{"id":"https://openalex.org/W2112171890","doi":"https://doi.org/10.1109/tvt.2009.2038925","title":"EM-Based Joint Channel Estimation and Data Detection for MIMO-CDMA Systems","display_name":"EM-Based Joint Channel Estimation and Data Detection for MIMO-CDMA Systems","publication_year":2009,"publication_date":"2009-12-21","ids":{"openalex":"https://openalex.org/W2112171890","doi":"https://doi.org/10.1109/tvt.2009.2038925","mag":"2112171890"},"language":"en","primary_location":{"id":"doi:10.1109/tvt.2009.2038925","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tvt.2009.2038925","pdf_url":null,"source":{"id":"https://openalex.org/S10936095","display_name":"IEEE Transactions on Vehicular Technology","issn_l":"0018-9545","issn":["0018-9545","1939-9359"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["Institute of Electrical and Electronics Engineers"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Transactions on Vehicular Technology","raw_type":"journal-article"},"type":"article","indexed_in":["crossref"],"open_access":{"is_oa":false,"oa_status":"closed","oa_url":null,"any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5038122084","display_name":"Ayman Assra","orcid":null},"institutions":[{"id":"https://openalex.org/I60158472","display_name":"Concordia University","ror":"https://ror.org/0420zvk78","country_code":"CA","type":"education","lineage":["https://openalex.org/I60158472"]}],"countries":["CA"],"is_corresponding":true,"raw_author_name":"A. Assra","raw_affiliation_strings":["Department of Electrical and Computer Engineering, Concordia University, Montreal, QUE, Canada","Dept. of Electr. & Comput. Eng., Concordia Univ., Montre\u0301al, QC, Canada"],"affiliations":[{"raw_affiliation_string":"Department of Electrical and Computer Engineering, Concordia University, Montreal, QUE, Canada","institution_ids":["https://openalex.org/I60158472"]},{"raw_affiliation_string":"Dept. of Electr. & Comput. Eng., Concordia Univ., Montre\u0301al, QC, Canada","institution_ids":["https://openalex.org/I60158472"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5005243649","display_name":"Walaa Hamouda","orcid":"https://orcid.org/0000-0001-6618-5851"},"institutions":[{"id":"https://openalex.org/I60158472","display_name":"Concordia University","ror":"https://ror.org/0420zvk78","country_code":"CA","type":"education","lineage":["https://openalex.org/I60158472"]}],"countries":["CA"],"is_corresponding":false,"raw_author_name":"W. Hamouda","raw_affiliation_strings":["Department of Electrical and Computer Engineering, Concordia University, Montreal, QUE, Canada","Dept. of Electr. & Comput. Eng., Concordia Univ., Montre\u0301al, QC, Canada"],"affiliations":[{"raw_affiliation_string":"Department of Electrical and Computer Engineering, Concordia University, Montreal, QUE, Canada","institution_ids":["https://openalex.org/I60158472"]},{"raw_affiliation_string":"Dept. of Electr. & Comput. Eng., Concordia Univ., Montre\u0301al, QC, Canada","institution_ids":["https://openalex.org/I60158472"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5085765243","display_name":"Amr Youssef","orcid":"https://orcid.org/0000-0002-4284-8646"},"institutions":[{"id":"https://openalex.org/I60158472","display_name":"Concordia University","ror":"https://ror.org/0420zvk78","country_code":"CA","type":"education","lineage":["https://openalex.org/I60158472"]}],"countries":["CA"],"is_corresponding":false,"raw_author_name":"A. Youssef","raw_affiliation_strings":["Concordia Institute for Information Systems Engineering, Concordia University, Montreal, QUE, Canada","[Concordia Institute for Information Systems Engineering, Concordia University, Montr\u00e9al, QC, Canada]"],"affiliations":[{"raw_affiliation_string":"Concordia Institute for Information Systems Engineering, Concordia University, Montreal, QUE, Canada","institution_ids":["https://openalex.org/I60158472"]},{"raw_affiliation_string":"[Concordia Institute for Information Systems Engineering, Concordia University, Montr\u00e9al, QC, Canada]","institution_ids":["https://openalex.org/I60158472"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":3,"corresponding_author_ids":["https://openalex.org/A5038122084"],"corresponding_institution_ids":["https://openalex.org/I60158472"],"apc_list":null,"apc_paid":null,"fwci":1.7945,"has_fulltext":false,"cited_by_count":17,"citation_normalized_percentile":{"value":0.85923881,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":90,"max":98},"biblio":{"volume":"59","issue":"3","first_page":"1205","last_page":"1216"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10125","display_name":"Advanced Wireless Communication Techniques","score":1.0,"subfield":{"id":"https://openalex.org/subfields/2208","display_name":"Electrical and Electronic Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T10125","display_name":"Advanced Wireless Communication Techniques","score":1.0,"subfield":{"id":"https://openalex.org/subfields/2208","display_name":"Electrical and Electronic Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10575","display_name":"Wireless Communication Networks Research","score":0.9998999834060669,"subfield":{"id":"https://openalex.org/subfields/1705","display_name":"Computer Networks and Communications"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10148","display_name":"Advanced MIMO Systems Optimization","score":0.9991999864578247,"subfield":{"id":"https://openalex.org/subfields/2208","display_name":"Electrical and Electronic Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/code-division-multiple-access","display_name":"Code division multiple access","score":0.7620697617530823},{"id":"https://openalex.org/keywords/mimo","display_name":"MIMO","score":0.7340113520622253},{"id":"https://openalex.org/keywords/rayleigh-fading","display_name":"Rayleigh fading","score":0.654542863368988},{"id":"https://openalex.org/keywords/channel","display_name":"Channel (broadcasting)","score":0.5886455178260803},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.5752450227737427},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.5697324872016907},{"id":"https://openalex.org/keywords/multiuser-detection","display_name":"Multiuser detection","score":0.5144970417022705},{"id":"https://openalex.org/keywords/fading","display_name":"Fading","score":0.49747851490974426},{"id":"https://openalex.org/keywords/expectation\u2013maximization-algorithm","display_name":"Expectation\u2013maximization algorithm","score":0.46654629707336426},{"id":"https://openalex.org/keywords/joint","display_name":"Joint (building)","score":0.4639081358909607},{"id":"https://openalex.org/keywords/detection-theory","display_name":"Detection theory","score":0.45502808690071106},{"id":"https://openalex.org/keywords/maximization","display_name":"Maximization","score":0.44549208879470825},{"id":"https://openalex.org/keywords/electronic-engineering","display_name":"Electronic engineering","score":0.3696727752685547},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.26846620440483093},{"id":"https://openalex.org/keywords/maximum-likelihood","display_name":"Maximum likelihood","score":0.2004474699497223},{"id":"https://openalex.org/keywords/mathematical-optimization","display_name":"Mathematical optimization","score":0.1984795331954956},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.19786110520362854},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.19455233216285706},{"id":"https://openalex.org/keywords/statistics","display_name":"Statistics","score":0.1498149037361145}],"concepts":[{"id":"https://openalex.org/C47696715","wikidata":"https://www.wikidata.org/wiki/Q233394","display_name":"Code division multiple access","level":2,"score":0.7620697617530823},{"id":"https://openalex.org/C207987634","wikidata":"https://www.wikidata.org/wiki/Q176862","display_name":"MIMO","level":3,"score":0.7340113520622253},{"id":"https://openalex.org/C56985126","wikidata":"https://www.wikidata.org/wiki/Q854039","display_name":"Rayleigh fading","level":4,"score":0.654542863368988},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.5886455178260803},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.5752450227737427},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.5697324872016907},{"id":"https://openalex.org/C2777104032","wikidata":"https://www.wikidata.org/wiki/Q16324514","display_name":"Multiuser detection","level":3,"score":0.5144970417022705},{"id":"https://openalex.org/C81978471","wikidata":"https://www.wikidata.org/wiki/Q1196572","display_name":"Fading","level":3,"score":0.49747851490974426},{"id":"https://openalex.org/C182081679","wikidata":"https://www.wikidata.org/wiki/Q1275153","display_name":"Expectation\u2013maximization algorithm","level":3,"score":0.46654629707336426},{"id":"https://openalex.org/C18555067","wikidata":"https://www.wikidata.org/wiki/Q8375051","display_name":"Joint (building)","level":2,"score":0.4639081358909607},{"id":"https://openalex.org/C137270730","wikidata":"https://www.wikidata.org/wiki/Q120811","display_name":"Detection theory","level":3,"score":0.45502808690071106},{"id":"https://openalex.org/C2776330181","wikidata":"https://www.wikidata.org/wiki/Q18358244","display_name":"Maximization","level":2,"score":0.44549208879470825},{"id":"https://openalex.org/C24326235","wikidata":"https://www.wikidata.org/wiki/Q126095","display_name":"Electronic engineering","level":1,"score":0.3696727752685547},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.26846620440483093},{"id":"https://openalex.org/C49781872","wikidata":"https://www.wikidata.org/wiki/Q1045555","display_name":"Maximum likelihood","level":2,"score":0.2004474699497223},{"id":"https://openalex.org/C126255220","wikidata":"https://www.wikidata.org/wiki/Q141495","display_name":"Mathematical optimization","level":1,"score":0.1984795331954956},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.19786110520362854},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.19455233216285706},{"id":"https://openalex.org/C105795698","wikidata":"https://www.wikidata.org/wiki/Q12483","display_name":"Statistics","level":1,"score":0.1498149037361145},{"id":"https://openalex.org/C94915269","wikidata":"https://www.wikidata.org/wiki/Q1834857","display_name":"Detector","level":2,"score":0.0},{"id":"https://openalex.org/C170154142","wikidata":"https://www.wikidata.org/wiki/Q150737","display_name":"Architectural engineering","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/tvt.2009.2038925","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tvt.2009.2038925","pdf_url":null,"source":{"id":"https://openalex.org/S10936095","display_name":"IEEE Transactions on Vehicular Technology","issn_l":"0018-9545","issn":["0018-9545","1939-9359"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["Institute of Electrical and Electronics Engineers"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Transactions on Vehicular Technology","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":33,"referenced_works":["https://openalex.org/W1985690171","https://openalex.org/W1988894495","https://openalex.org/W1990337704","https://openalex.org/W2041756079","https://openalex.org/W2049633694","https://openalex.org/W2095598449","https://openalex.org/W2103035110","https://openalex.org/W2107035398","https://openalex.org/W2107080958","https://openalex.org/W2110659753","https://openalex.org/W2111055833","https://openalex.org/W2114868985","https://openalex.org/W2116184237","https://openalex.org/W2118040894","https://openalex.org/W2119946711","https://openalex.org/W2132184801","https://openalex.org/W2136180922","https://openalex.org/W2136348741","https://openalex.org/W2143199196","https://openalex.org/W2145377142","https://openalex.org/W2147797598","https://openalex.org/W2149077164","https://openalex.org/W2153956130","https://openalex.org/W2154191559","https://openalex.org/W2161246190","https://openalex.org/W2163009302","https://openalex.org/W2163599171","https://openalex.org/W2168723131","https://openalex.org/W2798333393","https://openalex.org/W2912369344","https://openalex.org/W3129711340","https://openalex.org/W3133603318","https://openalex.org/W4245808720"],"related_works":["https://openalex.org/W1933375666","https://openalex.org/W2171748043","https://openalex.org/W4236271946","https://openalex.org/W2105308860","https://openalex.org/W1997358463","https://openalex.org/W2545278143","https://openalex.org/W174650468","https://openalex.org/W2143469310","https://openalex.org/W2367731216","https://openalex.org/W2614517342"],"abstract_inverted_index":{"In":[0],"this":[1],"paper,":[2],"we":[3],"present":[4],"an":[5],"iterative":[6],"joint":[7],"channel-estimation":[8],"and":[9,29,97],"data-detection":[10],"technique":[11],"for":[12,42],"multiple-input-multiple-output":[13],"(MIMO)":[14],"code-division":[15],"multiple-access":[16],"(CDMA)":[17],"systems":[18],"over":[19],"Rayleigh":[20],"fading":[21],"channels.":[22],"The":[23],"proposed":[24,92],"receiver":[25,72,93],"performs":[26],"channel":[27],"estimation":[28],"data":[30],"detection":[31],"using":[32,80],"the":[33,43,48,61,71,91],"expectation-maximization":[34],"(EM)":[35],"algorithm.":[36],"We":[37],"derive":[38],"a":[39],"closed-form":[40],"expression":[41],"optimized":[44],"weight":[45],"coefficients":[46],"of":[47],"EM":[49],"algorithm,":[50],"which":[51],"is":[52,94],"shown":[53],"to":[54,60],"provide":[55],"large":[56],"performance":[57,76],"improvement":[58],"relative":[59],"conventional":[62],"equal-weight":[63],"EM-based":[64],"signal":[65],"decomposition.":[66],"Our":[67],"results":[68,88],"show":[69],"that":[70,90],"can":[73],"achieve":[74],"near-optimum":[75],"with":[77],"modest":[78],"complexity":[79],"very":[81],"few":[82],"training":[83],"symbols.":[84],"Furthermore,":[85],"our":[86],"simulation":[87],"confirm":[89],"near-far":[95,103],"resistant":[96],"offers":[98],"fast":[99],"convergence":[100],"in":[101],"severe":[102],"scenarios.":[104]},"counts_by_year":[{"year":2018,"cited_by_count":2},{"year":2016,"cited_by_count":2},{"year":2015,"cited_by_count":1},{"year":2014,"cited_by_count":4},{"year":2013,"cited_by_count":2},{"year":2012,"cited_by_count":2}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}