Title :
A fast LUT predistorter for power amplifier in OFDM systems
Author :
JIN, Minglu ; Kim, Sooyoung ; Ahn, Doseob ; Oh, Deock-Gil ; Kim, Jae Moung
Author_Institution :
Radio & Broadcasting Res. Lab., Res. Inst., Daejeon, South Korea
Abstract :
We proposed a new predistortion scheme that result in a last convergence performance by using a gradual quantization on input signal value from rough to fine. We compare the performance of the proposed scheme to conventional methods. Simulation results of the OFDM system on an AWGN channel reveal that the proposed method show improved convergence performance without any loss in accuracy.
Keywords :
AWGN channels; OFDM modulation; convergence; power amplifiers; table lookup; AWGN channel; OFDM systems; additive white Gaussian noise channel; fast convergence algorithm; gradual quantization; lookup table; orthogonal frequency division multiplexing; power amplifier; Communication standards; Convergence; Digital communication; Digital modulation; OFDM modulation; Performance loss; Power amplifiers; Predistortion; Quantization; Table lookup;
Conference_Titel :
Personal, Indoor and Mobile Radio Communications, 2003. PIMRC 2003. 14th IEEE Proceedings on
Print_ISBN :
0-7803-7822-9
DOI :
10.1109/PIMRC.2003.1260446
