{"title":"A New Method of Channel Estimation for OFDM Systems Based on Discrete Wavelet Transform","authors":"Shi Hui, Dongfeng Zhuo, Yong Yang","doi":"10.1109/FBIE.2008.72","DOIUrl":null,"url":null,"abstract":"In the near future along with the advent of WIMAX, 3GPP has also started a long-term evolution of UMTS technology project. Presently, the basic channel transmission technology of uplink and downlink has been determined, up-SC (single carrier)-FDMA, downlink using orthogonal frequency division multiplexing technology. Characteristic specifically for the wireless decaying channel, a new channel estimation method on OFDM systems was given based on discrete wavelet transform in this article. Channel estimation signal was adapted by the discrete wavelet transform in the time- frequency and transform domain. Such method could better track channel change and eliminate the noise remarkably in the received pilot signal, and the precision of channel estimation had been improved.","PeriodicalId":415908,"journal":{"name":"2008 International Seminar on Future BioMedical Information Engineering","volume":"2012 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2008-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2008 International Seminar on Future BioMedical Information Engineering","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/FBIE.2008.72","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 the near future along with the advent of WIMAX, 3GPP has also started a long-term evolution of UMTS technology project. Presently, the basic channel transmission technology of uplink and downlink has been determined, up-SC (single carrier)-FDMA, downlink using orthogonal frequency division multiplexing technology. Characteristic specifically for the wireless decaying channel, a new channel estimation method on OFDM systems was given based on discrete wavelet transform in this article. Channel estimation signal was adapted by the discrete wavelet transform in the time- frequency and transform domain. Such method could better track channel change and eliminate the noise remarkably in the received pilot signal, and the precision of channel estimation had been improved.
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