DocumentCode
532237
Title
A novel predistorter structure for memory nonlinear distortion in wideband OFDM systems
Author
Zhi-Yuan, Ren ; Hai-Lin, Zhang
Author_Institution
State Key Lab. of Integrated Services Network, Xidian Univ., Xi´´an, China
Volume
7
fYear
2010
fDate
22-24 Oct. 2010
Abstract
To solve the problem of memory nonlinear distortion in wideband OFDM system, a novel Frequency Domain Predistorter (FDPD) structure is proposed. The Predistorter which based on 2-dimension look-up table method is used in frequency domain. It can compensate the memory nonlinear distortion accurately, but the system performance is restricted by the size of lookup table. Then the Filter Look-Up Table (FLUT) with FDPD, which combined the FDPD with FLUT, is proposed to improve the BER performance and convergence speed. The simulation results indicate that the novel structure can decrease the BER in the receiver and increase the convergence speed.
Keywords
OFDM modulation; table lookup; 2D lookup table method; BER performance; filter lookup table; frequency domain predistorter structure; memory nonlinear distortion; system performance; wideband OFDM system; Aging; FLUT; Frequency Domain; OFDM; Predistort;
fLanguage
English
Publisher
ieee
Conference_Titel
Computer Application and System Modeling (ICCASM), 2010 International Conference on
Conference_Location
Taiyuan
Print_ISBN
978-1-4244-7235-2
Electronic_ISBN
978-1-4244-7237-6
Type
conf
DOI
10.1109/ICCASM.2010.5620188
Filename
5620188
Link To Document