{"id":"https://openalex.org/W2885224202","doi":"https://doi.org/10.1109/icc.2018.8422121","title":"Downlink Channel Estimation with Limited Feedback for FDD Multi-User Massive MIMO with Spatial Channel Correlation","display_name":"Downlink Channel Estimation with Limited Feedback for FDD Multi-User Massive MIMO with Spatial Channel Correlation","publication_year":2018,"publication_date":"2018-05-01","ids":{"openalex":"https://openalex.org/W2885224202","doi":"https://doi.org/10.1109/icc.2018.8422121","mag":"2885224202"},"language":"en","primary_location":{"id":"doi:10.1109/icc.2018.8422121","is_oa":false,"landing_page_url":"https://doi.org/10.1109/icc.2018.8422121","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2018 IEEE International Conference on Communications (ICC)","raw_type":"proceedings-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/A5081422580","display_name":"Hayder Almosa","orcid":"https://orcid.org/0000-0002-5107-0530"},"institutions":[{"id":"https://openalex.org/I146416000","display_name":"University of Kansas","ror":"https://ror.org/001tmjg57","country_code":"US","type":"education","lineage":["https://openalex.org/I146416000"]}],"countries":["US"],"is_corresponding":true,"raw_author_name":"Hayder Almosa","raw_affiliation_strings":["Electrical Engineering and Computer Science Department, University of Kansas, Lawrence, KS, USA"],"affiliations":[{"raw_affiliation_string":"Electrical Engineering and Computer Science Department, University of Kansas, Lawrence, KS, USA","institution_ids":["https://openalex.org/I146416000"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5078588560","display_name":"Susanna Mosleh","orcid":"https://orcid.org/0000-0003-3813-4971"},"institutions":[{"id":"https://openalex.org/I146416000","display_name":"University of Kansas","ror":"https://ror.org/001tmjg57","country_code":"US","type":"education","lineage":["https://openalex.org/I146416000"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Susanna Mosleh","raw_affiliation_strings":["Electrical Engineering and Computer Science Department, University of Kansas, Lawrence, KS, USA"],"affiliations":[{"raw_affiliation_string":"Electrical Engineering and Computer Science Department, University of Kansas, Lawrence, KS, USA","institution_ids":["https://openalex.org/I146416000"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5037007988","display_name":"Erik Perrins","orcid":"https://orcid.org/0000-0003-3596-4523"},"institutions":[{"id":"https://openalex.org/I146416000","display_name":"University of Kansas","ror":"https://ror.org/001tmjg57","country_code":"US","type":"education","lineage":["https://openalex.org/I146416000"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Erik Perrins","raw_affiliation_strings":["Electrical Engineering and Computer Science Department, University of Kansas, Lawrence, KS, USA"],"affiliations":[{"raw_affiliation_string":"Electrical Engineering and Computer Science Department, University of Kansas, Lawrence, KS, USA","institution_ids":["https://openalex.org/I146416000"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5027237940","display_name":"Lingjia Liu","orcid":"https://orcid.org/0000-0003-1915-1784"},"institutions":[{"id":"https://openalex.org/I859038795","display_name":"Virginia Tech","ror":"https://ror.org/02smfhw86","country_code":"US","type":"education","lineage":["https://openalex.org/I859038795"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Lingjia Liu","raw_affiliation_strings":["Electrical and Computer Engineering Department, Virginia Tech, Blacksburg, VA, USA"],"affiliations":[{"raw_affiliation_string":"Electrical and Computer Engineering Department, Virginia Tech, Blacksburg, VA, USA","institution_ids":["https://openalex.org/I859038795"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":4,"corresponding_author_ids":["https://openalex.org/A5081422580"],"corresponding_institution_ids":["https://openalex.org/I146416000"],"apc_list":null,"apc_paid":null,"fwci":0.6438,"has_fulltext":false,"cited_by_count":7,"citation_normalized_percentile":{"value":0.70863029,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":96},"biblio":{"volume":null,"issue":null,"first_page":"1","last_page":"6"},"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/T12791","display_name":"Full-Duplex Wireless Communications","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"}},{"id":"https://openalex.org/T10796","display_name":"Cooperative Communication and Network Coding","score":0.9976000189781189,"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/telecommunications-link","display_name":"Telecommunications link","score":0.8519071936607361},{"id":"https://openalex.org/keywords/mimo","display_name":"MIMO","score":0.8011407852172852},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.6983579397201538},{"id":"https://openalex.org/keywords/channel-state-information","display_name":"Channel state information","score":0.6428122520446777},{"id":"https://openalex.org/keywords/spatial-correlation","display_name":"Spatial correlation","score":0.6087408065795898},{"id":"https://openalex.org/keywords/channel","display_name":"Channel (broadcasting)","score":0.5919471383094788},{"id":"https://openalex.org/keywords/overhead","display_name":"Overhead (engineering)","score":0.5728812217712402},{"id":"https://openalex.org/keywords/multi-user-mimo","display_name":"Multi-user MIMO","score":0.5259989500045776},{"id":"https://openalex.org/keywords/precoding","display_name":"Precoding","score":0.5243294835090637},{"id":"https://openalex.org/keywords/mimo-ofdm","display_name":"MIMO-OFDM","score":0.4691535234451294},{"id":"https://openalex.org/keywords/estimator","display_name":"Estimator","score":0.41486459970474243},{"id":"https://openalex.org/keywords/electronic-engineering","display_name":"Electronic engineering","score":0.40335774421691895},{"id":"https://openalex.org/keywords/wireless","display_name":"Wireless","score":0.34737256169319153},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.3384750485420227},{"id":"https://openalex.org/keywords/computer-network","display_name":"Computer network","score":0.3001036047935486},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.20264822244644165},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.18049976229667664},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.10081848502159119},{"id":"https://openalex.org/keywords/statistics","display_name":"Statistics","score":0.07528313994407654}],"concepts":[{"id":"https://openalex.org/C138660444","wikidata":"https://www.wikidata.org/wiki/Q5607897","display_name":"Telecommunications link","level":2,"score":0.8519071936607361},{"id":"https://openalex.org/C207987634","wikidata":"https://www.wikidata.org/wiki/Q176862","display_name":"MIMO","level":3,"score":0.8011407852172852},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6983579397201538},{"id":"https://openalex.org/C148063708","wikidata":"https://www.wikidata.org/wiki/Q5072511","display_name":"Channel state information","level":3,"score":0.6428122520446777},{"id":"https://openalex.org/C150060386","wikidata":"https://www.wikidata.org/wiki/Q7574054","display_name":"Spatial correlation","level":2,"score":0.6087408065795898},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.5919471383094788},{"id":"https://openalex.org/C2779960059","wikidata":"https://www.wikidata.org/wiki/Q7113681","display_name":"Overhead (engineering)","level":2,"score":0.5728812217712402},{"id":"https://openalex.org/C91330434","wikidata":"https://www.wikidata.org/wiki/Q738298","display_name":"Multi-user MIMO","level":4,"score":0.5259989500045776},{"id":"https://openalex.org/C160562895","wikidata":"https://www.wikidata.org/wiki/Q7239557","display_name":"Precoding","level":4,"score":0.5243294835090637},{"id":"https://openalex.org/C130946814","wikidata":"https://www.wikidata.org/wiki/Q5988271","display_name":"MIMO-OFDM","level":4,"score":0.4691535234451294},{"id":"https://openalex.org/C185429906","wikidata":"https://www.wikidata.org/wiki/Q1130160","display_name":"Estimator","level":2,"score":0.41486459970474243},{"id":"https://openalex.org/C24326235","wikidata":"https://www.wikidata.org/wiki/Q126095","display_name":"Electronic engineering","level":1,"score":0.40335774421691895},{"id":"https://openalex.org/C555944384","wikidata":"https://www.wikidata.org/wiki/Q249","display_name":"Wireless","level":2,"score":0.34737256169319153},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.3384750485420227},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.3001036047935486},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.20264822244644165},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.18049976229667664},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.10081848502159119},{"id":"https://openalex.org/C105795698","wikidata":"https://www.wikidata.org/wiki/Q12483","display_name":"Statistics","level":1,"score":0.07528313994407654},{"id":"https://openalex.org/C111919701","wikidata":"https://www.wikidata.org/wiki/Q9135","display_name":"Operating system","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/icc.2018.8422121","is_oa":false,"landing_page_url":"https://doi.org/10.1109/icc.2018.8422121","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2018 IEEE International Conference on Communications (ICC)","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[{"score":0.9100000262260437,"display_name":"Affordable and clean energy","id":"https://metadata.un.org/sdg/7"}],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":20,"referenced_works":["https://openalex.org/W1938636034","https://openalex.org/W1997834106","https://openalex.org/W2015301486","https://openalex.org/W2036030019","https://openalex.org/W2096127572","https://openalex.org/W2106929598","https://openalex.org/W2113157322","https://openalex.org/W2120549790","https://openalex.org/W2121641100","https://openalex.org/W2130134073","https://openalex.org/W2168689454","https://openalex.org/W2170738062","https://openalex.org/W2293184686","https://openalex.org/W2297832764","https://openalex.org/W2326913951","https://openalex.org/W2518967821","https://openalex.org/W2521562709","https://openalex.org/W2614913386","https://openalex.org/W2621216226","https://openalex.org/W4300263211"],"related_works":["https://openalex.org/W2167568384","https://openalex.org/W2116541631","https://openalex.org/W2514205366","https://openalex.org/W3173074004","https://openalex.org/W1976511355","https://openalex.org/W2055298134","https://openalex.org/W2544668827","https://openalex.org/W2082469387","https://openalex.org/W1985632843","https://openalex.org/W2216248654"],"abstract_inverted_index":{"Massive":[0],"multiple":[1,3],"input":[2],"output":[4],"(MIMO)":[5],"systems":[6,61,79,103],"are":[7],"a":[8],"promising":[9],"technology":[10],"for":[11,54,76],"next":[12],"generation":[13],"wireless":[14],"communications":[15],"due":[16],"to":[17,20,51,136],"their":[18],"ability":[19],"increase":[21],"capacity":[22],"and":[23,27,65,108,189],"enhance":[24],"both":[25],"spectrum":[26],"energy":[28],"efficiency.":[29],"To":[30],"utilize":[31],"the":[32,44,82,86,94,117,121,129,133,144,150,157,180,186,195],"benefit":[33],"of":[34,81,85,120,159,170],"massive":[35,59,77,101],"MIMO":[36,60,78,102],"systems,":[37],"accurate":[38],"downlink":[39,63,122,145],"channel":[40,87,95,112,123,153,162,197],"state":[41],"information":[42],"at":[43],"transmitter":[45],"(CSIT)":[46],"is":[47],"essential.":[48],"Conventional":[49],"approaches":[50],"obtain":[52,137],"CSIT":[53],"frequency-division":[55],"duplex":[56],"(FDD)":[57],"multi-user":[58,100],"require":[62],"training":[64,71,146],"uplink":[66],"CSI":[67,139],"feedback.":[68],"However,":[69],"such":[70],"results":[72,177],"in":[73,98,168],"large":[74,83],"overhead":[75,147,188],"because":[80],"dimensionality":[84],"matrix.":[88,124],"In":[89],"this":[90],"paper,":[91],"we":[92],"investigate":[93],"estimation":[96,113,163,198],"problem":[97],"FDD":[99],"with":[104,149,165,194],"spatially":[105],"correlated":[106],"channels":[107],"develop":[109],"an":[110],"efficient":[111,138],"algorithm":[114,127,182],"that":[115,141,179],"exploits":[116],"sparsity":[118],"structure":[119],"The":[125],"proposed":[126,161,181],"selects":[128],"best":[130],"features":[131],"from":[132],"measurement":[134],"matrix":[135],"acquisition":[140],"can":[142,183],"reduce":[143,185],"compared":[148,193],"conventional":[151],"LS/MMSE":[152],"estimators.":[154],"We":[155],"compare":[156],"performance":[158,192],"our":[160],"method":[164],"traditional":[166,196],"ones":[167],"terms":[169],"normalized":[171],"mean":[172],"square":[173],"error":[174],"(MSE).":[175],"Simulation":[176],"verify":[178],"significantly":[184],"pilot":[187],"has":[190],"better":[191],"methods.":[199]},"counts_by_year":[{"year":2023,"cited_by_count":1},{"year":2022,"cited_by_count":1},{"year":2021,"cited_by_count":2},{"year":2020,"cited_by_count":2},{"year":2019,"cited_by_count":1}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}