Title :
Pre-compensation of the frequency-dependence of a non-linear amplifier in a multi-carrier transmission
Author :
Chaker, Ammar ; Atiaudo, M. ; Fijalkow, Inbar ; Gautier, Jean-Luc
Author_Institution :
Univ. de Cergy-Pontoise, France
Abstract :
This paper presents the impact of the high-frequency memory of a non-linear amplifier on a multi-carrier (OFDM) transmission and an original, yet very simple, method to compensate for it directly at the transmitter. Our method is efficient thanks to the usage of a long enough cyclic prefix, as in actual OFDM systems.
Keywords :
OFDM modulation; power amplifiers; radio transmitters; wideband amplifiers; OFDM; frequency-dependence; high-frequency memory; multicarrier transmission; nonlinear amplifier; orthogonal frequency division multiplexing; transmitter; Broadband amplifiers; Communication standards; Digital communication; Digital modulation; Frequency division multiplexing; High power amplifiers; OFDM modulation; Power amplifiers; Radiofrequency amplifiers; Transmitters;
Conference_Titel :
Communications, 2004 IEEE International Conference on
Print_ISBN :
0-7803-8533-0
DOI :
10.1109/ICC.2004.1312961
