IEICE Transactions on Communications
Online ISSN : 1745-1345
Print ISSN : 0916-8516
Special Section on Satellite Communication Technologies in Conjunction with Main Topics of JC-SAT2008
New Bits-to-Symbol Mapping for 32 APSK over Nonlinear Satellite Channels
Jaeyoon LEEDongweon YOONSang Kyu PARK
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2009 Volume E92.B Issue 11 Pages 3384-3388

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Abstract
A 4+12+16 amplitude phase shift keying (APSK) modulation outperforms other 32-APSK modulations such as rectangular or cross 32-quadrature amplitude modulations (QAMs) which have a high peak to average power ratio that causes non-negligible AM/AM and AM/PM distortions when the signal is amplified by a high-power amplifier (HPA). This modulation scheme has therefore been recommended as a standard in the digital video broadcasting-satellite2 (DVB-S2) system. In this letter, we present a new bits-to-symbol mapping with a better bit error rate (BER) for a 4+12+16 APSK signal in a nonlinear satellite channel.
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© 2009 The Institute of Electronics, Information and Communication Engineers
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