A Companding Technique for PAPR Reduction of OFDM Systems

Author

Hao, Miin-Jong ; Liaw, Chung-Ping

Author_Institution

Dept. of Comput. & Commun. Eng., Nat. Kaohsiung First Univ. of Sci. & Technol.

fYear

2006

fDate

12-15 Dec. 2006

Firstpage

634

Lastpage

637

Abstract

A companding technique using the hyperbolic tangent transform is proposed for reducing the peak-to-average-power ratio (PAPR) of orthogonal frequency division multiplexing (OFDM) signals. This technique is practical and can be implemented easily in analog integrated circuit design. The PAPR value of an OFDM system and the optimal companding coefficient to attain the minimum quantization error are derived. Error probability performance of the system after the companding is evaluated, which then is compared to the systems with the mu-law and A-law companding techniques.

Keywords

OFDM modulation; error statistics; radio networks; transforms; A-law companding techniques; OFDM systems; PAPR reduction; analog integrated circuit design; error probability; hyperbolic tangent transform; mu-law companding techniques; orthogonal frequency division multiplexing signals; peak-to-average-power ratio reduction; quantization error; DSL; Digital video broadcasting; Distortion; OFDM; Peak to average power ratio; Quantization; Radiofrequency interference; Satellite broadcasting; TV broadcasting; TV interference;

fLanguage

English

Publisher

ieee

Conference_Titel

Intelligent Signal Processing and Communications, 2006. ISPACS '06. International Symposium on

Conference_Location

Yonago

Print_ISBN

0-7803-9732-0

Electronic_ISBN

0-7803-9733-9

Type

conf

DOI

10.1109/ISPACS.2006.364736

Filename

4212354