A new peak-to-average power reduction technique in the OFDM system using μ-law compander

Author

Sakran, H. ; Shokair, M. ; Elazm, A. Abou

Author_Institution

Dept. of Electron. & Electr. Commun., El-Menoufia Univ., El-Menoufia, Egypt

fYear

2008

fDate

21-24 Oct. 2008

Firstpage

386

Lastpage

390

Abstract

Peak to average power ratio (PAPR) is one of the serious problems in any wireless communication system using multicarrier modulation technique like OFDM, which reduces the efficiency of the transmit high power amplifier. In this paper, we suggest a new scheme based on μ-law compander where the optimum value of μ is calculated. With the newly proposed scheme, the simulation results show that, the PAPR is reduced by 5.8 dB. Moreover, E_b/N₀ is decreased by 6 dB at bit error rate (BER)=10^-3 in the presence of nonlinear power amplifier.

Keywords

OFDM modulation; compandors; error statistics; power amplifiers; radiocommunication; μ-law compander; OFDM system; bit error rate; multicarrier modulation; nonlinear power amplifier; peak-to-average power reduction technique; transmit high power amplifier; wireless communication system; Bit error rate; Digital audio broadcasting; Digital video broadcasting; Dynamic range; Hardware; Intersymbol interference; OFDM modulation; Peak to average power ratio; Power amplifiers; Telecommunication standards;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Communication Systems. 2008. ISWCS '08. IEEE International Symposium on

Conference_Location

Reykjavik

Print_ISBN

978-1-4244-2488-7

Electronic_ISBN

978-1-4244-2489-4

Type

conf

DOI

10.1109/ISWCS.2008.4726083

Filename

4726083