{"title":"FFH/CDMA系统在移动无线电环境下的效率","authors":"U. Fiebig","doi":"10.1109/ICC.1994.368849","DOIUrl":null,"url":null,"abstract":"The spectral efficiency of fast frequency hopping/code division multiple access (FFH/CDMA) systems for the uplink (mobile-to-base) in a mobile radio environment is treated. An asynchronous system, Reed-Solomon (RS) codes for error correction, a frequency selective channel, and noncoherent detection at the hard-limited combining receiver are considered. It is shown how the parameters of the RS code, of the M-FSK signaling scheme, and of the frequency hopping system have to be chosen in order to maximize the spectral efficiency for a bit error rate of 10/sup -3/. The best performance is obtained for systems with large values for M where M is the parameter of the M-FSK signaling scheme.<<ETX>>","PeriodicalId":112111,"journal":{"name":"Proceedings of ICC/SUPERCOMM'94 - 1994 International Conference on Communications","volume":"47 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1994-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"10","resultStr":"{\"title\":\"The efficiency of FFH/CDMA systems in a mobile radio environment\",\"authors\":\"U. Fiebig\",\"doi\":\"10.1109/ICC.1994.368849\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The spectral efficiency of fast frequency hopping/code division multiple access (FFH/CDMA) systems for the uplink (mobile-to-base) in a mobile radio environment is treated. An asynchronous system, Reed-Solomon (RS) codes for error correction, a frequency selective channel, and noncoherent detection at the hard-limited combining receiver are considered. It is shown how the parameters of the RS code, of the M-FSK signaling scheme, and of the frequency hopping system have to be chosen in order to maximize the spectral efficiency for a bit error rate of 10/sup -3/. The best performance is obtained for systems with large values for M where M is the parameter of the M-FSK signaling scheme.<<ETX>>\",\"PeriodicalId\":112111,\"journal\":{\"name\":\"Proceedings of ICC/SUPERCOMM'94 - 1994 International Conference on Communications\",\"volume\":\"47 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1994-05-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"10\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Proceedings of ICC/SUPERCOMM'94 - 1994 International Conference on Communications\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/ICC.1994.368849\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Proceedings of ICC/SUPERCOMM'94 - 1994 International Conference on Communications","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ICC.1994.368849","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
The efficiency of FFH/CDMA systems in a mobile radio environment
The spectral efficiency of fast frequency hopping/code division multiple access (FFH/CDMA) systems for the uplink (mobile-to-base) in a mobile radio environment is treated. An asynchronous system, Reed-Solomon (RS) codes for error correction, a frequency selective channel, and noncoherent detection at the hard-limited combining receiver are considered. It is shown how the parameters of the RS code, of the M-FSK signaling scheme, and of the frequency hopping system have to be chosen in order to maximize the spectral efficiency for a bit error rate of 10/sup -3/. The best performance is obtained for systems with large values for M where M is the parameter of the M-FSK signaling scheme.<>
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