Title :
Research on predistortion technology based on look-up table for 16APSK in satellite channel
Author :
Wang, Shoudong ; Bian, Dongming ; Gou, Liang ; Zhang, Wei
Author_Institution :
Inst. of Commun. Eng., PLA Univ. of Sci. & Technol., Nanjing, China
Abstract :
The nonlinearity characteristic in satellite channel will causes spectrum regrowth and adjacent channel interference, which may have bad influence on communication system. In order to compensate for nonlinear distortion in satellite channel, combining with 16APSK, a digital baseband predistortion method based on Look-Up Table (LUT) is studied. Simulation results show that the method can improve the linearity of satellite channel and reduce spectrum regrowth, it can improve the bit error rate(BER) performance too.
Keywords :
error statistics; interference (signal); nonlinear distortion; phase shift keying; satellite communication; table lookup; 16APSK; adjacent channel interference; bit error rate; digital baseband predistortion method; look-up table; nonlinear distortion; predistortion technology; satellite channel; spectrum regrowth; Digital video broadcasting; Frequency modulation; Phase shift keying; Predistortion; Quadrature amplitude modulation; Satellites; Table lookup; APSK; Look-Up Table (LUT); power amplifiers; predistortion;
Conference_Titel :
Computer Science and Service System (CSSS), 2011 International Conference on
Conference_Location :
Nanjing
Print_ISBN :
978-1-4244-9762-1
DOI :
10.1109/CSSS.2011.5974970
