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학술대회 Improved Performance of APSK Modulation Scheme for Sattellite System
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저자
김재현, 신천식, 이상욱, 김재훈
발행일
200712
출처
International Conference on Information, Communications and Signal Processing (ICICS) 2007, pp.1-4
DOI
https://dx.doi.org/10.1109/ICICS.2007.4449734
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.
키워드
APSK modulation, Bit mapping, HPA
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