{"id":"https://openalex.org/W4294310670","doi":"https://doi.org/10.1109/tvt.2022.3203796","title":"Impact of Channel Aging on Reconfigurable Intelligent Surface Aided Massive MIMO Systems With Statistical CSI","display_name":"Impact of Channel Aging on Reconfigurable Intelligent Surface Aided Massive MIMO Systems With Statistical CSI","publication_year":2022,"publication_date":"2022-09-02","ids":{"openalex":"https://openalex.org/W4294310670","doi":"https://doi.org/10.1109/tvt.2022.3203796"},"language":"en","primary_location":{"id":"doi:10.1109/tvt.2022.3203796","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tvt.2022.3203796","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/A5055961126","display_name":"Anastasios Papazafeiropoulos","orcid":"https://orcid.org/0000-0003-1841-6461"},"institutions":[{"id":"https://openalex.org/I141584323","display_name":"University of Hertfordshire","ror":"https://ror.org/0267vjk41","country_code":"GB","type":"education","lineage":["https://openalex.org/I141584323"]},{"id":"https://openalex.org/I186903577","display_name":"University of Luxembourg","ror":"https://ror.org/036x5ad56","country_code":"LU","type":"education","lineage":["https://openalex.org/I186903577"]}],"countries":["GB","LU"],"is_corresponding":false,"raw_author_name":"Anastasios Papazafeiropoulos","raw_affiliation_strings":["Communications and Intelligent Systems Research Group, University of Hertfordshire, Hatfield, U.K","SnT, University of Luxembourg, Esch-sur-Alzette, Luxembourg"],"raw_orcid":"https://orcid.org/0000-0003-1841-6461","affiliations":[{"raw_affiliation_string":"Communications and Intelligent Systems Research Group, University of Hertfordshire, Hatfield, U.K","institution_ids":["https://openalex.org/I141584323"]},{"raw_affiliation_string":"SnT, University of Luxembourg, Esch-sur-Alzette, Luxembourg","institution_ids":["https://openalex.org/I186903577"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5080502122","display_name":"Ioannis Krikidis","orcid":"https://orcid.org/0000-0003-4036-1364"},"institutions":[{"id":"https://openalex.org/I34771391","display_name":"University of Cyprus","ror":"https://ror.org/02qjrjx09","country_code":"CY","type":"education","lineage":["https://openalex.org/I34771391"]}],"countries":["CY"],"is_corresponding":false,"raw_author_name":"Ioannis Krikidis","raw_affiliation_strings":["IRIDA Research Centre for Communication Technologies, Department of Electrical and Computer Engineering, University of Cyprus, Nicosia, Cyprus"],"raw_orcid":"https://orcid.org/0000-0003-4036-1364","affiliations":[{"raw_affiliation_string":"IRIDA Research Centre for Communication Technologies, Department of Electrical and Computer Engineering, University of Cyprus, Nicosia, Cyprus","institution_ids":["https://openalex.org/I34771391"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5053560016","display_name":"Pandelis Kourtessis","orcid":"https://orcid.org/0000-0003-3392-670X"},"institutions":[{"id":"https://openalex.org/I141584323","display_name":"University of Hertfordshire","ror":"https://ror.org/0267vjk41","country_code":"GB","type":"education","lineage":["https://openalex.org/I141584323"]}],"countries":["GB"],"is_corresponding":false,"raw_author_name":"Pandelis Kourtessis","raw_affiliation_strings":["Communications and Intelligent Systems Research Group, University of Hertfordshire, Hatfield, U.K"],"raw_orcid":"https://orcid.org/0000-0003-3392-670X","affiliations":[{"raw_affiliation_string":"Communications and Intelligent Systems Research Group, University of Hertfordshire, Hatfield, U.K","institution_ids":["https://openalex.org/I141584323"]}]}],"institutions":[],"countries_distinct_count":3,"institutions_distinct_count":3,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":3.0504,"has_fulltext":false,"cited_by_count":44,"citation_normalized_percentile":{"value":0.92483844,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":98,"max":100},"biblio":{"volume":"72","issue":"1","first_page":"689","last_page":"703"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11458","display_name":"Advanced Wireless Communication Technologies","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/T11458","display_name":"Advanced Wireless Communication Technologies","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/T10148","display_name":"Advanced MIMO Systems Optimization","score":0.9968000054359436,"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/T10936","display_name":"Millimeter-Wave Propagation and Modeling","score":0.9919000267982483,"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/precoding","display_name":"Precoding","score":0.7155808210372925},{"id":"https://openalex.org/keywords/telecommunications-link","display_name":"Telecommunications link","score":0.6984019875526428},{"id":"https://openalex.org/keywords/mimo","display_name":"MIMO","score":0.5956512689590454},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.5794157385826111},{"id":"https://openalex.org/keywords/overhead","display_name":"Overhead (engineering)","score":0.5573390126228333},{"id":"https://openalex.org/keywords/channel","display_name":"Channel (broadcasting)","score":0.5517246723175049},{"id":"https://openalex.org/keywords/user-equipment","display_name":"User equipment","score":0.5311901569366455},{"id":"https://openalex.org/keywords/lte-advanced","display_name":"LTE Advanced","score":0.512542724609375},{"id":"https://openalex.org/keywords/channel-state-information","display_name":"Channel state information","score":0.47395989298820496},{"id":"https://openalex.org/keywords/electronic-engineering","display_name":"Electronic engineering","score":0.4465767443180084},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.27976125478744507},{"id":"https://openalex.org/keywords/base-station","display_name":"Base station","score":0.2203834056854248},{"id":"https://openalex.org/keywords/computer-network","display_name":"Computer network","score":0.17963466048240662},{"id":"https://openalex.org/keywords/wireless","display_name":"Wireless","score":0.15873682498931885},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.14837294816970825}],"concepts":[{"id":"https://openalex.org/C160562895","wikidata":"https://www.wikidata.org/wiki/Q7239557","display_name":"Precoding","level":4,"score":0.7155808210372925},{"id":"https://openalex.org/C138660444","wikidata":"https://www.wikidata.org/wiki/Q5607897","display_name":"Telecommunications link","level":2,"score":0.6984019875526428},{"id":"https://openalex.org/C207987634","wikidata":"https://www.wikidata.org/wiki/Q176862","display_name":"MIMO","level":3,"score":0.5956512689590454},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.5794157385826111},{"id":"https://openalex.org/C2779960059","wikidata":"https://www.wikidata.org/wiki/Q7113681","display_name":"Overhead (engineering)","level":2,"score":0.5573390126228333},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.5517246723175049},{"id":"https://openalex.org/C2781327853","wikidata":"https://www.wikidata.org/wiki/Q3552547","display_name":"User equipment","level":3,"score":0.5311901569366455},{"id":"https://openalex.org/C17652562","wikidata":"https://www.wikidata.org/wiki/Q1345402","display_name":"LTE Advanced","level":3,"score":0.512542724609375},{"id":"https://openalex.org/C148063708","wikidata":"https://www.wikidata.org/wiki/Q5072511","display_name":"Channel state information","level":3,"score":0.47395989298820496},{"id":"https://openalex.org/C24326235","wikidata":"https://www.wikidata.org/wiki/Q126095","display_name":"Electronic engineering","level":1,"score":0.4465767443180084},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.27976125478744507},{"id":"https://openalex.org/C68649174","wikidata":"https://www.wikidata.org/wiki/Q1379116","display_name":"Base station","level":2,"score":0.2203834056854248},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.17963466048240662},{"id":"https://openalex.org/C555944384","wikidata":"https://www.wikidata.org/wiki/Q249","display_name":"Wireless","level":2,"score":0.15873682498931885},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.14837294816970825},{"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/tvt.2022.3203796","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tvt.2022.3203796","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":50,"referenced_works":["https://openalex.org/W615589970","https://openalex.org/W1586554030","https://openalex.org/W1640112328","https://openalex.org/W1948968100","https://openalex.org/W1970830346","https://openalex.org/W1974552031","https://openalex.org/W2014447384","https://openalex.org/W2038329885","https://openalex.org/W2084304524","https://openalex.org/W2089121898","https://openalex.org/W2103972037","https://openalex.org/W2106929598","https://openalex.org/W2120686080","https://openalex.org/W2400238828","https://openalex.org/W2612881001","https://openalex.org/W2768578820","https://openalex.org/W2770606349","https://openalex.org/W2937693915","https://openalex.org/W2948573205","https://openalex.org/W2949670636","https://openalex.org/W2968810373","https://openalex.org/W2969424089","https://openalex.org/W2971912794","https://openalex.org/W2981792785","https://openalex.org/W3003686880","https://openalex.org/W3005476696","https://openalex.org/W3013168336","https://openalex.org/W3017311957","https://openalex.org/W3021225717","https://openalex.org/W3021564798","https://openalex.org/W3035049807","https://openalex.org/W3043220753","https://openalex.org/W3084194173","https://openalex.org/W3094327823","https://openalex.org/W3099921307","https://openalex.org/W3105487862","https://openalex.org/W3106510787","https://openalex.org/W3117633996","https://openalex.org/W3120117232","https://openalex.org/W3147070566","https://openalex.org/W3158853690","https://openalex.org/W3159558365","https://openalex.org/W3165711719","https://openalex.org/W3178047772","https://openalex.org/W3192674192","https://openalex.org/W3199166544","https://openalex.org/W4206080021","https://openalex.org/W4225099220","https://openalex.org/W4250589301","https://openalex.org/W6734797129"],"related_works":["https://openalex.org/W3141240674","https://openalex.org/W2167568384","https://openalex.org/W2116541631","https://openalex.org/W2514205366","https://openalex.org/W3173074004","https://openalex.org/W3006920049","https://openalex.org/W1976511355","https://openalex.org/W2544668827","https://openalex.org/W4313028534","https://openalex.org/W2082469387"],"abstract_inverted_index":{"The":[0],"incorporation":[1],"of":[2,16,23,56,59,69,75,163,192,210,244],"reconfigurable":[3],"intelligent":[4],"surface":[5],"(RIS)":[6],"into":[7],"massive":[8],"multiple-input-multiple-output":[9],"(mMIMO)":[10],"systems":[11,78,124],"can":[12,180,230],"unleash":[13],"the":[14,21,54,67,73,114,130,152,160,164,171,175,189,193,199,204,208,225,236,242],"potential":[15],"next-generation":[17],"networks":[18],"by":[19,88,150,233,240],"improving":[20],"performance":[22,74,205,226],"user":[24],"equipments":[25],"(UEs)":[26],"in":[27,62,142],"service":[28],"dead":[29],"zones.":[30],"However,":[31],"their":[32],"requirement":[33],"for":[34,90,214],"accurate":[35],"channel":[36,50,70,91,110,222],"state":[37],"information":[38],"(CSI)":[39],"is":[40],"critical,":[41],"and":[42,83,97,174,202],"especially,":[43],"applications":[44],"with":[45,118,137,168],"UE":[46,115,218],"mobility":[47],"that":[48,179],"induce":[49],"aging":[51,71,92,223],"make":[52],"challenging":[53],"achievement":[55],"adequate":[57],"quality":[58],"service.":[60],"Hence,":[61],"this":[63],"work,":[64],"we":[65,102,128,158],"investigate":[66],"impact":[68,229],"on":[72,147],"RIS-assisted":[76],"mMIMO":[77],"under":[79],"both":[80,94],"spatial":[81],"correlation":[82],"imperfect":[84],"CSI":[85],"conditions.":[86],"Specifically,":[87],"accounting":[89],"during":[93],"uplink":[95],"training":[96],"downlink":[98,131],"data":[99],"transmission":[100],"phases,":[101],"first":[103],"perform":[104],"minimum":[105],"mean":[106],"square":[107],"error":[108],"(MMSE)":[109],"estimation":[111],"to":[112,122,170,188],"obtain":[113],"effective":[116],"channels":[117],"low":[119],"overhead":[120],"similar":[121],"conventional":[123],"without":[125],"RIS.":[126],"Next,":[127],"derive":[129],"achievable":[132,165],"sum":[133,166],"spectral":[134],"efficiency":[135],"(SE)":[136],"regularized":[138],"zero-forcing":[139],"(RZF)":[140],"precoding":[141],"closed-form":[143],"being":[144],"dependent":[145],"only":[146],"large-scale":[148,194],"statistics":[149],"using":[151],"deterministic":[153],"equivalent":[154],"(DE)":[155],"analysis.":[156],"Subsequently,":[157],"present":[159],"attractive":[161],"optimization":[162],"SE":[167],"respect":[169],"phase":[172],"shifts":[173],"total":[176],"transmit":[177],"power":[178],"be":[181,231],"performed":[182],"every":[183],"several":[184],"coherence":[185],"intervals":[186],"due":[187],"slow":[190],"variation":[191],"statistics.":[195],"Numerical":[196],"results":[197],"validate":[198],"analytical":[200],"expressions":[201],"demonstrate":[203],"while":[206],"allowing":[207],"extraction":[209],"insightful":[211],"design":[212],"conclusions":[213],"common":[215],"scenarios":[216],"including":[217],"mobility.":[219],"In":[220],"particular,":[221],"degrades":[224],"but":[227],"its":[228],"controlled":[232],"choosing":[234],"appropriately":[235],"frame":[237],"duration":[238],"or":[239],"increasing":[241],"number":[243],"RIS":[245],"elements.":[246]},"counts_by_year":[{"year":2026,"cited_by_count":3},{"year":2025,"cited_by_count":18},{"year":2024,"cited_by_count":13},{"year":2023,"cited_by_count":10}],"updated_date":"2026-07-15T18:14:33.161393","created_date":"2025-10-10T00:00:00"}