{"id":"https://openalex.org/W3166046608","doi":"https://doi.org/10.1109/tbc.2021.3081869","title":"Joint Spatial Division and Coaxial Multiplexing for Downlink Multi-User OAM Wireless Backhaul","display_name":"Joint Spatial Division and Coaxial Multiplexing for Downlink Multi-User OAM Wireless Backhaul","publication_year":2021,"publication_date":"2021-05-27","ids":{"openalex":"https://openalex.org/W3166046608","doi":"https://doi.org/10.1109/tbc.2021.3081869","mag":"3166046608"},"language":"en","primary_location":{"id":"doi:10.1109/tbc.2021.3081869","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tbc.2021.3081869","pdf_url":null,"source":{"id":"https://openalex.org/S100142436","display_name":"IEEE Transactions on Broadcasting","issn_l":"0018-9316","issn":["0018-9316","1557-9611"],"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 Broadcasting","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/A5046974161","display_name":"Wen-Xuan Long","orcid":"https://orcid.org/0000-0002-6931-5807"},"institutions":[{"id":"https://openalex.org/I108290504","display_name":"University of Pisa","ror":"https://ror.org/03ad39j10","country_code":"IT","type":"education","lineage":["https://openalex.org/I108290504"]},{"id":"https://openalex.org/I149594827","display_name":"Xidian University","ror":"https://ror.org/05s92vm98","country_code":"CN","type":"education","lineage":["https://openalex.org/I149594827"]}],"countries":["CN","IT"],"is_corresponding":true,"raw_author_name":"Wen-Xuan Long","raw_affiliation_strings":["Dipartimento di Ingegneria dell\u2019Informazione, University of Pisa, Pisa, Italy","State Key Laboratory of ISN, Xidian University, Xi\u2019an, China","Dipartimento di Ingegneria dell'Informazione, University of Pisa, Pisa, Italy","State Key Laboratory of ISN, Xidian University, Xi'an, China"],"raw_orcid":"https://orcid.org/0000-0002-6931-5807","affiliations":[{"raw_affiliation_string":"Dipartimento di Ingegneria dell\u2019Informazione, University of Pisa, Pisa, Italy","institution_ids":["https://openalex.org/I108290504"]},{"raw_affiliation_string":"State Key Laboratory of ISN, Xidian University, Xi\u2019an, China","institution_ids":["https://openalex.org/I149594827"]},{"raw_affiliation_string":"Dipartimento di Ingegneria dell'Informazione, University of Pisa, Pisa, Italy","institution_ids":["https://openalex.org/I108290504"]},{"raw_affiliation_string":"State Key Laboratory of ISN, Xidian University, Xi'an, China","institution_ids":["https://openalex.org/I149594827"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100403637","display_name":"Rui Chen","orcid":"https://orcid.org/0000-0002-2628-5847"},"institutions":[{"id":"https://openalex.org/I149594827","display_name":"Xidian University","ror":"https://ror.org/05s92vm98","country_code":"CN","type":"education","lineage":["https://openalex.org/I149594827"]},{"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":"Rui Chen","raw_affiliation_strings":["National Mobile Communications Research Laboratory, Southeast University, Nanjing, China","State Key Laboratory of ISN, Xidian University, Xi\u2019an, China","State Key Laboratory of ISN, Xidian University, Xi'an, China"],"raw_orcid":"https://orcid.org/0000-0002-3690-7902","affiliations":[{"raw_affiliation_string":"National Mobile Communications Research Laboratory, Southeast University, Nanjing, China","institution_ids":["https://openalex.org/I76569877"]},{"raw_affiliation_string":"State Key Laboratory of ISN, Xidian University, Xi\u2019an, China","institution_ids":["https://openalex.org/I149594827"]},{"raw_affiliation_string":"State Key Laboratory of ISN, Xidian University, Xi'an, China","institution_ids":["https://openalex.org/I149594827"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5029932152","display_name":"Marco Moretti","orcid":"https://orcid.org/0000-0002-3822-0995"},"institutions":[{"id":"https://openalex.org/I108290504","display_name":"University of Pisa","ror":"https://ror.org/03ad39j10","country_code":"IT","type":"education","lineage":["https://openalex.org/I108290504"]}],"countries":["IT"],"is_corresponding":false,"raw_author_name":"Marco Moretti","raw_affiliation_strings":["Dipartimento di Ingegneria dell\u2019Informazione, University of Pisa, Pisa, Italy","Dipartimento di Ingegneria dell'Informazione, University of Pisa, Pisa, Italy"],"raw_orcid":"https://orcid.org/0000-0002-3822-0995","affiliations":[{"raw_affiliation_string":"Dipartimento di Ingegneria dell\u2019Informazione, University of Pisa, Pisa, Italy","institution_ids":["https://openalex.org/I108290504"]},{"raw_affiliation_string":"Dipartimento di Ingegneria dell'Informazione, University of Pisa, Pisa, Italy","institution_ids":["https://openalex.org/I108290504"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5101487138","display_name":"Jian Xiong","orcid":"https://orcid.org/0000-0003-0869-680X"},"institutions":[{"id":"https://openalex.org/I183067930","display_name":"Shanghai Jiao Tong University","ror":"https://ror.org/0220qvk04","country_code":"CN","type":"education","lineage":["https://openalex.org/I183067930"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Jian Xiong","raw_affiliation_strings":["Department of Electronic Engineering, Shanghai Jiao Tong University, Shanghai, China"],"raw_orcid":"https://orcid.org/0000-0003-0869-680X","affiliations":[{"raw_affiliation_string":"Department of Electronic Engineering, Shanghai Jiao Tong University, Shanghai, China","institution_ids":["https://openalex.org/I183067930"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5004181029","display_name":"Jiandong Li","orcid":"https://orcid.org/0000-0002-8851-836X"},"institutions":[{"id":"https://openalex.org/I149594827","display_name":"Xidian University","ror":"https://ror.org/05s92vm98","country_code":"CN","type":"education","lineage":["https://openalex.org/I149594827"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Jiandong Li","raw_affiliation_strings":["State Key Laboratory of ISN, Xidian University, Xi\u2019an, China","State Key Laboratory of ISN, Xidian University, Xi'an, China"],"raw_orcid":"https://orcid.org/0000-0002-8851-836X","affiliations":[{"raw_affiliation_string":"State Key Laboratory of ISN, Xidian University, Xi\u2019an, China","institution_ids":["https://openalex.org/I149594827"]},{"raw_affiliation_string":"State Key Laboratory of ISN, Xidian University, Xi'an, China","institution_ids":["https://openalex.org/I149594827"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":5,"corresponding_author_ids":["https://openalex.org/A5046974161"],"corresponding_institution_ids":["https://openalex.org/I108290504","https://openalex.org/I149594827"],"apc_list":null,"apc_paid":null,"fwci":4.6377,"has_fulltext":false,"cited_by_count":35,"citation_normalized_percentile":{"value":0.95499391,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":96,"max":99},"biblio":{"volume":"67","issue":"4","first_page":"879","last_page":"893"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10490","display_name":"Orbital Angular Momentum in Optics","score":0.9995999932289124,"subfield":{"id":"https://openalex.org/subfields/3107","display_name":"Atomic and Molecular Physics, and Optics"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T10490","display_name":"Orbital Angular Momentum in Optics","score":0.9995999932289124,"subfield":{"id":"https://openalex.org/subfields/3107","display_name":"Atomic and Molecular Physics, and Optics"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10851","display_name":"Optical Wireless Communication Technologies","score":0.9944000244140625,"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":0.9944000244140625,"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/backhaul","display_name":"Backhaul (telecommunications)","score":0.7906758785247803},{"id":"https://openalex.org/keywords/mimo","display_name":"MIMO","score":0.7269651889801025},{"id":"https://openalex.org/keywords/telecommunications-link","display_name":"Telecommunications link","score":0.7077162861824036},{"id":"https://openalex.org/keywords/spatial-multiplexing","display_name":"Spatial multiplexing","score":0.5957351326942444},{"id":"https://openalex.org/keywords/multiplexing","display_name":"Multiplexing","score":0.5791212320327759},{"id":"https://openalex.org/keywords/wireless","display_name":"Wireless","score":0.5280336141586304},{"id":"https://openalex.org/keywords/multi-user-mimo","display_name":"Multi-user MIMO","score":0.4974396526813507},{"id":"https://openalex.org/keywords/electronic-engineering","display_name":"Electronic engineering","score":0.48426979780197144},{"id":"https://openalex.org/keywords/spectral-efficiency","display_name":"Spectral efficiency","score":0.45858168601989746},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.4511689841747284},{"id":"https://openalex.org/keywords/computer-network","display_name":"Computer network","score":0.37711450457572937},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.3646469712257385},{"id":"https://openalex.org/keywords/channel","display_name":"Channel (broadcasting)","score":0.3283056616783142},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.24577325582504272}],"concepts":[{"id":"https://openalex.org/C103760667","wikidata":"https://www.wikidata.org/wiki/Q798444","display_name":"Backhaul (telecommunications)","level":3,"score":0.7906758785247803},{"id":"https://openalex.org/C207987634","wikidata":"https://www.wikidata.org/wiki/Q176862","display_name":"MIMO","level":3,"score":0.7269651889801025},{"id":"https://openalex.org/C138660444","wikidata":"https://www.wikidata.org/wiki/Q5607897","display_name":"Telecommunications link","level":2,"score":0.7077162861824036},{"id":"https://openalex.org/C85884896","wikidata":"https://www.wikidata.org/wiki/Q7574075","display_name":"Spatial multiplexing","level":4,"score":0.5957351326942444},{"id":"https://openalex.org/C19275194","wikidata":"https://www.wikidata.org/wiki/Q222903","display_name":"Multiplexing","level":2,"score":0.5791212320327759},{"id":"https://openalex.org/C555944384","wikidata":"https://www.wikidata.org/wiki/Q249","display_name":"Wireless","level":2,"score":0.5280336141586304},{"id":"https://openalex.org/C91330434","wikidata":"https://www.wikidata.org/wiki/Q738298","display_name":"Multi-user MIMO","level":4,"score":0.4974396526813507},{"id":"https://openalex.org/C24326235","wikidata":"https://www.wikidata.org/wiki/Q126095","display_name":"Electronic engineering","level":1,"score":0.48426979780197144},{"id":"https://openalex.org/C137246740","wikidata":"https://www.wikidata.org/wiki/Q583970","display_name":"Spectral efficiency","level":3,"score":0.45858168601989746},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.4511689841747284},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.37711450457572937},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.3646469712257385},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.3283056616783142},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.24577325582504272}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1109/tbc.2021.3081869","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tbc.2021.3081869","pdf_url":null,"source":{"id":"https://openalex.org/S100142436","display_name":"IEEE Transactions on Broadcasting","issn_l":"0018-9316","issn":["0018-9316","1557-9611"],"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 Broadcasting","raw_type":"journal-article"},{"id":"pmh:oai:arpi.unipi.it:11568/1120312","is_oa":false,"landing_page_url":"http://hdl.handle.net/11568/1120312","pdf_url":null,"source":{"id":"https://openalex.org/S4377196265","display_name":"CINECA IRIS Institutial research information system (University of Pisa)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I108290504","host_organization_name":"University of Pisa","host_organization_lineage":["https://openalex.org/I108290504"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":"info:eu-repo/semantics/article"}],"best_oa_location":null,"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/7","score":0.8999999761581421,"display_name":"Affordable and clean energy"}],"awards":[{"id":"https://openalex.org/G2792351966","display_name":null,"funder_award_id":"2021A1515010812","funder_id":"https://openalex.org/F4320321921","funder_display_name":"Natural Science Foundation of Guangdong Province"},{"id":"https://openalex.org/G2914971085","display_name":null,"funder_award_id":"2021D04","funder_id":"https://openalex.org/F4320324856","funder_display_name":"Southeast University"},{"id":"https://openalex.org/G600506122","display_name":null,"funder_award_id":"2021JZ-18","funder_id":"https://openalex.org/F4320336567","funder_display_name":"Natural Science Basic Research Program of Shaanxi Province"}],"funders":[{"id":"https://openalex.org/F4320321921","display_name":"Natural Science Foundation of Guangdong Province","ror":null},{"id":"https://openalex.org/F4320324856","display_name":"Southeast University","ror":"https://ror.org/04ct4d772"},{"id":"https://openalex.org/F4320336567","display_name":"Natural Science Basic Research Program of Shaanxi Province","ror":null}],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":34,"referenced_works":["https://openalex.org/W1922992366","https://openalex.org/W1951602908","https://openalex.org/W2000177503","https://openalex.org/W2038854086","https://openalex.org/W2071053013","https://openalex.org/W2094055587","https://openalex.org/W2118527690","https://openalex.org/W2124252998","https://openalex.org/W2128628369","https://openalex.org/W2130091446","https://openalex.org/W2169481269","https://openalex.org/W2195833401","https://openalex.org/W2296131367","https://openalex.org/W2321959027","https://openalex.org/W2328234777","https://openalex.org/W2482070576","https://openalex.org/W2562453545","https://openalex.org/W2567079252","https://openalex.org/W2595646485","https://openalex.org/W2781400225","https://openalex.org/W2786317177","https://openalex.org/W2790653727","https://openalex.org/W2913320283","https://openalex.org/W2922482845","https://openalex.org/W2960979840","https://openalex.org/W2964005248","https://openalex.org/W2971927039","https://openalex.org/W3010407341","https://openalex.org/W3033563497","https://openalex.org/W3042274457","https://openalex.org/W3088122795","https://openalex.org/W3104603384","https://openalex.org/W3139458362","https://openalex.org/W3149471105"],"related_works":["https://openalex.org/W2601693592","https://openalex.org/W1500439066","https://openalex.org/W4380147564","https://openalex.org/W2060469467","https://openalex.org/W2023320695","https://openalex.org/W2021129045","https://openalex.org/W2188204209","https://openalex.org/W2761879201","https://openalex.org/W1905709045","https://openalex.org/W2048096091"],"abstract_inverted_index":{"Orbital":[0],"angular":[1],"momentum":[2],"(OAM)":[3],"at":[4],"radio":[5],"frequency":[6,22],"(RF)":[7],"provides":[8],"a":[9,14,165,177],"novel":[10],"approach":[11],"of":[12,16,57,88,107,114,117,148,161,168,250,260],"multiplexing":[13,83],"set":[15],"orthogonal":[17],"modes":[18],"on":[19,34,41,66],"the":[20,31,45,58,77,89,98,105,115,129,159,172,185,191,197,203,242,251,258,261],"same":[21],"channel":[23,99,125,255],"to":[24,156,183,202],"achieve":[25,76],"high":[26],"spectral":[27,220],"efficiencies":[28],"(SEs).":[29],"However,":[30],"existing":[32],"research":[33],"OAM":[35,61],"wireless":[36,63,93,136,206],"communications":[37],"is":[38,96,154,181],"mainly":[39],"focused":[40],"point-to-point":[42],"transmission":[43],"in":[44,190],"line-of-sight":[46],"(LoS)":[47],"scenario.":[48],"In":[49],"this":[50],"paper,":[51],"we":[52,140],"propose":[53,141],"an":[54,142],"overall":[55],"scheme":[56,180,244],"downlink":[59,91,131,192,204,253],"multi-user":[60,132,144],"(MU-OAM)":[62],"backhaul":[64,94,137,207],"based":[65],"uniform":[67,211],"circular":[68,213],"arrays":[69,214],"(UCAs)":[70],"for":[71,216],"broadcasting":[72],"networks,":[73],"which":[74,121,153,217],"can":[75,231,245],"joint":[78],"spatial":[79],"division":[80],"and":[81,119,146,175,187,223,237,256],"coaxial":[82],"(JSDCM).":[84],"A":[85],"salient":[86],"feature":[87],"proposed":[90,198,243],"MU-OAM":[92,178,193,254,263],"systems":[95,230],"that":[97,241],"matrices":[100,126],"are":[101,200],"completely":[102],"characterized":[103],"by":[104,128],"position":[106],"each":[108],"small":[109],"base":[110],"station":[111],"(SBS),":[112],"independent":[113],"numbers":[116],"subcarriers":[118],"antennas,":[120],"avoids":[122],"estimating":[123],"large":[124],"required":[127],"traditional":[130,228],"multiple-input":[133],"multiple-output":[134],"(MU-MIMO)":[135],"systems.":[138],"Thereafter,":[139],"OAM-based":[143],"distance":[145],"angle":[147],"arrival":[149],"(AoA)":[150],"estimation":[151],"method,":[152],"able":[155],"simultaneously":[157],"estimate":[158],"positions":[160],"multiple":[162],"SBSs":[163],"with":[164,210],"flexible":[166],"number":[167],"training":[169],"symbols.":[170],"With":[171],"estimated":[173],"distances":[174],"AoAs,":[176],"preprocessing":[179],"applied":[182],"eliminate":[184,247],"co-mode":[186],"inter-mode":[188],"interferences":[189,249],"channel.":[194,264],"At":[195],"last,":[196],"methods":[199],"extended":[201],"MU-OAM-MIMO":[205],"system":[208],"equipped":[209],"concentric":[212],"(UCCAs),":[215],"much":[218],"higher":[219],"efficiency":[221,225],"(SE)":[222],"energy":[224],"(EE)":[226],"than":[227],"MU-MIMO":[229],"be":[232],"achieved.":[233],"Both":[234],"mathematical":[235],"analysis":[236],"simulation":[238],"results":[239],"validate":[240],"effectively":[246],"both":[248],"practical":[252],"approaches":[257],"performance":[259],"ideal":[262]},"counts_by_year":[{"year":2026,"cited_by_count":1},{"year":2025,"cited_by_count":3},{"year":2024,"cited_by_count":8},{"year":2023,"cited_by_count":12},{"year":2022,"cited_by_count":11}],"updated_date":"2026-03-27T05:58:40.876381","created_date":"2021-06-22T00:00:00"}