{"title":"8点星座分析——最优性与恢复","authors":"Nitin Jonathan Myers, R. Yasarla","doi":"10.1109/ICSPCOM.2016.7980597","DOIUrl":null,"url":null,"abstract":"This paper proves the optimality of circular 8QAM in modulating 3 bits/symbol over an AWGN channel, using a parametrised constellation. Incorporating power amplifier's limitations, we move to a differential scheme that modulates 2 bits/symbol and analytically prove that maximum energy efficiency for this scheme can be achieved when 8PSK is the underlying constellation, and not circular 8QAM. We also discuss about non data aided carrier frequency offset estimation when circular 8QAM is used and compare the performance of modified Mth power algorithm with the generalised QPSK partitioning algorithm.","PeriodicalId":213713,"journal":{"name":"2016 International Conference on Signal Processing and Communication (ICSC)","volume":"296 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2016-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Analysis of 8 point constellations - optimality and recovery\",\"authors\":\"Nitin Jonathan Myers, R. Yasarla\",\"doi\":\"10.1109/ICSPCOM.2016.7980597\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"This paper proves the optimality of circular 8QAM in modulating 3 bits/symbol over an AWGN channel, using a parametrised constellation. Incorporating power amplifier's limitations, we move to a differential scheme that modulates 2 bits/symbol and analytically prove that maximum energy efficiency for this scheme can be achieved when 8PSK is the underlying constellation, and not circular 8QAM. We also discuss about non data aided carrier frequency offset estimation when circular 8QAM is used and compare the performance of modified Mth power algorithm with the generalised QPSK partitioning algorithm.\",\"PeriodicalId\":213713,\"journal\":{\"name\":\"2016 International Conference on Signal Processing and Communication (ICSC)\",\"volume\":\"296 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2016-12-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2016 International Conference on Signal Processing and Communication (ICSC)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/ICSPCOM.2016.7980597\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2016 International Conference on Signal Processing and Communication (ICSC)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ICSPCOM.2016.7980597","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Analysis of 8 point constellations - optimality and recovery
This paper proves the optimality of circular 8QAM in modulating 3 bits/symbol over an AWGN channel, using a parametrised constellation. Incorporating power amplifier's limitations, we move to a differential scheme that modulates 2 bits/symbol and analytically prove that maximum energy efficiency for this scheme can be achieved when 8PSK is the underlying constellation, and not circular 8QAM. We also discuss about non data aided carrier frequency offset estimation when circular 8QAM is used and compare the performance of modified Mth power algorithm with the generalised QPSK partitioning algorithm.
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