Title :
Pre-Distortion Linearization for QAM Modulation with Convolution Coding in DVB-RCS Link
Author :
Sardrood, P. Sojoodi ; Solat, G.R. ; Vakili, V. Taba taba
Author_Institution :
Iran Telecommun. Res. Centre, ITRC, Tehran, Iran
Abstract :
In this paper we investigate the efficiency of linearization for pre-distortion in 16, 32 and 64-QAM modulation with convolution coding, utilized TWTA power amplifier with 1dB back-off in Ka-band satellite link for DVB-RCS services. The effect of the linearizer on spectrum and BER for different modulation and coding in DVB-RCS link would be compared using Matlab simulink.
Keywords :
convolutional codes; digital video broadcasting; error statistics; linearisation techniques; power amplifiers; quadrature amplitude modulation; satellite links; travelling wave amplifiers; BER; DVB-RCS link; DVB-RCS services; Ka-band satellite link; Matlab simulink; QAM modulation; TWTA power amplifier; convolution coding; linearizer; predistortion linearization; Bit error rate; Digital video broadcasting; Encoding; Nonlinear distortion; Power amplifiers; Quadrature amplitude modulation;
Conference_Titel :
Wireless Communications Networking and Mobile Computing (WiCOM), 2010 6th International Conference on
Conference_Location :
Chengdu
Print_ISBN :
978-1-4244-3708-5
Electronic_ISBN :
978-1-4244-3709-2
DOI :
10.1109/WICOM.2010.5600965
