{"title":"高多普勒扩频下OFDMA信道估计的一种基于跟踪的BEM算法","authors":"M. Rabbi","doi":"10.1109/ICCITECHN.2012.6509705","DOIUrl":null,"url":null,"abstract":"In this paper, we investigate the Channel Impulse Response (CIR) estimation in an Orthogonal Frequency Division Multiple Access (OFDMA) uplink using a tracking based Basis Expansion Modeling (BEM) algorithm. By introducing a new tracking term in the BEM coefficients that gives the rate of change of the coefficients, the algorithm is particularly suitable for high mobility application. Specifically, the algorithm estimates the BEM coefficients for each OFDMA block in an iterative manner based on using a new objective function that takes into consideration first order variations in the coefficients of the current and adjacent blocks.","PeriodicalId":127060,"journal":{"name":"2012 15th International Conference on Computer and Information Technology (ICCIT)","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2012-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":"{\"title\":\"A tracking based BEM algorithm for OFDMA channel estimation in high Doppler spread\",\"authors\":\"M. Rabbi\",\"doi\":\"10.1109/ICCITECHN.2012.6509705\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"In this paper, we investigate the Channel Impulse Response (CIR) estimation in an Orthogonal Frequency Division Multiple Access (OFDMA) uplink using a tracking based Basis Expansion Modeling (BEM) algorithm. By introducing a new tracking term in the BEM coefficients that gives the rate of change of the coefficients, the algorithm is particularly suitable for high mobility application. Specifically, the algorithm estimates the BEM coefficients for each OFDMA block in an iterative manner based on using a new objective function that takes into consideration first order variations in the coefficients of the current and adjacent blocks.\",\"PeriodicalId\":127060,\"journal\":{\"name\":\"2012 15th International Conference on Computer and Information Technology (ICCIT)\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2012-12-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"1\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2012 15th International Conference on Computer and Information Technology (ICCIT)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/ICCITECHN.2012.6509705\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2012 15th International Conference on Computer and Information Technology (ICCIT)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ICCITECHN.2012.6509705","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
A tracking based BEM algorithm for OFDMA channel estimation in high Doppler spread
In this paper, we investigate the Channel Impulse Response (CIR) estimation in an Orthogonal Frequency Division Multiple Access (OFDMA) uplink using a tracking based Basis Expansion Modeling (BEM) algorithm. By introducing a new tracking term in the BEM coefficients that gives the rate of change of the coefficients, the algorithm is particularly suitable for high mobility application. Specifically, the algorithm estimates the BEM coefficients for each OFDMA block in an iterative manner based on using a new objective function that takes into consideration first order variations in the coefficients of the current and adjacent blocks.