{"id":"https://openalex.org/W2207172903","doi":"https://doi.org/10.1109/tcomm.2016.2593924","title":"Distributed Channel Estimation and Pilot Contamination Analysis for Massive MIMO-OFDM Systems","display_name":"Distributed Channel Estimation and Pilot Contamination Analysis for Massive MIMO-OFDM Systems","publication_year":2016,"publication_date":"2016-07-22","ids":{"openalex":"https://openalex.org/W2207172903","doi":"https://doi.org/10.1109/tcomm.2016.2593924","mag":"2207172903"},"language":"en","primary_location":{"id":"doi:10.1109/tcomm.2016.2593924","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tcomm.2016.2593924","pdf_url":null,"source":{"id":"https://openalex.org/S196647941","display_name":"IEEE Transactions on Communications","issn_l":"0090-6778","issn":["0090-6778","1558-0857"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310316002","host_organization_name":"IEEE Communications Society","host_organization_lineage":["https://openalex.org/P4310316002","https://openalex.org/P4310319808"],"host_organization_lineage_names":["IEEE Communications Society","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 Communications","raw_type":"journal-article"},"type":"article","indexed_in":["arxiv","crossref","datacite"],"open_access":{"is_oa":true,"oa_status":"green","oa_url":"https://arxiv.org/pdf/1507.08150","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5078057594","display_name":"Alam Zaib","orcid":"https://orcid.org/0000-0003-1381-2799"},"institutions":[{"id":"https://openalex.org/I16076960","display_name":"COMSATS University Islamabad","ror":"https://ror.org/00nqqvk19","country_code":"PK","type":"education","lineage":["https://openalex.org/I16076960"]}],"countries":["PK"],"is_corresponding":false,"raw_author_name":"Alam Zaib","raw_affiliation_strings":["Department of Electrical Engineering, COMSATS Institute of Information Technology, Abbottabad, Pakistan","Department of Electrical Engineering COMSATS Institute of Information Technology Abbottabad Pakistan"],"raw_orcid":"https://orcid.org/0000-0003-1381-2799","affiliations":[{"raw_affiliation_string":"Department of Electrical Engineering, COMSATS Institute of Information Technology, Abbottabad, Pakistan","institution_ids":["https://openalex.org/I16076960"]},{"raw_affiliation_string":"Department of Electrical Engineering COMSATS Institute of Information Technology Abbottabad Pakistan","institution_ids":["https://openalex.org/I16076960"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5000165797","display_name":"Mudassir Masood","orcid":"https://orcid.org/0000-0003-0462-7874"},"institutions":[{"id":"https://openalex.org/I134085113","display_name":"King Fahd University of Petroleum and Minerals","ror":"https://ror.org/03yez3163","country_code":"SA","type":"education","lineage":["https://openalex.org/I134085113"]}],"countries":["SA"],"is_corresponding":false,"raw_author_name":"Mudassir Masood","raw_affiliation_strings":["Department of Electrical Engineering, King Fahd University of Petroleum & Minerals, Dhahran, Saudi Arabia","Department of Electrical Engineering, King Fahd University of Petroleum and Minerals, Dhahran, Saudi Arabia"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Electrical Engineering, King Fahd University of Petroleum & Minerals, Dhahran, Saudi Arabia","institution_ids":["https://openalex.org/I134085113"]},{"raw_affiliation_string":"Department of Electrical Engineering, King Fahd University of Petroleum and Minerals, Dhahran, Saudi Arabia","institution_ids":["https://openalex.org/I134085113"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5102002504","display_name":"Anum Ali","orcid":"https://orcid.org/0000-0001-5332-8745"},"institutions":[{"id":"https://openalex.org/I86519309","display_name":"The University of Texas at Austin","ror":"https://ror.org/00hj54h04","country_code":"US","type":"education","lineage":["https://openalex.org/I86519309"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Anum Ali","raw_affiliation_strings":["Department of Electrical and Computer Engineering, The University of Texas at Austin, Austin, TX, USA","Dept. of Electrical and Computer Engineering, The University of Texas at Austin, Austin, TX, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Electrical and Computer Engineering, The University of Texas at Austin, Austin, TX, USA","institution_ids":["https://openalex.org/I86519309"]},{"raw_affiliation_string":"Dept. of Electrical and Computer Engineering, The University of Texas at Austin, Austin, TX, USA","institution_ids":["https://openalex.org/I86519309"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5101767475","display_name":"Weiyu Xu","orcid":"https://orcid.org/0000-0003-4256-6072"},"institutions":[{"id":"https://openalex.org/I126307644","display_name":"University of Iowa","ror":"https://ror.org/036jqmy94","country_code":"US","type":"education","lineage":["https://openalex.org/I126307644"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Weiyu Xu","raw_affiliation_strings":["Department of Electrical and Computer Engineering, The University of Iowa, Iowa City, IA, USA","Department of Electrical and Computer Engineering, the University of Iowa, Iowa City, IA, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Electrical and Computer Engineering, The University of Iowa, Iowa City, IA, USA","institution_ids":["https://openalex.org/I126307644"]},{"raw_affiliation_string":"Department of Electrical and Computer Engineering, the University of Iowa, Iowa City, IA, USA","institution_ids":["https://openalex.org/I126307644"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5066119580","display_name":"Tareq Y. Al-Naffouri","orcid":"https://orcid.org/0000-0001-6955-4720"},"institutions":[{"id":"https://openalex.org/I71920554","display_name":"King Abdullah University of Science and Technology","ror":"https://ror.org/01q3tbs38","country_code":"SA","type":"education","lineage":["https://openalex.org/I71920554"]}],"countries":["SA"],"is_corresponding":false,"raw_author_name":"Tareq Y. Al-Naffouri","raw_affiliation_strings":["Department of Electrical Engineering, King Abdullah University of Science and Technology, Thuwal, Saudi Arabia","[Department of Electrical Engineering, King Abdullah University of Science and Technology, Thuwal, Saudi Arabia]"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Electrical Engineering, King Abdullah University of Science and Technology, Thuwal, Saudi Arabia","institution_ids":["https://openalex.org/I71920554"]},{"raw_affiliation_string":"[Department of Electrical Engineering, King Abdullah University of Science and Technology, Thuwal, Saudi Arabia]","institution_ids":["https://openalex.org/I71920554"]}]}],"institutions":[],"countries_distinct_count":3,"institutions_distinct_count":5,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":0.4396,"has_fulltext":true,"cited_by_count":5,"citation_normalized_percentile":{"value":0.66807387,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":96},"biblio":{"volume":"64","issue":"11","first_page":"4607","last_page":"4621"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10148","display_name":"Advanced MIMO Systems Optimization","score":0.9998999834060669,"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/T10148","display_name":"Advanced MIMO Systems Optimization","score":0.9998999834060669,"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/T10125","display_name":"Advanced Wireless Communication Techniques","score":0.9998000264167786,"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/T10796","display_name":"Cooperative Communication and Network Coding","score":0.9994999766349792,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/mimo","display_name":"MIMO","score":0.7802878618240356},{"id":"https://openalex.org/keywords/orthogonal-frequency-division-multiplexing","display_name":"Orthogonal frequency-division multiplexing","score":0.6041147708892822},{"id":"https://openalex.org/keywords/minimum-mean-square-error","display_name":"Minimum mean square error","score":0.5853261947631836},{"id":"https://openalex.org/keywords/mimo-ofdm","display_name":"MIMO-OFDM","score":0.5764809846878052},{"id":"https://openalex.org/keywords/channel","display_name":"Channel (broadcasting)","score":0.5735071897506714},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.5694428086280823},{"id":"https://openalex.org/keywords/telecommunications-link","display_name":"Telecommunications link","score":0.5430142879486084},{"id":"https://openalex.org/keywords/spectral-efficiency","display_name":"Spectral efficiency","score":0.49184107780456543},{"id":"https://openalex.org/keywords/mean-squared-error","display_name":"Mean squared error","score":0.48596227169036865},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.4670848846435547},{"id":"https://openalex.org/keywords/antenna","display_name":"Antenna (radio)","score":0.45999348163604736},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.3146976828575134},{"id":"https://openalex.org/keywords/statistics","display_name":"Statistics","score":0.28264981508255005},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.24097952246665955}],"concepts":[{"id":"https://openalex.org/C207987634","wikidata":"https://www.wikidata.org/wiki/Q176862","display_name":"MIMO","level":3,"score":0.7802878618240356},{"id":"https://openalex.org/C40409654","wikidata":"https://www.wikidata.org/wiki/Q375889","display_name":"Orthogonal frequency-division multiplexing","level":3,"score":0.6041147708892822},{"id":"https://openalex.org/C90652560","wikidata":"https://www.wikidata.org/wiki/Q11091747","display_name":"Minimum mean square error","level":3,"score":0.5853261947631836},{"id":"https://openalex.org/C130946814","wikidata":"https://www.wikidata.org/wiki/Q5988271","display_name":"MIMO-OFDM","level":4,"score":0.5764809846878052},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.5735071897506714},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.5694428086280823},{"id":"https://openalex.org/C138660444","wikidata":"https://www.wikidata.org/wiki/Q5607897","display_name":"Telecommunications link","level":2,"score":0.5430142879486084},{"id":"https://openalex.org/C137246740","wikidata":"https://www.wikidata.org/wiki/Q583970","display_name":"Spectral efficiency","level":3,"score":0.49184107780456543},{"id":"https://openalex.org/C139945424","wikidata":"https://www.wikidata.org/wiki/Q1940696","display_name":"Mean squared error","level":2,"score":0.48596227169036865},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.4670848846435547},{"id":"https://openalex.org/C21822782","wikidata":"https://www.wikidata.org/wiki/Q131214","display_name":"Antenna (radio)","level":2,"score":0.45999348163604736},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.3146976828575134},{"id":"https://openalex.org/C105795698","wikidata":"https://www.wikidata.org/wiki/Q12483","display_name":"Statistics","level":1,"score":0.28264981508255005},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.24097952246665955},{"id":"https://openalex.org/C185429906","wikidata":"https://www.wikidata.org/wiki/Q1130160","display_name":"Estimator","level":2,"score":0.0}],"mesh":[],"locations_count":5,"locations":[{"id":"doi:10.1109/tcomm.2016.2593924","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tcomm.2016.2593924","pdf_url":null,"source":{"id":"https://openalex.org/S196647941","display_name":"IEEE Transactions on Communications","issn_l":"0090-6778","issn":["0090-6778","1558-0857"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310316002","host_organization_name":"IEEE Communications Society","host_organization_lineage":["https://openalex.org/P4310316002","https://openalex.org/P4310319808"],"host_organization_lineage_names":["IEEE Communications Society","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 Communications","raw_type":"journal-article"},{"id":"pmh:oai:arXiv.org:1507.08150","is_oa":true,"landing_page_url":"http://arxiv.org/abs/1507.08150","pdf_url":"https://arxiv.org/pdf/1507.08150","source":{"id":"https://openalex.org/S4306400194","display_name":"arXiv (Cornell University)","issn_l":null,"issn":null,"is_oa":true,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I205783295","host_organization_name":"Cornell University","host_organization_lineage":["https://openalex.org/I205783295"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"text"},{"id":"mag:2207172903","is_oa":true,"landing_page_url":"https://arxiv.org/pdf/1507.08150.pdf","pdf_url":null,"source":{"id":"https://openalex.org/S4306400194","display_name":"arXiv (Cornell University)","issn_l":null,"issn":null,"is_oa":true,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I205783295","host_organization_name":"Cornell University","host_organization_lineage":["https://openalex.org/I205783295"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"arXiv (Cornell University)","raw_type":null},{"id":"pmh:oai:repository.kaust.edu.sa:10754/622535","is_oa":false,"landing_page_url":"http://hdl.handle.net/10754/622535","pdf_url":null,"source":{"id":"https://openalex.org/S4306401596","display_name":"King Abdullah University of Science and Technology Repository (King Abdullah University of Science and Technology)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I71920554","host_organization_name":"King Abdullah University of Science and Technology","host_organization_lineage":["https://openalex.org/I71920554"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":"Article"},{"id":"doi:10.48550/arxiv.1507.08150","is_oa":true,"landing_page_url":"https://doi.org/10.48550/arxiv.1507.08150","pdf_url":null,"source":{"id":"https://openalex.org/S4306400194","display_name":"arXiv (Cornell University)","issn_l":null,"issn":null,"is_oa":true,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I205783295","host_organization_name":"Cornell University","host_organization_lineage":["https://openalex.org/I205783295"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":null,"is_accepted":false,"is_published":null,"raw_source_name":null,"raw_type":"Preprint"}],"best_oa_location":{"id":"pmh:oai:arXiv.org:1507.08150","is_oa":true,"landing_page_url":"http://arxiv.org/abs/1507.08150","pdf_url":"https://arxiv.org/pdf/1507.08150","source":{"id":"https://openalex.org/S4306400194","display_name":"arXiv (Cornell University)","issn_l":null,"issn":null,"is_oa":true,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I205783295","host_organization_name":"Cornell University","host_organization_lineage":["https://openalex.org/I205783295"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"text"},"sustainable_development_goals":[{"score":0.9100000262260437,"display_name":"Affordable and clean energy","id":"https://metadata.un.org/sdg/7"}],"awards":[{"id":"https://openalex.org/G4791586547","display_name":null,"funder_award_id":"OSR-2016-KKI-2899","funder_id":"https://openalex.org/F4320322320","funder_display_name":"King Abdullah University of Science and Technology"}],"funders":[{"id":"https://openalex.org/F4320306164","display_name":"Simons Foundation","ror":"https://ror.org/01cmst727"},{"id":"https://openalex.org/F4320322320","display_name":"King Abdullah University of Science and Technology","ror":"https://ror.org/01q3tbs38"}],"has_content":{"pdf":true,"grobid_xml":true},"content_urls":{"pdf":"https://content.openalex.org/works/W2207172903.pdf","grobid_xml":"https://content.openalex.org/works/W2207172903.grobid-xml"},"referenced_works_count":43,"referenced_works":["https://openalex.org/W1527075076","https://openalex.org/W1547069917","https://openalex.org/W1595042559","https://openalex.org/W1968707549","https://openalex.org/W1970113402","https://openalex.org/W1985290376","https://openalex.org/W2039632403","https://openalex.org/W2039688938","https://openalex.org/W2053785134","https://openalex.org/W2061134945","https://openalex.org/W2069844710","https://openalex.org/W2084304524","https://openalex.org/W2092734317","https://openalex.org/W2103699908","https://openalex.org/W2103972037","https://openalex.org/W2111286984","https://openalex.org/W2113157322","https://openalex.org/W2118166339","https://openalex.org/W2119434824","https://openalex.org/W2120686080","https://openalex.org/W2121315337","https://openalex.org/W2127906434","https://openalex.org/W2128513990","https://openalex.org/W2132228186","https://openalex.org/W2135248699","https://openalex.org/W2139212485","https://openalex.org/W2140481303","https://openalex.org/W2140577326","https://openalex.org/W2141682101","https://openalex.org/W2145013959","https://openalex.org/W2147601077","https://openalex.org/W2151144578","https://openalex.org/W2152999056","https://openalex.org/W2157195543","https://openalex.org/W2171387626","https://openalex.org/W2203659613","https://openalex.org/W3101888099","https://openalex.org/W4205987271","https://openalex.org/W4214620153","https://openalex.org/W6636382992","https://openalex.org/W6639900308","https://openalex.org/W6692349173","https://openalex.org/W7008424798"],"related_works":["https://openalex.org/W2898869819","https://openalex.org/W1592686203","https://openalex.org/W2800497398","https://openalex.org/W2595558302","https://openalex.org/W2209649868","https://openalex.org/W2808608757","https://openalex.org/W2734509423","https://openalex.org/W2942547138","https://openalex.org/W2024088286","https://openalex.org/W3012530031","https://openalex.org/W2115413291","https://openalex.org/W1565305170","https://openalex.org/W3192578430","https://openalex.org/W3011480931","https://openalex.org/W22236059","https://openalex.org/W1747072732","https://openalex.org/W2782260920","https://openalex.org/W3123671917","https://openalex.org/W2599465835","https://openalex.org/W2228482378"],"abstract_inverted_index":{"By":[0],"virtue":[1],"of":[2,89,107,123,148,165],"large":[3],"antenna":[4,68,83],"arrays,":[5],"massive":[6,33],"MIMO":[7,24],"systems":[8,35],"have":[9],"a":[10,76,86,113,121],"potential":[11],"to":[12,133,144],"yield":[13],"higher":[14],"spectral":[15],"and":[16,138,160],"energy":[17],"efficiency":[18],"in":[19,32,139],"comparison":[20],"with":[21,36],"the":[22,63,100,105,135,146,166],"conventional":[23],"systems.":[25],"This":[26],"paper":[27],"addresses":[28],"uplink":[29],"channel":[30,56,101,152],"estimation":[31,115,168],"MIMO-OFDM":[34],"frequency":[37],"selective":[38],"channels.":[39],"We":[40],"propose":[41,112],"an":[42],"efficient":[43],"distributed":[44],"minimum":[45],"mean":[46],"square":[47],"error":[48],"(MMSE)":[49],"algorithm":[50],"that":[51,117],"can":[52],"achieve":[53],"near":[54,162],"optimal":[55,163],"estimates":[57,102],"at":[58,81],"low":[59],"complexity":[60],"by":[61,85],"exploiting":[62],"strong":[64],"spatial":[65],"correlation":[66],"among":[67,93],"array":[69,95],"elements.":[70,96],"The":[71,154],"proposed":[72,167],"method":[73],"involves":[74],"solving":[75],"reduced":[77],"dimensional":[78],"MMSE":[79],"problem":[80],"each":[82],"followed":[84],"repetitive":[87],"sharing":[88],"information":[90,143],"through":[91],"collaboration":[92],"neighboring":[94],"To":[97],"further":[98],"enhance":[99],"and/or":[103],"reduce":[104],"number":[106],"reserved":[108],"pilot":[109,136,149],"tones,":[110],"we":[111,129],"data-aided":[114],"technique":[116],"relies":[118],"on":[119,151],"finding":[120],"set":[122],"most":[124],"reliable":[125],"data":[126],"carriers.":[127],"Furthermore,":[128],"use":[130,141],"stochastic":[131],"geometry":[132],"quantify":[134],"contamination,":[137],"turn":[140],"this":[142],"analyze":[145],"effect":[147],"contamination":[150],"MSE.":[153],"simulation":[155],"results":[156],"validate":[157],"our":[158],"analysis":[159],"show":[161],"performance":[164],"algorithms.":[169]},"counts_by_year":[{"year":2020,"cited_by_count":1},{"year":2019,"cited_by_count":1},{"year":2017,"cited_by_count":2},{"year":2015,"cited_by_count":1}],"updated_date":"2026-07-15T18:14:33.161393","created_date":"2025-10-10T00:00:00"}
