{"title":"基于新型S和pi决策Demapper的DSRC系统性能改进","authors":"J. Mar, Chi-Cheng Kuo","doi":"10.4236/wsn.2009.14033","DOIUrl":null,"url":null,"abstract":"Based on the constellation diagram of the different modulations, a novel S and pi -decision rules are designed for the analog demapper of the OFDM systems. The DSRC system is chosen as an OFDM platform to compare the performance among the proposed S and pi -decision decoder, hard-decision and soft-decision decoders. Simulation results demonstrate that both the complexity and performance of S and pi -decision demapper used for M-ary QAM OFDM system can be greatly improved. The number of decisions between the received symbol and constellation points can be simplified to look up table log2 M times for M-ary QAM OFDM system.","PeriodicalId":360127,"journal":{"name":"ICC Workshops - 2008 IEEE International Conference on Communications Workshops","volume":"53 4 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2008-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"4","resultStr":"{\"title\":\"Performance Improvement of the DSRC System Using a Novel S and PI-Decision Demapper\",\"authors\":\"J. Mar, Chi-Cheng Kuo\",\"doi\":\"10.4236/wsn.2009.14033\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Based on the constellation diagram of the different modulations, a novel S and pi -decision rules are designed for the analog demapper of the OFDM systems. The DSRC system is chosen as an OFDM platform to compare the performance among the proposed S and pi -decision decoder, hard-decision and soft-decision decoders. Simulation results demonstrate that both the complexity and performance of S and pi -decision demapper used for M-ary QAM OFDM system can be greatly improved. The number of decisions between the received symbol and constellation points can be simplified to look up table log2 M times for M-ary QAM OFDM system.\",\"PeriodicalId\":360127,\"journal\":{\"name\":\"ICC Workshops - 2008 IEEE International Conference on Communications Workshops\",\"volume\":\"53 4 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2008-05-19\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"4\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"ICC Workshops - 2008 IEEE International Conference on Communications Workshops\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.4236/wsn.2009.14033\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"ICC Workshops - 2008 IEEE International Conference on Communications Workshops","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.4236/wsn.2009.14033","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 4
摘要
基于不同调制的星座图，设计了一种新的S和pi判定规则，用于OFDM系统的模拟demapper。选择DSRC系统作为OFDM平台，比较了所提出的S和pi判决解码器、硬判决解码器和软判决解码器的性能。仿真结果表明，将S和pi -decision demapper应用于m - m QAM OFDM系统可以大大提高复杂度和性能。对于M级QAM OFDM系统，接收符号点与星座点之间的决策次数可简化为查找表log2m次。
Performance Improvement of the DSRC System Using a Novel S and PI-Decision Demapper
Based on the constellation diagram of the different modulations, a novel S and pi -decision rules are designed for the analog demapper of the OFDM systems. The DSRC system is chosen as an OFDM platform to compare the performance among the proposed S and pi -decision decoder, hard-decision and soft-decision decoders. Simulation results demonstrate that both the complexity and performance of S and pi -decision demapper used for M-ary QAM OFDM system can be greatly improved. The number of decisions between the received symbol and constellation points can be simplified to look up table log2 M times for M-ary QAM OFDM system.
求助内容：
应助结果提醒方式：
京公网安备 11010802042870号
