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학술지 Non-Uniform Constellations for ATSC 3.0
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저자
Nabil Sven Loghin, Jan Zollner, Belkacem Mouhouche, Daniel Ansorregui, Jinwoo Kim, 박성익
발행일
201603
출처
IEEE Transactions on Broadcasting, v.62 no.1, pp.197-203
ISSN
0018-9316
출판사
IEEE
DOI
https://dx.doi.org/10.1109/TBC.2016.2518620
협약과제
15MR3300, (통합)융합형 실감방송 서비스 및 전송 기술 개발, 허남호
초록
This paper introduces the concept of a non-uniform constellation (NUC) in contrast to conventional uniform quadrature-Amplitude modulation (QAM) constellations. Such constellations provide additional shaping gain, which allows reception at lower signal-To-noise ratios. ATSC3.0 will be the first major broadcasting standard, which completely uses NUCs due to their outstanding properties. We will consider different kinds of NUCs and describe their performance: 2-D NUCs provide more shaping gain at the cost of higher demapping complexity, while 1-D NUCs allow low-complexity demapping at slightly lower shaping gains. These NUCs are well suited for very large constellations sizes, such as 1k and 4k QAM.
KSP 제안 키워드
ATSC 3.0, Non Uniform Constellation, Quadrature-amplitude modulation(QAM), Signal-to-Noise, low-complexity, shaping gain, two-dimensional(2D)