{"title":"OFDM无线电链路的建模与仿真","authors":"R. Achatz","doi":"10.1109/WCC.1997.622285","DOIUrl":null,"url":null,"abstract":"This paper describes how a fixed orthogonal frequency division multiplexing (OFDM) radio link operating in a frequency-selective channel has been modeled in a software simulation environment. This model will allow communications engineers to optimize OFDM radio link parameters. The following model parameters are adjustable: (1) number of bits per symbol; (2) number of symbols per OFDM block; (3) number of guard samples; (4) number of virtual carriers; (5) square root raised cosine excess bandwidth; (6) multipath amplitude, phase, and delay; (7) frequency shift; and (8) amplifier backoff. Example results showing OFDM radio link performance in a two-ray multipath channel are discussed.","PeriodicalId":439434,"journal":{"name":"Proceedings of 1997 Wireless Communications Conference","volume":"48 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1997-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"6","resultStr":"{\"title\":\"Modeling and simulation of a OFDM radio link\",\"authors\":\"R. Achatz\",\"doi\":\"10.1109/WCC.1997.622285\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"This paper describes how a fixed orthogonal frequency division multiplexing (OFDM) radio link operating in a frequency-selective channel has been modeled in a software simulation environment. This model will allow communications engineers to optimize OFDM radio link parameters. The following model parameters are adjustable: (1) number of bits per symbol; (2) number of symbols per OFDM block; (3) number of guard samples; (4) number of virtual carriers; (5) square root raised cosine excess bandwidth; (6) multipath amplitude, phase, and delay; (7) frequency shift; and (8) amplifier backoff. Example results showing OFDM radio link performance in a two-ray multipath channel are discussed.\",\"PeriodicalId\":439434,\"journal\":{\"name\":\"Proceedings of 1997 Wireless Communications Conference\",\"volume\":\"48 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1997-08-11\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"6\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Proceedings of 1997 Wireless Communications Conference\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/WCC.1997.622285\",\"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 1997 Wireless Communications Conference","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/WCC.1997.622285","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
This paper describes how a fixed orthogonal frequency division multiplexing (OFDM) radio link operating in a frequency-selective channel has been modeled in a software simulation environment. This model will allow communications engineers to optimize OFDM radio link parameters. The following model parameters are adjustable: (1) number of bits per symbol; (2) number of symbols per OFDM block; (3) number of guard samples; (4) number of virtual carriers; (5) square root raised cosine excess bandwidth; (6) multipath amplitude, phase, and delay; (7) frequency shift; and (8) amplifier backoff. Example results showing OFDM radio link performance in a two-ray multipath channel are discussed.
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