Simple constellation shaping for BICM-ID
A novel method of constellation mapping is presented for bit-interleaved coded modulation (BICM) by combining geometry shaping with probabilistic shaping.The transmitted signal points of a practical signal constellation approach the optimal input distribution by exploiting a many-to-one mapping with...
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| Format: | Article |
| Language: | zho |
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Editorial Department of Journal on Communications
2015-06-01
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| Series: | Tongxin xuebao |
| Subjects: | |
| Online Access: | http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2015117/ |
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| author | Qi LI Lin ZHOU Bo ZHANG Bao-ming BAI |
| author_facet | Qi LI Lin ZHOU Bo ZHANG Bao-ming BAI |
| author_sort | Qi LI |
| collection | DOAJ |
| description | A novel method of constellation mapping is presented for bit-interleaved coded modulation (BICM) by combining geometry shaping with probabilistic shaping.The transmitted signal points of a practical signal constellation approach the optimal input distribution by exploiting a many-to-one mapping with some signal points unused.With this method,shaping gain can be achieved conveniently with the help of iterative decoding between demodulation and decoder.The optimizations of signal constellation and the mapping from symbols to signal points are performed by the analysis of capacity and the extrinsic information transfer chart.Simulation results show that the proposed constellation mapping outperforms the traditional Gray mapping for BICM with iterative decoding in both AWGN and Rayleigh channels.And the shaping gain achieved can be improved with the increase of the constellation size. |
| format | Article |
| id | doaj-art-baeb058db69044caa55faf7b8bef01e4 |
| institution | Kabale University |
| issn | 1000-436X |
| language | zho |
| publishDate | 2015-06-01 |
| publisher | Editorial Department of Journal on Communications |
| record_format | Article |
| series | Tongxin xuebao |
| spelling | doaj-art-baeb058db69044caa55faf7b8bef01e42025-01-14T06:46:36ZzhoEditorial Department of Journal on CommunicationsTongxin xuebao1000-436X2015-06-013614915659693698Simple constellation shaping for BICM-IDQi LILin ZHOUBo ZHANGBao-ming BAIA novel method of constellation mapping is presented for bit-interleaved coded modulation (BICM) by combining geometry shaping with probabilistic shaping.The transmitted signal points of a practical signal constellation approach the optimal input distribution by exploiting a many-to-one mapping with some signal points unused.With this method,shaping gain can be achieved conveniently with the help of iterative decoding between demodulation and decoder.The optimizations of signal constellation and the mapping from symbols to signal points are performed by the analysis of capacity and the extrinsic information transfer chart.Simulation results show that the proposed constellation mapping outperforms the traditional Gray mapping for BICM with iterative decoding in both AWGN and Rayleigh channels.And the shaping gain achieved can be improved with the increase of the constellation size.http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2015117/bit-interleaved coded modulationiterative decodingconstellation mappingshaping gain |
| spellingShingle | Qi LI Lin ZHOU Bo ZHANG Bao-ming BAI Simple constellation shaping for BICM-ID Tongxin xuebao bit-interleaved coded modulation iterative decoding constellation mapping shaping gain |
| title | Simple constellation shaping for BICM-ID |
| title_full | Simple constellation shaping for BICM-ID |
| title_fullStr | Simple constellation shaping for BICM-ID |
| title_full_unstemmed | Simple constellation shaping for BICM-ID |
| title_short | Simple constellation shaping for BICM-ID |
| title_sort | simple constellation shaping for bicm id |
| topic | bit-interleaved coded modulation iterative decoding constellation mapping shaping gain |
| url | http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2015117/ |
| work_keys_str_mv | AT qili simpleconstellationshapingforbicmid AT linzhou simpleconstellationshapingforbicmid AT bozhang simpleconstellationshapingforbicmid AT baomingbai simpleconstellationshapingforbicmid |