{"title":"陆地移动卫星通信多址技术性能分析","authors":"Ramjee Prasad, R. V. Nee, R. N. V. Wolfswinkel","doi":"10.1109/GLOCOM.1994.512694","DOIUrl":null,"url":null,"abstract":"An analysis is presented of the throughput and delay characteristics of a land-mobile satellite channel. Both slotted ALOHA and slotted direct-sequence CDMA (code division multiple access) are evaluated, using binary phase shift keying (BPSK) modulation and forward error correction coding (FEC). In the case of CDMA, the application of maximal ratio combining is also taken into account. Numerical results are presented for arbitrary code lengths and for specific values of the number of resolvable paths. It is shown that CDMA can offer a substantial improvement over slotted ALOHA, especially when error correction and path diversity are applied.","PeriodicalId":323626,"journal":{"name":"1994 IEEE GLOBECOM. Communications: The Global Bridge","volume":"94 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1994-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"4","resultStr":"{\"title\":\"Performance analysis of multiple access techniques for land-mobile satellite communications\",\"authors\":\"Ramjee Prasad, R. V. Nee, R. N. V. Wolfswinkel\",\"doi\":\"10.1109/GLOCOM.1994.512694\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"An analysis is presented of the throughput and delay characteristics of a land-mobile satellite channel. Both slotted ALOHA and slotted direct-sequence CDMA (code division multiple access) are evaluated, using binary phase shift keying (BPSK) modulation and forward error correction coding (FEC). In the case of CDMA, the application of maximal ratio combining is also taken into account. Numerical results are presented for arbitrary code lengths and for specific values of the number of resolvable paths. It is shown that CDMA can offer a substantial improvement over slotted ALOHA, especially when error correction and path diversity are applied.\",\"PeriodicalId\":323626,\"journal\":{\"name\":\"1994 IEEE GLOBECOM. Communications: The Global Bridge\",\"volume\":\"94 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1994-11-28\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"4\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"1994 IEEE GLOBECOM. Communications: The Global Bridge\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/GLOCOM.1994.512694\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"1994 IEEE GLOBECOM. Communications: The Global Bridge","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/GLOCOM.1994.512694","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Performance analysis of multiple access techniques for land-mobile satellite communications
An analysis is presented of the throughput and delay characteristics of a land-mobile satellite channel. Both slotted ALOHA and slotted direct-sequence CDMA (code division multiple access) are evaluated, using binary phase shift keying (BPSK) modulation and forward error correction coding (FEC). In the case of CDMA, the application of maximal ratio combining is also taken into account. Numerical results are presented for arbitrary code lengths and for specific values of the number of resolvable paths. It is shown that CDMA can offer a substantial improvement over slotted ALOHA, especially when error correction and path diversity are applied.
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