New Bits-to-Symbol Mapping for 32 APSK over Nonlinear Satellite Channels

Jaeyoon LEE  Dongweon YOON  Sang Kyu PARK  

IEICE TRANSACTIONS on Communications   Vol.E92-B   No.11   pp.3384-3388
Publication Date: 2009/11/01
Online ISSN: 1745-1345
DOI: 10.1587/transcom.E92.B.3384
Print ISSN: 0916-8516
Type of Manuscript: Special Section LETTER (Special Section on Satellite Communication Technologies in Conjunction with Main Topics of JC-SAT2008)
bits-to-symbol mapping,  amplitude phase shift keying,  bit error rate,  

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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.