상세정보
학술대회
Improved Performance of APSK Modulation Scheme for Sattellite System
- 발행일
- 200712
- 출처
- International Conference on Information, Communications and Signal Processing (ICICS) 2007, pp.1-4
- 협약과제
- 07MR2400, 위성항법지상국시스템 및 탐색구조단말기 기술개발, 이상욱
- 초록
- 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. ©2007 IEEE.
- KSP 제안 키워드
- 16 quadrature amplitude modulation(16QAM), DVB-S2, High power amplifier(HPA), Modulation scheme, Non-Linearity, Nonlinear characteristics, amplitude phase shift keying(APSK), bit mapping, broadband communication, improved performance, nonlinear channel