An equalization algorithm for CMMB systems over fast fading channels
A modified basis expansion (BE) model of time-varying channels is proposed, and a channel equalization algorithm based on the frequency-domain pilot tone for Chinese mobile multimedia broadcasting (CMMB) systems is also proposed. In the proposed algorithm, the scattered pilots in frequency domain ar...
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creator | Xiqing Zuo |
description | A modified basis expansion (BE) model of time-varying channels is proposed, and a channel equalization algorithm based on the frequency-domain pilot tone for Chinese mobile multimedia broadcasting (CMMB) systems is also proposed. In the proposed algorithm, the scattered pilots in frequency domain are used to estimate the channel values on the midpoint of the symbol duration, other channel values are exactly fitted by BE models. Therefore, the received sequences can be equalized in time domain. Considering the errors induced by the ICI, an iterative feedback method is proposed to restrain them. Simulation results show that the proposed algorithm has remarkable improvement comparing with the traditional LS estimation and linear interpolation algorithms over fast fading channels. |
doi_str_mv | 10.1109/ICEMI.2009.5274177 |
format | Conference Proceeding |
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In the proposed algorithm, the scattered pilots in frequency domain are used to estimate the channel values on the midpoint of the symbol duration, other channel values are exactly fitted by BE models. Therefore, the received sequences can be equalized in time domain. Considering the errors induced by the ICI, an iterative feedback method is proposed to restrain them. Simulation results show that the proposed algorithm has remarkable improvement comparing with the traditional LS estimation and linear interpolation algorithms over fast fading channels.</description><identifier>ISBN: 1424438632</identifier><identifier>ISBN: 9781424438631</identifier><identifier>EISBN: 1424438640</identifier><identifier>EISBN: 9781424438648</identifier><identifier>DOI: 10.1109/ICEMI.2009.5274177</identifier><identifier>LCCN: 2009900515</identifier><language>eng</language><publisher>IEEE</publisher><subject>channel equalization ; Digital multimedia broadcasting ; Fading ; Frequency domain analysis ; Frequency estimation ; Iterative algorithms ; iterative feedback ; Iterative methods ; Multimedia communication ; Multimedia systems ; OFDM ; Scattering ; time-varying channel ; Time-varying channels</subject><ispartof>2009 9th International Conference on Electronic Measurement & Instruments, 2009, p.3-79-3-83</ispartof><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://ieeexplore.ieee.org/document/5274177$$EHTML$$P50$$Gieee$$H</linktohtml><link.rule.ids>309,310,780,784,789,790,2058,27925,54920</link.rule.ids><linktorsrc>$$Uhttps://ieeexplore.ieee.org/document/5274177$$EView_record_in_IEEE$$FView_record_in_$$GIEEE</linktorsrc></links><search><creatorcontrib>Xiqing Zuo</creatorcontrib><title>An equalization algorithm for CMMB systems over fast fading channels</title><title>2009 9th International Conference on Electronic Measurement & Instruments</title><addtitle>ICEMI</addtitle><description>A modified basis expansion (BE) model of time-varying channels is proposed, and a channel equalization algorithm based on the frequency-domain pilot tone for Chinese mobile multimedia broadcasting (CMMB) systems is also proposed. In the proposed algorithm, the scattered pilots in frequency domain are used to estimate the channel values on the midpoint of the symbol duration, other channel values are exactly fitted by BE models. Therefore, the received sequences can be equalized in time domain. Considering the errors induced by the ICI, an iterative feedback method is proposed to restrain them. Simulation results show that the proposed algorithm has remarkable improvement comparing with the traditional LS estimation and linear interpolation algorithms over fast fading channels.</description><subject>channel equalization</subject><subject>Digital multimedia broadcasting</subject><subject>Fading</subject><subject>Frequency domain analysis</subject><subject>Frequency estimation</subject><subject>Iterative algorithms</subject><subject>iterative feedback</subject><subject>Iterative methods</subject><subject>Multimedia communication</subject><subject>Multimedia systems</subject><subject>OFDM</subject><subject>Scattering</subject><subject>time-varying channel</subject><subject>Time-varying channels</subject><isbn>1424438632</isbn><isbn>9781424438631</isbn><isbn>1424438640</isbn><isbn>9781424438648</isbn><fulltext>true</fulltext><rsrctype>conference_proceeding</rsrctype><creationdate>2009</creationdate><recordtype>conference_proceeding</recordtype><sourceid>6IE</sourceid><sourceid>RIE</sourceid><recordid>eNpFkMtOwzAURI1QJWjpD8DGP5Bw_bh2vCyhQKRGbLqvnNhpjfKAOCCVr6eISsxiRkcazWIIuWWQMgbmvsjXZZFyAJMi15JpfUHmTHIpRaYkXP6D4DMy_y0aAGR4RZYxvsFJEgWivCaPq576j0_bhm87haGntt0PY5gOHW2GkeZl-UDjMU6-i3T48iNtbJxO5kK_p_XB9r1v4w2ZNbaNfnnOBdk-rbf5S7J5fS7y1SYJBqbE-EZrXddOc-QWPVQOmipTyjOlpGUZZLWoJeMS0VVemcwxNI5pJSuNUIkFufubDd773fsYOjsed-cHxA-NQEyw</recordid><startdate>200908</startdate><enddate>200908</enddate><creator>Xiqing Zuo</creator><general>IEEE</general><scope>6IE</scope><scope>6IL</scope><scope>CBEJK</scope><scope>RIE</scope><scope>RIL</scope></search><sort><creationdate>200908</creationdate><title>An equalization algorithm for CMMB systems over fast fading channels</title><author>Xiqing Zuo</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-i90t-9ef777ccd7252a5e0bd0fb866e1664a1808c3c412455dbe698d159d1764b750b3</frbrgroupid><rsrctype>conference_proceedings</rsrctype><prefilter>conference_proceedings</prefilter><language>eng</language><creationdate>2009</creationdate><topic>channel equalization</topic><topic>Digital multimedia broadcasting</topic><topic>Fading</topic><topic>Frequency domain analysis</topic><topic>Frequency estimation</topic><topic>Iterative algorithms</topic><topic>iterative feedback</topic><topic>Iterative methods</topic><topic>Multimedia communication</topic><topic>Multimedia systems</topic><topic>OFDM</topic><topic>Scattering</topic><topic>time-varying channel</topic><topic>Time-varying channels</topic><toplevel>online_resources</toplevel><creatorcontrib>Xiqing Zuo</creatorcontrib><collection>IEEE Electronic Library (IEL) Conference Proceedings</collection><collection>IEEE Proceedings Order Plan All Online (POP All Online) 1998-present by volume</collection><collection>IEEE Xplore All Conference Proceedings</collection><collection>IEEE Electronic Library (IEL)</collection><collection>IEEE Proceedings Order Plans (POP All) 1998-Present</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Xiqing Zuo</au><format>book</format><genre>proceeding</genre><ristype>CONF</ristype><atitle>An equalization algorithm for CMMB systems over fast fading channels</atitle><btitle>2009 9th International Conference on Electronic Measurement & Instruments</btitle><stitle>ICEMI</stitle><date>2009-08</date><risdate>2009</risdate><spage>3-79</spage><epage>3-83</epage><pages>3-79-3-83</pages><isbn>1424438632</isbn><isbn>9781424438631</isbn><eisbn>1424438640</eisbn><eisbn>9781424438648</eisbn><abstract>A modified basis expansion (BE) model of time-varying channels is proposed, and a channel equalization algorithm based on the frequency-domain pilot tone for Chinese mobile multimedia broadcasting (CMMB) systems is also proposed. In the proposed algorithm, the scattered pilots in frequency domain are used to estimate the channel values on the midpoint of the symbol duration, other channel values are exactly fitted by BE models. Therefore, the received sequences can be equalized in time domain. Considering the errors induced by the ICI, an iterative feedback method is proposed to restrain them. Simulation results show that the proposed algorithm has remarkable improvement comparing with the traditional LS estimation and linear interpolation algorithms over fast fading channels.</abstract><pub>IEEE</pub><doi>10.1109/ICEMI.2009.5274177</doi></addata></record> |
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source | IEEE Electronic Library (IEL) Conference Proceedings |
subjects | channel equalization Digital multimedia broadcasting Fading Frequency domain analysis Frequency estimation Iterative algorithms iterative feedback Iterative methods Multimedia communication Multimedia systems OFDM Scattering time-varying channel Time-varying channels |
title | An equalization algorithm for CMMB systems over fast fading channels |
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