Title :
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
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, Eb/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;
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
DOI :
10.1109/ISWCS.2008.4726083
