{"title":"实现超高速光传输的块交错编码调制的最优信号星座集和符号映射的EXIT图分析","authors":"Tao Liu, I. Djordjevic","doi":"10.1109/ICTON.2013.6603028","DOIUrl":null,"url":null,"abstract":"In this paper, we analyze the block-interleaved coded modulation with iterative decoding (BICM-ID) where the bit error rate is reduced by iteration of extrinsic information between a multilevel demapper and an LDPC decoder. Based on the mutual information concept of EXIT charts, a new mapping method based on optimal signal constellation (OSCD) is proposed that outperforms previously known ones. The simulation results have shown that optimized mappings for OSCD outperform natural mappings by 0.5 dB in 8-ary case and 0.6 dB in 16-ary case.","PeriodicalId":376939,"journal":{"name":"2013 15th International Conference on Transparent Optical Networks (ICTON)","volume":"360 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2013-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":"{\"title\":\"EXIT chart analysis of optimal signal constellation sets and symbol mappings for block-interleaved coded-modulation enabling ultra-high-speed optical transport\",\"authors\":\"Tao Liu, I. Djordjevic\",\"doi\":\"10.1109/ICTON.2013.6603028\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"In this paper, we analyze the block-interleaved coded modulation with iterative decoding (BICM-ID) where the bit error rate is reduced by iteration of extrinsic information between a multilevel demapper and an LDPC decoder. Based on the mutual information concept of EXIT charts, a new mapping method based on optimal signal constellation (OSCD) is proposed that outperforms previously known ones. The simulation results have shown that optimized mappings for OSCD outperform natural mappings by 0.5 dB in 8-ary case and 0.6 dB in 16-ary case.\",\"PeriodicalId\":376939,\"journal\":{\"name\":\"2013 15th International Conference on Transparent Optical Networks (ICTON)\",\"volume\":\"360 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2013-06-23\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"1\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2013 15th International Conference on Transparent Optical Networks (ICTON)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/ICTON.2013.6603028\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2013 15th International Conference on Transparent Optical Networks (ICTON)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ICTON.2013.6603028","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
EXIT chart analysis of optimal signal constellation sets and symbol mappings for block-interleaved coded-modulation enabling ultra-high-speed optical transport
In this paper, we analyze the block-interleaved coded modulation with iterative decoding (BICM-ID) where the bit error rate is reduced by iteration of extrinsic information between a multilevel demapper and an LDPC decoder. Based on the mutual information concept of EXIT charts, a new mapping method based on optimal signal constellation (OSCD) is proposed that outperforms previously known ones. The simulation results have shown that optimized mappings for OSCD outperform natural mappings by 0.5 dB in 8-ary case and 0.6 dB in 16-ary case.
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