CODING AND MODULATION APPARATUS USING NON-UNIFORM CONSTELLATION |
|||||||
| 申请号 | US15899501 | 申请日 | 2018-02-20 | 公开(公告)号 | US20180254939A1 | 公开(公告)日 | 2018-09-06 |
| 申请人 | SONY CORPORATION; | 发明人 | Lothar STADELMEIER; Nabil Sven Loghin; Jan Zoellner; | ||||
| 摘要 | A coding and modulation apparatus and method are presented. The apparatus (10) comprises an encoder (11) that encodes input data into cell words, and a modulator (12) that modulates said cell words into constellation values of a non-uniform constellation. The modulator (12) is configured to use, based on the total number M of constellation points of the constellation and the signal-to-noise ratio SNR in dB, a non-uniform constellation from a group of constellations comprising one or more of predetermined constellations defined by the constellation position vector w0 . . . b−1, wherein b=M/4. | ||||||
| 权利要求 | |||||||
| 说明书全文 | |||||||
QQ群二维码
意见反馈
意见反馈