Title :
An Analysis of OFDM Peak Power Reduction Techniques for WiMAX Systems
Author :
Ciochina, Cristina ; Buda, Fabien ; Sari, Hikmet
Author_Institution :
Sequans Communications, 19 Le Parvis, 92073 Paris La De\\fense, France; Supelec, 1-3 Rue Joliot Curie, 91190 Gif sur Yvette, France
Abstract :
The main drawback of Orthogonal Frequency Division Multiplexing (OFDM) systems is the high peak-to-average power ratio (PAPR), which significantly reduces the efficiency of the transmit high power amplifier (H PA). Several methods have been proposed in the literature to reduce the peak power of OFDM signals and substantial gains were reported. In this paper, the effectiveness of some recently proposed methods is evaluated for WiMAX systems. Using typical HPA models and spectral masks, these PAPR reduction methods are evaluated in terms of the total system degradation.
Keywords :
Bit error rate; Digital video broadcasting; High power amplifiers; OFDM; Peak to average power ratio; Power system modeling; Quadrature amplitude modulation; Time domain analysis; WiMAX; Wireless LAN; ACE-POCS Method; HPA Back-off; OFDM; PAPR reduction; Rapp Model; WiMAX;
Conference_Titel :
Communications, 2006. ICC '06. IEEE International Conference on
Conference_Location :
Istanbul
Print_ISBN :
1-4244-0355-3
Electronic_ISBN :
8164-9547
DOI :
10.1109/ICC.2006.255378