{"id":"https://openalex.org/W4210680740","doi":"https://doi.org/10.1109/tgcn.2022.3146188","title":"Sparse Channel Estimation for Intelligent Reflecting Surface Assisted Massive MIMO Systems","display_name":"Sparse Channel Estimation for Intelligent Reflecting Surface Assisted Massive MIMO Systems","publication_year":2022,"publication_date":"2022-01-25","ids":{"openalex":"https://openalex.org/W4210680740","doi":"https://doi.org/10.1109/tgcn.2022.3146188"},"language":"en","primary_location":{"is_oa":false,"landing_page_url":"https://doi.org/10.1109/tgcn.2022.3146188","pdf_url":null,"source":{"id":"https://openalex.org/S4210192662","display_name":"IEEE Transactions on Green Communications and Networking","issn_l":"2473-2400","issn":["2473-2400"],"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":null,"is_accepted":false,"is_published":false},"type":"article","type_crossref":"journal-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/A5044896631","display_name":"Lei Zhou","orcid":"https://orcid.org/0000-0002-8499-5521"},"institutions":[{"id":"https://openalex.org/I115592961","display_name":"Jiangsu University","ror":"https://ror.org/03jc41j30","country_code":"CN","type":"education","lineage":["https://openalex.org/I115592961"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Lei Zhou","raw_affiliation_strings":["Department of Electronic Engineering, Jiangsu University, Zhenjiang, China"],"affiliations":[{"raw_affiliation_string":"Department of Electronic Engineering, Jiangsu University, Zhenjiang, China","institution_ids":["https://openalex.org/I115592961"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5032700528","display_name":"Jisheng Dai","orcid":"https://orcid.org/0000-0002-0462-4414"},"institutions":[{"id":"https://openalex.org/I115592961","display_name":"Jiangsu University","ror":"https://ror.org/03jc41j30","country_code":"CN","type":"education","lineage":["https://openalex.org/I115592961"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Jisheng Dai","raw_affiliation_strings":["Department of Electronic Engineering, Jiangsu University, Zhenjiang, China"],"affiliations":[{"raw_affiliation_string":"Department of Electronic Engineering, Jiangsu University, Zhenjiang, China","institution_ids":["https://openalex.org/I115592961"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5061152961","display_name":"Weichao Xu","orcid":"https://orcid.org/0000-0001-6516-0927"},"institutions":[{"id":"https://openalex.org/I139024713","display_name":"Guangdong University of Technology","ror":"https://ror.org/04azbjn80","country_code":"CN","type":"education","lineage":["https://openalex.org/I139024713"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Weichao Xu","raw_affiliation_strings":["Department of Automatic Control, Guangdong University of Technology, Guangzhou, China"],"affiliations":[{"raw_affiliation_string":"Department of Automatic Control, Guangdong University of Technology, Guangzhou, China","institution_ids":["https://openalex.org/I139024713"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5011796695","display_name":"Chunqi Chang","orcid":"https://orcid.org/0000-0003-1172-6491"},"institutions":[{"id":"https://openalex.org/I180726961","display_name":"Shenzhen University","ror":"https://ror.org/01vy4gh70","country_code":"CN","type":"education","lineage":["https://openalex.org/I180726961"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Chunqi Chang","raw_affiliation_strings":["School of Biomedical Engineering, Shenzhen University, Shenzhen, China"],"affiliations":[{"raw_affiliation_string":"School of Biomedical Engineering, Shenzhen University, Shenzhen, China","institution_ids":["https://openalex.org/I180726961"]}]}],"institution_assertions":[],"countries_distinct_count":1,"institutions_distinct_count":3,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":2.421,"has_fulltext":false,"cited_by_count":19,"citation_normalized_percentile":{"value":0.999983,"is_in_top_1_percent":true,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":96,"max":97},"biblio":{"volume":"6","issue":"1","first_page":"208","last_page":"220"},"is_retracted":false,"is_paratext":false,"primary_topic":{"id":"https://openalex.org/T11458","display_name":"Intelligent Reflecting Surfaces in Wireless Communications","score":0.9999,"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/T11458","display_name":"Intelligent Reflecting Surfaces in Wireless Communications","score":0.9999,"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/T10326","display_name":"Wireless Indoor Localization Techniques and Systems","score":0.9837,"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/T10069","display_name":"Antenna Design and Applications","score":0.9736,"subfield":{"id":"https://openalex.org/subfields/2202","display_name":"Aerospace 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/channel-estimation","display_name":"Channel Estimation","score":0.58077},{"id":"https://openalex.org/keywords/intelligent-reflecting-surfaces","display_name":"Intelligent Reflecting Surfaces","score":0.570109},{"id":"https://openalex.org/keywords/reconfigurable-intelligent-surfaces","display_name":"Reconfigurable Intelligent Surfaces","score":0.528606},{"id":"https://openalex.org/keywords/smart-radio-environments","display_name":"Smart Radio Environments","score":0.523296},{"id":"https://openalex.org/keywords/channel-state-information","display_name":"Channel state information","score":0.5040075}],"concepts":[{"id":"https://openalex.org/C854659","wikidata":"https://www.wikidata.org/wiki/Q1859284","display_name":"Message passing","level":2,"score":0.7317364},{"id":"https://openalex.org/C138660444","wikidata":"https://www.wikidata.org/wiki/Q5607897","display_name":"Telecommunications link","level":2,"score":0.7240422},{"id":"https://openalex.org/C207987634","wikidata":"https://www.wikidata.org/wiki/Q176862","display_name":"MIMO","level":3,"score":0.7236757},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.72133124},{"id":"https://openalex.org/C2779960059","wikidata":"https://www.wikidata.org/wiki/Q7113681","display_name":"Overhead (engineering)","level":2,"score":0.6575856},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.6021267},{"id":"https://openalex.org/C54197355","wikidata":"https://www.wikidata.org/wiki/Q5782992","display_name":"Beamforming","level":2,"score":0.5902532},{"id":"https://openalex.org/C68649174","wikidata":"https://www.wikidata.org/wiki/Q1379116","display_name":"Base station","level":2,"score":0.58661836},{"id":"https://openalex.org/C555944384","wikidata":"https://www.wikidata.org/wiki/Q249","display_name":"Wireless","level":2,"score":0.5092541},{"id":"https://openalex.org/C148063708","wikidata":"https://www.wikidata.org/wiki/Q5072511","display_name":"Channel state information","level":3,"score":0.5040075},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.4772125},{"id":"https://openalex.org/C124066611","wikidata":"https://www.wikidata.org/wiki/Q28684319","display_name":"Sparse approximation","level":2,"score":0.47081217},{"id":"https://openalex.org/C113775141","wikidata":"https://www.wikidata.org/wiki/Q428691","display_name":"Computer engineering","level":1,"score":0.45147365},{"id":"https://openalex.org/C120314980","wikidata":"https://www.wikidata.org/wiki/Q180634","display_name":"Distributed computing","level":1,"score":0.21539345},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.19897339},{"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":[{"is_oa":false,"landing_page_url":"https://doi.org/10.1109/tgcn.2022.3146188","pdf_url":null,"source":{"id":"https://openalex.org/S4210192662","display_name":"IEEE Transactions on Green Communications and Networking","issn_l":"2473-2400","issn":["2473-2400"],"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":null,"is_accepted":false,"is_published":false}],"best_oa_location":null,"sustainable_development_goals":[{"score":0.91,"display_name":"Affordable and clean energy","id":"https://metadata.un.org/sdg/7"}],"grants":[{"funder":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China","award_id":"61971289"},{"funder":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China","award_id":"62171141"}],"datasets":[],"versions":[],"referenced_works_count":50,"referenced_works":["https://openalex.org/W1510028821","https://openalex.org/W1527520754","https://openalex.org/W2028823365","https://openalex.org/W2120549790","https://openalex.org/W2146000945","https://openalex.org/W2768388424","https://openalex.org/W2937693915","https://openalex.org/W2945463326","https://openalex.org/W2971912794","https://openalex.org/W2981576251","https://openalex.org/W2981792785","https://openalex.org/W2990747873","https://openalex.org/W3011747750","https://openalex.org/W3013719647","https://openalex.org/W3016215183","https://openalex.org/W3023940643","https://openalex.org/W3025201079","https://openalex.org/W3032095193","https://openalex.org/W3048745140","https://openalex.org/W3049287381","https://openalex.org/W3080804940","https://openalex.org/W3095341834","https://openalex.org/W3096723356","https://openalex.org/W3103026331","https://openalex.org/W3103991536","https://openalex.org/W3104071687","https://openalex.org/W3106291328","https://openalex.org/W3118629792","https://openalex.org/W3124508960","https://openalex.org/W3132804089","https://openalex.org/W3133443365","https://openalex.org/W3133878048","https://openalex.org/W3134059753","https://openalex.org/W3144244478","https://openalex.org/W3151541370","https://openalex.org/W3152632745","https://openalex.org/W3155222786","https://openalex.org/W3176457495","https://openalex.org/W3180206688","https://openalex.org/W3180290512","https://openalex.org/W3188769437","https://openalex.org/W3194017445","https://openalex.org/W3194646605","https://openalex.org/W3198389221","https://openalex.org/W3201397934","https://openalex.org/W3206703067","https://openalex.org/W4248709896","https://openalex.org/W4288335807","https://openalex.org/W4296310844","https://openalex.org/W4298089643"],"related_works":["https://openalex.org/W4291722335","https://openalex.org/W4287642618","https://openalex.org/W4285192270","https://openalex.org/W3203573643","https://openalex.org/W3190774574","https://openalex.org/W3092731089","https://openalex.org/W3080525847","https://openalex.org/W2950726470","https://openalex.org/W2042521024","https://openalex.org/W1491101245"],"abstract_inverted_index":{"Intelligent":[0],"reflecting":[1],"surface":[2],"(IRS)":[3],"has":[4],"emerged":[5],"as":[6,161],"a":[7,87,136,144,180,196,204,221],"promising":[8],"technology":[9],"for":[10,36,79,93,187,227],"improving":[11],"the":[12,28,38,52,55,61,67,74,94,101,108,115,129,152,156,162,165,176,188,235,238],"spectrum":[13],"and":[14,113,123,203,218],"energy":[15],"efficiency":[16],"of":[17,27,42,54,63,103,195,198,206,237],"next-generation":[18],"wireless":[19,30,57],"communications.":[20],"Accurately":[21],"acquiring":[22],"channel":[23,76,97,191],"state":[24],"information":[25],"(CSI)":[26],"IRS-assisted":[29,56,80],"system":[31,58],"is":[32,46,140,148],"an":[33],"essential":[34],"task":[35],"reaping":[37],"passive":[39],"beamforming":[40],"gain":[41],"IRS.":[43,68],"However,":[44],"it":[45],"quite":[47],"difficult":[48],"to":[49,60,118,150],"directly":[50],"obtain":[51],"CSI":[53],"due":[59],"inability":[62],"signal":[64,132],"processing":[65],"at":[66,107],"In":[69,126],"this":[70,127],"paper,":[71],"we":[72,178],"investigate":[73],"downlink":[75,96,190],"estimation":[77],"problem":[78,91,134],"massive":[81,104],"MIMO":[82,105],"systems.":[83],"We":[84,213],"first":[85],"present":[86],"new":[88],"sparse":[89,131,158],"recovery":[90,133],"formulation":[92],"cascaded":[95,189],"estimation,":[98,192],"which":[99,193],"exploits":[100],"sparsity":[102],"channels":[106],"base":[109],"station":[110],"(BS)":[111],"side":[112],"adopts":[114],"sub-surface":[116],"idea":[117],"significantly":[119],"reduce":[120],"computational":[121],"complexity":[122],"training":[124],"overhead.":[125],"case,":[128],"corresponding":[130],"exhibits":[135],"row-sparse":[137,153,166],"feature":[138],"but":[139],"additionally":[141],"affected":[142],"by":[143],"coupling":[145],"matrix.":[146],"It":[147],"challenging":[149],"recover":[151],"matrix":[154,167],"with":[155,171],"traditional":[157],"representation":[159],"methods,":[160],"elements":[163],"in":[164],"are":[168],"highly":[169],"coupled":[170],"each":[172],"other.":[173],"To":[174],"meet":[175],"challenge,":[177],"employ":[179],"hybrid":[181,222],"approximate":[182,209],"message":[183,210],"passing":[184,211],"(AMP)":[185],"framework":[186,223],"consists":[194],"part":[197,205],"expectation":[199],"propagation":[200],"approximation":[201],"(EPA)":[202],"two-level":[207],"generalized":[208],"(GAMP).":[212],"illustrate":[214],"that":[215],"combining":[216],"EPA":[217],"GAMP":[219],"into":[220],"can":[224],"make":[225],"up":[226],"their":[228],"respective":[229],"shortcomings.":[230],"Numerical":[231],"simulation":[232],"results":[233],"verify":[234],"superiority":[236],"proposed":[239],"method.":[240]},"cited_by_api_url":"https://api.openalex.org/works?filter=cites:W4210680740","counts_by_year":[{"year":2024,"cited_by_count":5},{"year":2023,"cited_by_count":11},{"year":2022,"cited_by_count":3}],"updated_date":"2024-09-30T13:34:57.509186","created_date":"2022-02-08"}