{"title":"使用SBF和TBF阵列天线的蜂窝CDMA系统的性能","authors":"Hyunduk Kang, Insoo Koo, Miheung Choe, Kiseon Kim","doi":"10.1109/ISSSTA.2004.1371727","DOIUrl":null,"url":null,"abstract":"We investigate the performance of cellular CDMA systems through adopting two types of array antennas, switched beam forming (SBF) and tracking beam forming (TBF) in the base station. Also, in order to enhance the system performance, we optimize the beam shape using sidelobe-to-main-beam-energy ratio (SMER) defined by the energy ratio of the sidelobe region and main beam region. As a result, it is observed that the TBF method gives about 30 capacity improvement over the SBF method under 1 probability requirement. In addition, an optimized beam shape using SMER provides maximally 8 comparing conventional non-optimized beam shapes under 1 probability requirement when we use 5 and 7 beams per sector with the SBF method, respectively.","PeriodicalId":340769,"journal":{"name":"Eighth IEEE International Symposium on Spread Spectrum Techniques and Applications - Programme and Book of Abstracts (IEEE Cat. No.04TH8738)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2004-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Performance of cellular CDMA systems using SBF and TBF array antennas\",\"authors\":\"Hyunduk Kang, Insoo Koo, Miheung Choe, Kiseon Kim\",\"doi\":\"10.1109/ISSSTA.2004.1371727\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"We investigate the performance of cellular CDMA systems through adopting two types of array antennas, switched beam forming (SBF) and tracking beam forming (TBF) in the base station. Also, in order to enhance the system performance, we optimize the beam shape using sidelobe-to-main-beam-energy ratio (SMER) defined by the energy ratio of the sidelobe region and main beam region. As a result, it is observed that the TBF method gives about 30 capacity improvement over the SBF method under 1 probability requirement. In addition, an optimized beam shape using SMER provides maximally 8 comparing conventional non-optimized beam shapes under 1 probability requirement when we use 5 and 7 beams per sector with the SBF method, respectively.\",\"PeriodicalId\":340769,\"journal\":{\"name\":\"Eighth IEEE International Symposium on Spread Spectrum Techniques and Applications - Programme and Book of Abstracts (IEEE Cat. No.04TH8738)\",\"volume\":\"21 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2004-08-30\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Eighth IEEE International Symposium on Spread Spectrum Techniques and Applications - Programme and Book of Abstracts (IEEE Cat. No.04TH8738)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/ISSSTA.2004.1371727\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Eighth IEEE International Symposium on Spread Spectrum Techniques and Applications - Programme and Book of Abstracts (IEEE Cat. No.04TH8738)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ISSSTA.2004.1371727","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Performance of cellular CDMA systems using SBF and TBF array antennas
We investigate the performance of cellular CDMA systems through adopting two types of array antennas, switched beam forming (SBF) and tracking beam forming (TBF) in the base station. Also, in order to enhance the system performance, we optimize the beam shape using sidelobe-to-main-beam-energy ratio (SMER) defined by the energy ratio of the sidelobe region and main beam region. As a result, it is observed that the TBF method gives about 30 capacity improvement over the SBF method under 1 probability requirement. In addition, an optimized beam shape using SMER provides maximally 8 comparing conventional non-optimized beam shapes under 1 probability requirement when we use 5 and 7 beams per sector with the SBF method, respectively.
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