) and μ-law companding technique are the simple techniques to reduce PAPR in OFDM systems. In this paper, we derive analytical CCDF for both the techniques. The comparisons of SQRT and μ-law companding techniques are carried out using theoretical and simulation results. It is verified that the μ-law companding technique is better than SQRT technique for PAPR reduction.

Keywords

OFDM modulation; power amplifiers; μ-law companding technique; CCDF; OFDM systems; PAPR reduction techniques; SQRT technique; nonlinear region; orthogonal frequency division multiplexing systems; square rooting technique; transmitter power amplifier; Equations; Nonlinear distortion; Peak to average power ratio; Probability density function; Receivers; Wireless communication; μ-law compander; CCDF; OFDM; PAPR; SQRT;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications, Devices and Intelligent Systems (CODIS), 2012 International Conference on

Conference_Location

Kolkata

Print_ISBN

978-1-4673-4699-3

Type

conf

DOI

10.1109/CODIS.2012.6422221

Filename

6422221