{"title":"基于离散小波变换的OFDM系统信道估计新方法","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":"{\"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}","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}
A New Method of Channel Estimation for OFDM Systems Based on Discrete Wavelet Transform
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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