{"title":"Comparison of two ARO protocols in a Rayleigh fading channel","authors":"J. Chuang","doi":"10.1109/VETEC.1990.110386","DOIUrl":null,"url":null,"abstract":"Go-back-n (GBN) and selective repeat (SR) protocols for automatic repeat request (ARQ) protocols are compared in a frequency-nonselective Rayleigh fading channel. The channel coding used is assumed to be for error detection only; therefore, the throughput reduction due to coding is smaller than if the coding were used for error correction. Only practical ARQ protocols that can be implemented in real-time applications with finite-buffering capability are considered. Protocols implemented in software are used in a computer-simulated fading channel to study the throughput of these protocols for data communications. It is found that SR is significantly superior to GBN when fading rate is high; this advantage decreases as fading becomes slower. Error detection combined with ARQ and diversity selection can provide reliable data communications in a Rayleigh fading channel.<<ETX>>","PeriodicalId":366352,"journal":{"name":"40th IEEE Conference on Vehicular Technology","volume":"1 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1990-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"9","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"40th IEEE Conference on Vehicular Technology","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/VETEC.1990.110386","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 9
Abstract
Go-back-n (GBN) and selective repeat (SR) protocols for automatic repeat request (ARQ) protocols are compared in a frequency-nonselective Rayleigh fading channel. The channel coding used is assumed to be for error detection only; therefore, the throughput reduction due to coding is smaller than if the coding were used for error correction. Only practical ARQ protocols that can be implemented in real-time applications with finite-buffering capability are considered. Protocols implemented in software are used in a computer-simulated fading channel to study the throughput of these protocols for data communications. It is found that SR is significantly superior to GBN when fading rate is high; this advantage decreases as fading becomes slower. Error detection combined with ARQ and diversity selection can provide reliable data communications in a Rayleigh fading channel.<>
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