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Improved Performance of APSK Modulation Scheme for Sattellite System
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- Authors
- Jae-Hyun Kim, Cheon Sig Sin, Sang Uk Lee, Jae Hoon Kim
- Issue Date
- 2007-12
- Citation
- International Conference on Information, Communications and Signal Processing (ICICS) 2007, pp.1-4
- Language
- English
- Type
- Conference Paper
- Project Code
- 07MR2400, Development of Global Navigation Satellite System Ground Station and Search And Rescue Beacon Technologies, Lee Sang Uk
- 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. ©2007 IEEE.
- KSP Keywords
- 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