{"title":"快速时间色散信道中的下行DSTBC-WCDMA","authors":"Edwin M. Umali, Y. Yamao","doi":"10.1109/ISWCS.2007.4392391","DOIUrl":null,"url":null,"abstract":"In this paper, the differential space-time block code (DSTBC) modulation is applied to the downlink transmission of the WCDMA system to enhance system performance in fast- varying time-dispersive channels. The effect of scrambling operation is also considered to improve correlation between users' signal. Among the receivers presented here, the differential space-time block code deterministic de-prefix combined (D-Det-DP-C) receiver shows the best performance. Since DSTBC-WCDMA is a differential modulation scheme, the best performance is obtained under the condition that the receiver has complete information regarding the interferers to minimize the effect of multipath and multi-user interference.","PeriodicalId":261480,"journal":{"name":"2007 4th International Symposium on Wireless Communication Systems","volume":"25 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2007-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":"{\"title\":\"Downlink DSTBC-WCDMA in a Fast Time-Dispersive Channel\",\"authors\":\"Edwin M. Umali, Y. Yamao\",\"doi\":\"10.1109/ISWCS.2007.4392391\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"In this paper, the differential space-time block code (DSTBC) modulation is applied to the downlink transmission of the WCDMA system to enhance system performance in fast- varying time-dispersive channels. The effect of scrambling operation is also considered to improve correlation between users' signal. Among the receivers presented here, the differential space-time block code deterministic de-prefix combined (D-Det-DP-C) receiver shows the best performance. Since DSTBC-WCDMA is a differential modulation scheme, the best performance is obtained under the condition that the receiver has complete information regarding the interferers to minimize the effect of multipath and multi-user interference.\",\"PeriodicalId\":261480,\"journal\":{\"name\":\"2007 4th International Symposium on Wireless Communication Systems\",\"volume\":\"25 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2007-12-04\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"1\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2007 4th International Symposium on Wireless Communication Systems\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/ISWCS.2007.4392391\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2007 4th International Symposium on Wireless Communication Systems","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ISWCS.2007.4392391","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Downlink DSTBC-WCDMA in a Fast Time-Dispersive Channel
In this paper, the differential space-time block code (DSTBC) modulation is applied to the downlink transmission of the WCDMA system to enhance system performance in fast- varying time-dispersive channels. The effect of scrambling operation is also considered to improve correlation between users' signal. Among the receivers presented here, the differential space-time block code deterministic de-prefix combined (D-Det-DP-C) receiver shows the best performance. Since DSTBC-WCDMA is a differential modulation scheme, the best performance is obtained under the condition that the receiver has complete information regarding the interferers to minimize the effect of multipath and multi-user interference.
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