{"id":"https://openalex.org/W2734523996","doi":"https://doi.org/10.1109/jsac.2017.2726019","title":"On Orthogonal and Superimposed Pilot Schemes in Massive MIMO NOMA Systems","display_name":"On Orthogonal and Superimposed Pilot Schemes in Massive MIMO NOMA Systems","publication_year":2017,"publication_date":"2017-07-11","ids":{"openalex":"https://openalex.org/W2734523996","doi":"https://doi.org/10.1109/jsac.2017.2726019","mag":"2734523996"},"language":"en","primary_location":{"id":"doi:10.1109/jsac.2017.2726019","is_oa":false,"landing_page_url":"https://doi.org/10.1109/jsac.2017.2726019","pdf_url":null,"source":{"id":"https://openalex.org/S90422530","display_name":"IEEE Journal on Selected Areas in Communications","issn_l":"0733-8716","issn":["0733-8716","1558-0008"],"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 Journal on Selected Areas in Communications","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/A5100687838","display_name":"Junjie Ma","orcid":"https://orcid.org/0000-0003-1263-5006"},"institutions":[{"id":"https://openalex.org/I168719708","display_name":"City University of Hong Kong","ror":"https://ror.org/03q8dnn23","country_code":"HK","type":"education","lineage":["https://openalex.org/I168719708"]},{"id":"https://openalex.org/I78577930","display_name":"Columbia University","ror":"https://ror.org/00hj8s172","country_code":"US","type":"education","lineage":["https://openalex.org/I78577930"]}],"countries":["HK","US"],"is_corresponding":false,"raw_author_name":"Junjie Ma","raw_affiliation_strings":["Department of Electronic Engineering, City University of Hong Kong, Hong Kong","Department of Statistics, Columbia University, New York City, NY, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Electronic Engineering, City University of Hong Kong, Hong Kong","institution_ids":["https://openalex.org/I168719708"]},{"raw_affiliation_string":"Department of Statistics, Columbia University, New York City, NY, USA","institution_ids":["https://openalex.org/I78577930"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5072583043","display_name":"Chulong Liang","orcid":"https://orcid.org/0000-0003-1503-8063"},"institutions":[{"id":"https://openalex.org/I168719708","display_name":"City University of Hong Kong","ror":"https://ror.org/03q8dnn23","country_code":"HK","type":"education","lineage":["https://openalex.org/I168719708"]}],"countries":["HK"],"is_corresponding":false,"raw_author_name":"Chulong Liang","raw_affiliation_strings":["Department of Electronic Engineering, City University of Hong Kong, Hong Kong"],"raw_orcid":"https://orcid.org/0000-0003-1503-8063","affiliations":[{"raw_affiliation_string":"Department of Electronic Engineering, City University of Hong Kong, Hong Kong","institution_ids":["https://openalex.org/I168719708"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5057657686","display_name":"Chongbin Xu","orcid":"https://orcid.org/0000-0003-0808-8572"},"institutions":[{"id":"https://openalex.org/I24943067","display_name":"Fudan University","ror":"https://ror.org/013q1eq08","country_code":"CN","type":"education","lineage":["https://openalex.org/I24943067"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Chongbin Xu","raw_affiliation_strings":["Key Laboratory for Information Science of Electromagnetic Waves (MoE), Fudan University, Shanghai, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Key Laboratory for Information Science of Electromagnetic Waves (MoE), Fudan University, Shanghai, China","institution_ids":["https://openalex.org/I24943067"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5100741314","display_name":"Li Ping","orcid":"https://orcid.org/0000-0002-4933-5093"},"institutions":[{"id":"https://openalex.org/I168719708","display_name":"City University of Hong Kong","ror":"https://ror.org/03q8dnn23","country_code":"HK","type":"education","lineage":["https://openalex.org/I168719708"]}],"countries":["HK"],"is_corresponding":false,"raw_author_name":"Li Ping","raw_affiliation_strings":["Department of Electronic Engineering, City University of Hong Kong, Hong Kong"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Electronic Engineering, City University of Hong Kong, Hong Kong","institution_ids":["https://openalex.org/I168719708"]}]}],"institutions":[],"countries_distinct_count":3,"institutions_distinct_count":4,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":4.9704,"has_fulltext":false,"cited_by_count":69,"citation_normalized_percentile":{"value":0.95768353,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":95,"max":100},"biblio":{"volume":"35","issue":"12","first_page":"2696","last_page":"2707"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10148","display_name":"Advanced MIMO Systems Optimization","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/T10148","display_name":"Advanced MIMO Systems Optimization","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/T10125","display_name":"Advanced Wireless Communication Techniques","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/T11458","display_name":"Advanced Wireless Communication Technologies","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"}}],"keywords":[{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.8315660953521729},{"id":"https://openalex.org/keywords/noma","display_name":"Noma","score":0.70068359375},{"id":"https://openalex.org/keywords/mimo","display_name":"MIMO","score":0.646971583366394},{"id":"https://openalex.org/keywords/channel","display_name":"Channel (broadcasting)","score":0.5474420785903931},{"id":"https://openalex.org/keywords/code","display_name":"Code (set theory)","score":0.5461519956588745},{"id":"https://openalex.org/keywords/transmission","display_name":"Transmission (telecommunications)","score":0.5353525280952454},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.4953419268131256},{"id":"https://openalex.org/keywords/replica","display_name":"Replica","score":0.4625043570995331},{"id":"https://openalex.org/keywords/gaussian","display_name":"Gaussian","score":0.4595029056072235},{"id":"https://openalex.org/keywords/computer-engineering","display_name":"Computer engineering","score":0.43563514947891235},{"id":"https://openalex.org/keywords/antenna","display_name":"Antenna (radio)","score":0.4333828091621399},{"id":"https://openalex.org/keywords/real-time-computing","display_name":"Real-time computing","score":0.35098057985305786},{"id":"https://openalex.org/keywords/electronic-engineering","display_name":"Electronic engineering","score":0.3277342915534973},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.2943544387817383},{"id":"https://openalex.org/keywords/telecommunications-link","display_name":"Telecommunications link","score":0.10018187761306763}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.8315660953521729},{"id":"https://openalex.org/C2775918612","wikidata":"https://www.wikidata.org/wiki/Q994794","display_name":"Noma","level":3,"score":0.70068359375},{"id":"https://openalex.org/C207987634","wikidata":"https://www.wikidata.org/wiki/Q176862","display_name":"MIMO","level":3,"score":0.646971583366394},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.5474420785903931},{"id":"https://openalex.org/C2776760102","wikidata":"https://www.wikidata.org/wiki/Q5139990","display_name":"Code (set theory)","level":3,"score":0.5461519956588745},{"id":"https://openalex.org/C761482","wikidata":"https://www.wikidata.org/wiki/Q118093","display_name":"Transmission (telecommunications)","level":2,"score":0.5353525280952454},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.4953419268131256},{"id":"https://openalex.org/C2775937380","wikidata":"https://www.wikidata.org/wiki/Q1232589","display_name":"Replica","level":2,"score":0.4625043570995331},{"id":"https://openalex.org/C163716315","wikidata":"https://www.wikidata.org/wiki/Q901177","display_name":"Gaussian","level":2,"score":0.4595029056072235},{"id":"https://openalex.org/C113775141","wikidata":"https://www.wikidata.org/wiki/Q428691","display_name":"Computer engineering","level":1,"score":0.43563514947891235},{"id":"https://openalex.org/C21822782","wikidata":"https://www.wikidata.org/wiki/Q131214","display_name":"Antenna (radio)","level":2,"score":0.4333828091621399},{"id":"https://openalex.org/C79403827","wikidata":"https://www.wikidata.org/wiki/Q3988","display_name":"Real-time computing","level":1,"score":0.35098057985305786},{"id":"https://openalex.org/C24326235","wikidata":"https://www.wikidata.org/wiki/Q126095","display_name":"Electronic engineering","level":1,"score":0.3277342915534973},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.2943544387817383},{"id":"https://openalex.org/C138660444","wikidata":"https://www.wikidata.org/wiki/Q5607897","display_name":"Telecommunications link","level":2,"score":0.10018187761306763},{"id":"https://openalex.org/C177264268","wikidata":"https://www.wikidata.org/wiki/Q1514741","display_name":"Set (abstract data type)","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},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.0},{"id":"https://openalex.org/C153349607","wikidata":"https://www.wikidata.org/wiki/Q36649","display_name":"Visual arts","level":1,"score":0.0},{"id":"https://openalex.org/C199360897","wikidata":"https://www.wikidata.org/wiki/Q9143","display_name":"Programming language","level":1,"score":0.0},{"id":"https://openalex.org/C142362112","wikidata":"https://www.wikidata.org/wiki/Q735","display_name":"Art","level":0,"score":0.0},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/jsac.2017.2726019","is_oa":false,"landing_page_url":"https://doi.org/10.1109/jsac.2017.2726019","pdf_url":null,"source":{"id":"https://openalex.org/S90422530","display_name":"IEEE Journal on Selected Areas in Communications","issn_l":"0733-8716","issn":["0733-8716","1558-0008"],"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 Journal on Selected Areas in Communications","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":52,"referenced_works":["https://openalex.org/W250076511","https://openalex.org/W1493541001","https://openalex.org/W1535655465","https://openalex.org/W1700248997","https://openalex.org/W1901462474","https://openalex.org/W1907710130","https://openalex.org/W1965392255","https://openalex.org/W1969492090","https://openalex.org/W1997834106","https://openalex.org/W2003523039","https://openalex.org/W2022318697","https://openalex.org/W2039962332","https://openalex.org/W2083213425","https://openalex.org/W2087646599","https://openalex.org/W2097979474","https://openalex.org/W2101394529","https://openalex.org/W2102241149","https://openalex.org/W2102251435","https://openalex.org/W2109489513","https://openalex.org/W2111616148","https://openalex.org/W2111898578","https://openalex.org/W2117798913","https://openalex.org/W2117890770","https://openalex.org/W2123958913","https://openalex.org/W2127490352","https://openalex.org/W2138590791","https://openalex.org/W2140443484","https://openalex.org/W2141065397","https://openalex.org/W2143441977","https://openalex.org/W2147601077","https://openalex.org/W2148622067","https://openalex.org/W2154424428","https://openalex.org/W2159027561","https://openalex.org/W2159836080","https://openalex.org/W2160390925","https://openalex.org/W2164366353","https://openalex.org/W2170896409","https://openalex.org/W2264505683","https://openalex.org/W2289097008","https://openalex.org/W2562965985","https://openalex.org/W2566482151","https://openalex.org/W2567891236","https://openalex.org/W2568384394","https://openalex.org/W2593779246","https://openalex.org/W3099378150","https://openalex.org/W3105489096","https://openalex.org/W3124461539","https://openalex.org/W4285719527","https://openalex.org/W6629343882","https://openalex.org/W6683514964","https://openalex.org/W6693259554","https://openalex.org/W6731575968"],"related_works":["https://openalex.org/W3030525848","https://openalex.org/W4385197910","https://openalex.org/W2340639785","https://openalex.org/W3010814398","https://openalex.org/W4385197899","https://openalex.org/W2962936331","https://openalex.org/W2756429284","https://openalex.org/W4224872188","https://openalex.org/W4285223123","https://openalex.org/W4386970495"],"abstract_inverted_index":{"This":[0,96],"paper":[1],"is":[2,98,117,130],"concerned":[3],"with":[4,13,43,71,93,100,138,150],"pilot":[5,20,22,26,86],"transmission":[6],"schemes":[7],"in":[8,38,108,133,145],"a":[9,127,146,151],"large":[10,152],"antenna":[11],"system":[12],"non-orthogonal":[14],"multiple-access":[15],"(NOMA).":[16],"We":[17,45,64,79,135,156],"investigate":[18],"two":[19],"structures-orthogonal":[21],"(OP)":[23],"and":[24,77],"superimposed":[25,42],"(SP).":[27],"In":[28],"OP,":[29],"pilots":[30,40],"occupy":[31],"dedicated":[32],"time":[33],"(or":[34],"frequency)":[35],"slots,":[36],"while":[37],"SP,":[39],"are":[41,58],"data.":[44],"study":[46],"an":[47],"iterative":[48],"data-aided":[49],"channel":[50,62],"estimation":[51],"(IDACE)":[52],"receiver,":[53],"where":[54],"partially":[55],"decoded":[56],"data":[57],"used":[59],"to":[60,89,124,160],"refine":[61],"estimation.":[63],"analyze":[65],"the":[66,82,105],"achievable":[67],"rates":[68],"for":[69,74,91,119],"systems":[70],"IDACE":[72,129],"receivers":[73],"both":[75],"OP":[76,144],"SP.":[78],"show":[80],"that":[81],"optimal":[83],"portion":[84],"of":[85,154],"power":[87],"tends":[88],"zero":[90],"SP":[92,141],"Gaussian":[94],"signaling.":[95],"result":[97],"consistent":[99],"existing":[101],"findings":[102],"obtained":[103],"via":[104],"replica":[106],"method":[107],"statistical":[109],"physics.":[110],"The":[111],"latter":[112],"involves":[113],"multiple":[114],"codes,":[115],"which":[116],"convenient":[118],"theoretical":[120],"analysis":[121],"but":[122],"difficult":[123],"implement.":[125],"As":[126],"comparison,":[128],"potentially":[131],"implementable":[132],"practice.":[134],"demonstrate":[136],"that,":[137],"code":[139],"optimization,":[140],"can":[142],"outperform":[143],"high":[147],"mobility":[148],"environment":[149],"number":[153],"users.":[155],"provide":[157],"numerical":[158],"examples":[159],"verify":[161],"our":[162],"analysis.":[163]},"counts_by_year":[{"year":2026,"cited_by_count":1},{"year":2025,"cited_by_count":4},{"year":2024,"cited_by_count":8},{"year":2023,"cited_by_count":6},{"year":2022,"cited_by_count":6},{"year":2021,"cited_by_count":10},{"year":2020,"cited_by_count":8},{"year":2019,"cited_by_count":17},{"year":2018,"cited_by_count":6},{"year":2017,"cited_by_count":3}],"updated_date":"2026-06-11T09:08:48.828518","created_date":"2025-10-10T00:00:00"}