{"title":"Delay densities and adaptive equalization of indoor radio channels","authors":"T. Sexton, K. Pahlavan","doi":"10.1109/MILCOM.1988.13377","DOIUrl":null,"url":null,"abstract":"The authors analyze the benefits of using a decision feedback equalizer (DFE) in the indoor radio environment and examine the results of performance predictions for different channel modelings. A QPSK/DFE modem with second-order diversity can operate at a data rate that is an order of magnitude higher than that of a QPSK modem without equalization. A given set of measured profiles of the channel impulse response is interpreted using two different channel models: continuous and discrete. In the performance analysis, the continuous channel model is represented by a unique delay power spectrum while in the discrete channel modeling the channel is represented by the envelope of the delay power spectrum and the arrival rate of the paths.<<ETX>>","PeriodicalId":66166,"journal":{"name":"军事通信技术","volume":"311 1","pages":"109-113 vol.1"},"PeriodicalIF":0.0000,"publicationDate":"1988-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"军事通信技术","FirstCategoryId":"1093","ListUrlMain":"https://doi.org/10.1109/MILCOM.1988.13377","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 2
Abstract
The authors analyze the benefits of using a decision feedback equalizer (DFE) in the indoor radio environment and examine the results of performance predictions for different channel modelings. A QPSK/DFE modem with second-order diversity can operate at a data rate that is an order of magnitude higher than that of a QPSK modem without equalization. A given set of measured profiles of the channel impulse response is interpreted using two different channel models: continuous and discrete. In the performance analysis, the continuous channel model is represented by a unique delay power spectrum while in the discrete channel modeling the channel is represented by the envelope of the delay power spectrum and the arrival rate of the paths.<>
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