{"id":"https://openalex.org/W2792983470","doi":"https://doi.org/10.1109/access.2018.2816560","title":"Multiuser Massive MIMO AF Relaying: Spectral Efficiency and Power Allocation","display_name":"Multiuser Massive MIMO AF Relaying: Spectral Efficiency and Power Allocation","publication_year":2018,"publication_date":"2018-01-01","ids":{"openalex":"https://openalex.org/W2792983470","doi":"https://doi.org/10.1109/access.2018.2816560","mag":"2792983470"},"language":"en","primary_location":{"id":"doi:10.1109/access.2018.2816560","is_oa":true,"landing_page_url":"https://doi.org/10.1109/access.2018.2816560","pdf_url":null,"source":{"id":"https://openalex.org/S2485537415","display_name":"IEEE Access","issn_l":"2169-3536","issn":["2169-3536"],"is_oa":true,"is_in_doaj":true,"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 Access","raw_type":"journal-article"},"type":"article","indexed_in":["crossref","doaj"],"open_access":{"is_oa":true,"oa_status":"gold","oa_url":"https://doi.org/10.1109/access.2018.2816560","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5100355603","display_name":"Xi Yang","orcid":"https://orcid.org/0000-0003-1445-1745"},"institutions":[{"id":"https://openalex.org/I76569877","display_name":"Southeast University","ror":"https://ror.org/04ct4d772","country_code":"CN","type":"education","lineage":["https://openalex.org/I76569877"]}],"countries":["CN"],"is_corresponding":true,"raw_author_name":"Xi Yang","raw_affiliation_strings":["National Communications Research Laboratory, Southeast University, Nanjing, China"],"affiliations":[{"raw_affiliation_string":"National Communications Research Laboratory, Southeast University, Nanjing, China","institution_ids":["https://openalex.org/I76569877"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5084367642","display_name":"Xuesong Liang","orcid":"https://orcid.org/0000-0003-3082-2454"},"institutions":[{"id":"https://openalex.org/I41198531","display_name":"Nanjing University of Posts and Telecommunications","ror":"https://ror.org/043bpky34","country_code":"CN","type":"education","lineage":["https://openalex.org/I41198531"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Xuesong Liang","raw_affiliation_strings":["School of Telecommunication and Information Engineering, Nanjing University of Posts and Telecommunications, Nanjing, China"],"affiliations":[{"raw_affiliation_string":"School of Telecommunication and Information Engineering, Nanjing University of Posts and Telecommunications, Nanjing, China","institution_ids":["https://openalex.org/I41198531"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5022040924","display_name":"Tiecheng Song","orcid":"https://orcid.org/0000-0002-9505-0179"},"institutions":[{"id":"https://openalex.org/I76569877","display_name":"Southeast University","ror":"https://ror.org/04ct4d772","country_code":"CN","type":"education","lineage":["https://openalex.org/I76569877"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Tiecheng Song","raw_affiliation_strings":["National Communications Research Laboratory, Southeast University, Nanjing, China"],"affiliations":[{"raw_affiliation_string":"National Communications Research Laboratory, Southeast University, Nanjing, China","institution_ids":["https://openalex.org/I76569877"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5013867024","display_name":"Wei Xu","orcid":"https://orcid.org/0000-0001-9341-8382"},"institutions":[{"id":"https://openalex.org/I76569877","display_name":"Southeast University","ror":"https://ror.org/04ct4d772","country_code":"CN","type":"education","lineage":["https://openalex.org/I76569877"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Wei Xu","raw_affiliation_strings":["National Communications Research Laboratory, Southeast University, Nanjing, China"],"affiliations":[{"raw_affiliation_string":"National Communications Research Laboratory, Southeast University, Nanjing, China","institution_ids":["https://openalex.org/I76569877"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5013079905","display_name":"Shi Jin","orcid":"https://orcid.org/0000-0003-0271-6021"},"institutions":[{"id":"https://openalex.org/I76569877","display_name":"Southeast University","ror":"https://ror.org/04ct4d772","country_code":"CN","type":"education","lineage":["https://openalex.org/I76569877"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Shi Jin","raw_affiliation_strings":["National Communications Research Laboratory, Southeast University, Nanjing, China"],"affiliations":[{"raw_affiliation_string":"National Communications Research Laboratory, Southeast University, Nanjing, China","institution_ids":["https://openalex.org/I76569877"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":5,"corresponding_author_ids":["https://openalex.org/A5100355603"],"corresponding_institution_ids":["https://openalex.org/I76569877"],"apc_list":{"value":1850,"currency":"USD","value_usd":1850},"apc_paid":{"value":1850,"currency":"USD","value_usd":1850},"fwci":0.9771,"has_fulltext":false,"cited_by_count":7,"citation_normalized_percentile":{"value":0.78207461,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":90,"max":97},"biblio":{"volume":"6","issue":null,"first_page":"18894","last_page":"18906"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10796","display_name":"Cooperative Communication and Network Coding","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"}},"topics":[{"id":"https://openalex.org/T10796","display_name":"Cooperative Communication and Network Coding","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":0.9997000098228455,"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":0.9994999766349792,"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/telecommunications-link","display_name":"Telecommunications link","score":0.9121243953704834},{"id":"https://openalex.org/keywords/precoding","display_name":"Precoding","score":0.7558072209358215},{"id":"https://openalex.org/keywords/base-station","display_name":"Base station","score":0.6724451780319214},{"id":"https://openalex.org/keywords/spectral-efficiency","display_name":"Spectral efficiency","score":0.6695720553398132},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.6477161645889282},{"id":"https://openalex.org/keywords/mimo","display_name":"MIMO","score":0.5704315900802612},{"id":"https://openalex.org/keywords/transmission","display_name":"Transmission (telecommunications)","score":0.5660761594772339},{"id":"https://openalex.org/keywords/relay","display_name":"Relay","score":0.5659013986587524},{"id":"https://openalex.org/keywords/transmitter-power-output","display_name":"Transmitter power output","score":0.5409759879112244},{"id":"https://openalex.org/keywords/maximization","display_name":"Maximization","score":0.4574642777442932},{"id":"https://openalex.org/keywords/electronic-engineering","display_name":"Electronic engineering","score":0.39041000604629517},{"id":"https://openalex.org/keywords/power","display_name":"Power (physics)","score":0.35794222354888916},{"id":"https://openalex.org/keywords/computer-network","display_name":"Computer network","score":0.3561900854110718},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.29983383417129517},{"id":"https://openalex.org/keywords/beamforming","display_name":"Beamforming","score":0.24236619472503662},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.20941975712776184},{"id":"https://openalex.org/keywords/mathematical-optimization","display_name":"Mathematical optimization","score":0.18081852793693542},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.13761010766029358},{"id":"https://openalex.org/keywords/transmitter","display_name":"Transmitter","score":0.11107280850410461},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.0856277346611023}],"concepts":[{"id":"https://openalex.org/C138660444","wikidata":"https://www.wikidata.org/wiki/Q5607897","display_name":"Telecommunications link","level":2,"score":0.9121243953704834},{"id":"https://openalex.org/C160562895","wikidata":"https://www.wikidata.org/wiki/Q7239557","display_name":"Precoding","level":4,"score":0.7558072209358215},{"id":"https://openalex.org/C68649174","wikidata":"https://www.wikidata.org/wiki/Q1379116","display_name":"Base station","level":2,"score":0.6724451780319214},{"id":"https://openalex.org/C137246740","wikidata":"https://www.wikidata.org/wiki/Q583970","display_name":"Spectral efficiency","level":3,"score":0.6695720553398132},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6477161645889282},{"id":"https://openalex.org/C207987634","wikidata":"https://www.wikidata.org/wiki/Q176862","display_name":"MIMO","level":3,"score":0.5704315900802612},{"id":"https://openalex.org/C761482","wikidata":"https://www.wikidata.org/wiki/Q118093","display_name":"Transmission (telecommunications)","level":2,"score":0.5660761594772339},{"id":"https://openalex.org/C2778156585","wikidata":"https://www.wikidata.org/wiki/Q174053","display_name":"Relay","level":3,"score":0.5659013986587524},{"id":"https://openalex.org/C65422117","wikidata":"https://www.wikidata.org/wiki/Q358527","display_name":"Transmitter power output","level":4,"score":0.5409759879112244},{"id":"https://openalex.org/C2776330181","wikidata":"https://www.wikidata.org/wiki/Q18358244","display_name":"Maximization","level":2,"score":0.4574642777442932},{"id":"https://openalex.org/C24326235","wikidata":"https://www.wikidata.org/wiki/Q126095","display_name":"Electronic engineering","level":1,"score":0.39041000604629517},{"id":"https://openalex.org/C163258240","wikidata":"https://www.wikidata.org/wiki/Q25342","display_name":"Power (physics)","level":2,"score":0.35794222354888916},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.3561900854110718},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.29983383417129517},{"id":"https://openalex.org/C54197355","wikidata":"https://www.wikidata.org/wiki/Q5782992","display_name":"Beamforming","level":2,"score":0.24236619472503662},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.20941975712776184},{"id":"https://openalex.org/C126255220","wikidata":"https://www.wikidata.org/wiki/Q141495","display_name":"Mathematical optimization","level":1,"score":0.18081852793693542},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.13761010766029358},{"id":"https://openalex.org/C47798520","wikidata":"https://www.wikidata.org/wiki/Q190157","display_name":"Transmitter","level":3,"score":0.11107280850410461},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.0856277346611023},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.0},{"id":"https://openalex.org/C62520636","wikidata":"https://www.wikidata.org/wiki/Q944","display_name":"Quantum mechanics","level":1,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1109/access.2018.2816560","is_oa":true,"landing_page_url":"https://doi.org/10.1109/access.2018.2816560","pdf_url":null,"source":{"id":"https://openalex.org/S2485537415","display_name":"IEEE Access","issn_l":"2169-3536","issn":["2169-3536"],"is_oa":true,"is_in_doaj":true,"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 Access","raw_type":"journal-article"},{"id":"pmh:oai:doaj.org/article:2d5ae0a3e5c84f1ea78fa36ee598a7d0","is_oa":true,"landing_page_url":"https://doaj.org/article/2d5ae0a3e5c84f1ea78fa36ee598a7d0","pdf_url":null,"source":{"id":"https://openalex.org/S112646816","display_name":"SHILAP Revista de lepidopterolog\u00eda","issn_l":"0300-5267","issn":["0300-5267","2340-4078"],"is_oa":true,"is_in_doaj":true,"is_core":false,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"journal"},"license":"cc-by-sa","license_id":"https://openalex.org/licenses/cc-by-sa","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"IEEE Access, Vol 6, Pp 18894-18906 (2018)","raw_type":"article"}],"best_oa_location":{"id":"doi:10.1109/access.2018.2816560","is_oa":true,"landing_page_url":"https://doi.org/10.1109/access.2018.2816560","pdf_url":null,"source":{"id":"https://openalex.org/S2485537415","display_name":"IEEE Access","issn_l":"2169-3536","issn":["2169-3536"],"is_oa":true,"is_in_doaj":true,"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 Access","raw_type":"journal-article"},"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/7","display_name":"Affordable and clean energy","score":0.7400000095367432}],"awards":[{"id":"https://openalex.org/G1148494144","display_name":null,"funder_award_id":"61471114","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G6555637624","display_name":null,"funder_award_id":"61625106","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G8616498718","display_name":null,"funder_award_id":"61531011","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"}],"funders":[{"id":"https://openalex.org/F4320321001","display_name":"National Natural Science Foundation of China","ror":"https://ror.org/01h0zpd94"}],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":37,"referenced_works":["https://openalex.org/W1971443733","https://openalex.org/W1977207404","https://openalex.org/W1989151864","https://openalex.org/W1999833500","https://openalex.org/W2015301486","https://openalex.org/W2034756192","https://openalex.org/W2059245681","https://openalex.org/W2076457767","https://openalex.org/W2083836808","https://openalex.org/W2092640771","https://openalex.org/W2099721949","https://openalex.org/W2107022748","https://openalex.org/W2127980469","https://openalex.org/W2128513990","https://openalex.org/W2130347036","https://openalex.org/W2134503975","https://openalex.org/W2136877591","https://openalex.org/W2141682101","https://openalex.org/W2142383973","https://openalex.org/W2145013959","https://openalex.org/W2145060291","https://openalex.org/W2147601077","https://openalex.org/W2148963518","https://openalex.org/W2150079203","https://openalex.org/W2151544711","https://openalex.org/W2152121970","https://openalex.org/W2154422674","https://openalex.org/W2156811678","https://openalex.org/W2171342189","https://openalex.org/W2171387626","https://openalex.org/W2547140262","https://openalex.org/W2651491514","https://openalex.org/W2794172237","https://openalex.org/W2962741042","https://openalex.org/W2964229571","https://openalex.org/W3104532765","https://openalex.org/W3106282754"],"related_works":["https://openalex.org/W3141240674","https://openalex.org/W2601693592","https://openalex.org/W4214571564","https://openalex.org/W2169192185","https://openalex.org/W2103590590","https://openalex.org/W2515629000","https://openalex.org/W2013230419","https://openalex.org/W2274777105","https://openalex.org/W4372349176","https://openalex.org/W2395708164"],"abstract_inverted_index":{"In":[0,20,65,110],"this":[1],"paper,":[2],"we":[3,112,128,159],"investigate":[4],"the":[5,21,23,28,47,51,57,62,66,68,71,81,85,89,92,96,101,107,114,130,137,150,161,172,177],"uplink":[6,124],"and":[7,44,87,103,125,134,170],"downlink":[8],"transmission":[9,76],"of":[10,140,149,152],"a":[11,147],"relay-aided":[12],"multiuser":[13],"massive":[14],"multiple-input":[15],"multiple-output":[16],"amplify-and-forward":[17],"relaying":[18],"system.":[19],"uplink,":[22],"relay":[24],"station":[25,53],"(RS)":[26],"processes":[27,70,91],"received":[29,93],"signal":[30,49,72,83],"from":[31],"K":[32,108],"single-antenna":[33],"mobile":[34],"users,":[35],"using":[36,73,95],"maximum":[37,74],"ratio":[38,75],"combining":[39],"or":[40,77],"zero":[41],"forcing":[42],"(ZF),":[43],"then":[45,88,104],"forwards":[46,80,105],"post-processed":[48,82],"to":[50,60,84,106],"base":[52],"(BS)":[54],"which":[55],"employs":[56],"same":[58,97],"processing":[59,98,179],"recover":[61],"user":[63],"signals.":[64],"downlink,":[67],"BS":[69,102],"ZF":[78],"precoding,":[79],"RS,":[86],"RS":[90],"signals":[94],"used":[99],"at":[100],"users.":[109],"particular,":[111],"derive":[113],"ergodic":[115],"spectral":[116,167],"efficiency":[117,168],"lower":[118],"bound":[119],"in":[120],"closed-form":[121],"for":[122,165,176],"both":[123],"downlink.":[126],"Furthermore,":[127],"examine":[129],"power":[131,139,162,173],"scaling":[132],"laws":[133],"find":[135],"that":[136],"transmit":[138],"nodes":[141],"can":[142],"be":[143],"cut":[144],"down":[145],"by":[146],"factor":[148],"number":[151],"antennas":[153],"without":[154],"any":[155],"performance":[156],"loss.":[157],"Finally,":[158],"solve":[160],"allocation":[163,174],"problem":[164],"sum":[166],"maximization":[169],"presented":[171],"strategy":[175],"considered":[178],"schemes.":[180]},"counts_by_year":[{"year":2023,"cited_by_count":1},{"year":2022,"cited_by_count":1},{"year":2021,"cited_by_count":2},{"year":2019,"cited_by_count":3}],"updated_date":"2026-04-09T08:11:56.329763","created_date":"2025-10-10T00:00:00"}