{"title":"采用循环移位扩频码的MC-CDMA系统在双射线瑞利衰落信道上传输分集","authors":"Lin-Lin Fan, Jing Chen","doi":"10.1109/ICCS.2002.1182464","DOIUrl":null,"url":null,"abstract":"Transmit diversity is one of the best approaches to combat the fading channels in high data rate wireless systems. We present a new transmit diversity scheme for MC-CDMA systems. It is composed of multiple transmission branches. Each branch transmits the same data symbol synchronously with the same spread code but with different delay. A RAKE receiver is employed in the frequency domain to obtain space diversity gains. Analysis and simulation results show that performance benefits can be achieved compared to conventional MC-CDMA systems in Rayleigh fading channels.","PeriodicalId":401041,"journal":{"name":"The 8th International Conference on Communication Systems, 2002. ICCS 2002.","volume":"81 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2002-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"MC-CDMA systems with cyclic shift spreading codes transmit diversity over two-ray Rayleigh fading channels\",\"authors\":\"Lin-Lin Fan, Jing Chen\",\"doi\":\"10.1109/ICCS.2002.1182464\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Transmit diversity is one of the best approaches to combat the fading channels in high data rate wireless systems. We present a new transmit diversity scheme for MC-CDMA systems. It is composed of multiple transmission branches. Each branch transmits the same data symbol synchronously with the same spread code but with different delay. A RAKE receiver is employed in the frequency domain to obtain space diversity gains. Analysis and simulation results show that performance benefits can be achieved compared to conventional MC-CDMA systems in Rayleigh fading channels.\",\"PeriodicalId\":401041,\"journal\":{\"name\":\"The 8th International Conference on Communication Systems, 2002. ICCS 2002.\",\"volume\":\"81 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2002-11-25\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"The 8th International Conference on Communication Systems, 2002. ICCS 2002.\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/ICCS.2002.1182464\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"The 8th International Conference on Communication Systems, 2002. ICCS 2002.","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ICCS.2002.1182464","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
MC-CDMA systems with cyclic shift spreading codes transmit diversity over two-ray Rayleigh fading channels
Transmit diversity is one of the best approaches to combat the fading channels in high data rate wireless systems. We present a new transmit diversity scheme for MC-CDMA systems. It is composed of multiple transmission branches. Each branch transmits the same data symbol synchronously with the same spread code but with different delay. A RAKE receiver is employed in the frequency domain to obtain space diversity gains. Analysis and simulation results show that performance benefits can be achieved compared to conventional MC-CDMA systems in Rayleigh fading channels.