Title :
Improved performance of APSK modulation scheme for sattellite system
Author :
Kim, Jae-Hyun ; Sin, Cheon Sig ; Lee, Sang Uk ; Kim, Jae Hoon
Author_Institution :
Electron. & Telecommun. Res. Inst., Daejeon
Abstract :
This paper propose new bit mapping based on amplitude phase shift keying (APSK) modulation with application to satellite broadband communications in the DVB-S2 standard The APSK modulation outperforms classical 16-QAM and 16-PSK over a typical satellite nonlinear channel due to its intrinsic robustness against the High Power Amplifier (HPA) nonlinear characteristics. The proposed bit mapping considers non-linearity of HPA in the APSK modulation and the performance of APSK modulation for the proposed bit mapping has been compared to the conventional bit mapping.
Keywords :
digital video broadcasting; direct broadcasting by satellite; phase shift keying; power amplifiers; quadrature amplitude modulation; APSK modulation scheme; DVB-S2 standard; QAM; amplitude phase shift keying; bit mapping; high power amplifier; satellite broadband communications; satellite nonlinear channel; satellite system; AWGN; Amplitude modulation; Artificial satellites; Constellation diagram; Digital video broadcasting; Mathematical model; Phase modulation; Robustness; Satellite broadcasting; Voltage; APSK modulation; HPA; bit mapping;
Conference_Titel :
Information, Communications & Signal Processing, 2007 6th International Conference on
Conference_Location :
Singapore
Print_ISBN :
978-1-4244-0982-2
Electronic_ISBN :
978-1-4244-0983-9
DOI :
10.1109/ICICS.2007.4449734
