{"title":"Performance analysis of pilot-channel-assisted log-likelihood-ratio selective combining","authors":"Xiaoli Chu, R. Murch","doi":"10.1109/PIMRC.2008.4699415","DOIUrl":null,"url":null,"abstract":"In this paper, we provide performance analysis for a pilot-channel-assisted log-likelihood-ratio selective combining (PCA-LLR-SC) scheme that is designed to support robust long-range low-rate UWB communications targeted by the IEEE 802.15.4a. Including the loss of orthogonality between data and pilot pulses caused by the UWB multipath channel, a closed-form bit-error-rate expression is derived, and verified by comparisons with simulation results. Our analytical result shows its accuracy in performance evaluation for the PCA-LLR-SC scheme and confirms that PCA-LLR-SC is able to support robust low-rate UWB communications in fast-fading multipath channels.","PeriodicalId":125554,"journal":{"name":"2008 IEEE 19th International Symposium on Personal, Indoor and Mobile Radio Communications","volume":"121 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2008-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2008 IEEE 19th International Symposium on Personal, Indoor and Mobile Radio Communications","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/PIMRC.2008.4699415","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
In this paper, we provide performance analysis for a pilot-channel-assisted log-likelihood-ratio selective combining (PCA-LLR-SC) scheme that is designed to support robust long-range low-rate UWB communications targeted by the IEEE 802.15.4a. Including the loss of orthogonality between data and pilot pulses caused by the UWB multipath channel, a closed-form bit-error-rate expression is derived, and verified by comparisons with simulation results. Our analytical result shows its accuracy in performance evaluation for the PCA-LLR-SC scheme and confirms that PCA-LLR-SC is able to support robust low-rate UWB communications in fast-fading multipath channels.
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