{"id":"https://openalex.org/W4229058078","doi":"https://doi.org/10.1109/spawc51304.2022.9834001","title":"Sparse Large-Scale Fading Decoding in Cell-Free Massive MIMO Systems","display_name":"Sparse Large-Scale Fading Decoding in Cell-Free Massive MIMO Systems","publication_year":2022,"publication_date":"2022-07-04","ids":{"openalex":"https://openalex.org/W4229058078","doi":"https://doi.org/10.1109/spawc51304.2022.9834001"},"language":"en","primary_location":{"id":"doi:10.1109/spawc51304.2022.9834001","is_oa":false,"landing_page_url":"https://doi.org/10.1109/spawc51304.2022.9834001","pdf_url":null,"source":{"id":"https://openalex.org/S4363607144","display_name":"2022 IEEE 23rd International Workshop on Signal Processing Advances in Wireless Communication (SPAWC)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"conference"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2022 IEEE 23rd International Workshop on Signal Processing Advances in Wireless Communication (SPAWC)","raw_type":"proceedings-article"},"type":"conference-paper","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/A5066741814","display_name":"ShuaiFei Chen","orcid":"https://orcid.org/0000-0002-3920-9982"},"institutions":[{"id":"https://openalex.org/I21193070","display_name":"Beijing Jiaotong University","ror":"https://ror.org/01yj56c84","country_code":"CN","type":"education","lineage":["https://openalex.org/I21193070"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Shuaifei Chen","raw_affiliation_strings":["Beijing Jiaotong University,School of Electronic and Information Engineering,Beijing,China,100044","Frontiers Science Center for Smart High-speed Railway System, Beijing Jiaotong University, Beijing, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Beijing Jiaotong University,School of Electronic and Information Engineering,Beijing,China,100044","institution_ids":["https://openalex.org/I21193070"]},{"raw_affiliation_string":"Frontiers Science Center for Smart High-speed Railway System, Beijing Jiaotong University, Beijing, China","institution_ids":["https://openalex.org/I21193070"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100612301","display_name":"Jiayi Zhang","orcid":"https://orcid.org/0000-0003-2434-4329"},"institutions":[{"id":"https://openalex.org/I21193070","display_name":"Beijing Jiaotong University","ror":"https://ror.org/01yj56c84","country_code":"CN","type":"education","lineage":["https://openalex.org/I21193070"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Jiayi Zhang","raw_affiliation_strings":["Beijing Jiaotong University,School of Electronic and Information Engineering,Beijing,China,100044","Frontiers Science Center for Smart High-speed Railway System, Beijing Jiaotong University, Beijing, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Beijing Jiaotong University,School of Electronic and Information Engineering,Beijing,China,100044","institution_ids":["https://openalex.org/I21193070"]},{"raw_affiliation_string":"Frontiers Science Center for Smart High-speed Railway System, Beijing Jiaotong University, Beijing, China","institution_ids":["https://openalex.org/I21193070"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5062293532","display_name":"Emil Bj\u00f6rnson","orcid":"https://orcid.org/0000-0002-5954-434X"},"institutions":[{"id":"https://openalex.org/I86987016","display_name":"KTH Royal Institute of Technology","ror":"https://ror.org/026vcq606","country_code":"SE","type":"education","lineage":["https://openalex.org/I86987016"]}],"countries":["SE"],"is_corresponding":false,"raw_author_name":"Emil Bjornson","raw_affiliation_strings":["KTH Royal Institute of Technology,Department of Computer Science,Kista,Sweden,SE-16440"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"KTH Royal Institute of Technology,Department of Computer Science,Kista,Sweden,SE-16440","institution_ids":["https://openalex.org/I86987016"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5030697206","display_name":"\u00d6zlem Tu\u011ffe Demir","orcid":"https://orcid.org/0000-0001-9059-2799"},"institutions":[{"id":"https://openalex.org/I86987016","display_name":"KTH Royal Institute of Technology","ror":"https://ror.org/026vcq606","country_code":"SE","type":"education","lineage":["https://openalex.org/I86987016"]}],"countries":["SE"],"is_corresponding":false,"raw_author_name":"Ozlem Tugfe Demir","raw_affiliation_strings":["KTH Royal Institute of Technology,Department of Computer Science,Kista,Sweden,SE-16440"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"KTH Royal Institute of Technology,Department of Computer Science,Kista,Sweden,SE-16440","institution_ids":["https://openalex.org/I86987016"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5100620739","display_name":"Bo Ai","orcid":"https://orcid.org/0000-0001-6850-0595"},"institutions":[{"id":"https://openalex.org/I21193070","display_name":"Beijing Jiaotong University","ror":"https://ror.org/01yj56c84","country_code":"CN","type":"education","lineage":["https://openalex.org/I21193070"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Bo Ai","raw_affiliation_strings":["Beijing Jiaotong University,Frontiers Science Center for Smart High-speed Railway System,Beijing,China,100044","State Key Laboratory of Rail Traffic Control and Safety, Beijing Jiaotong University, Beijing, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Beijing Jiaotong University,Frontiers Science Center for Smart High-speed Railway System,Beijing,China,100044","institution_ids":["https://openalex.org/I21193070"]},{"raw_affiliation_string":"State Key Laboratory of Rail Traffic Control and Safety, Beijing Jiaotong University, Beijing, China","institution_ids":["https://openalex.org/I21193070"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":2,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":null,"has_fulltext":false,"cited_by_count":7,"citation_normalized_percentile":null,"cited_by_percentile_year":null,"biblio":{"volume":null,"issue":null,"first_page":"1","last_page":"5"},"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":0.9998999834060669,"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/T10796","display_name":"Cooperative Communication and Network Coding","score":0.9990000128746033,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/fading","display_name":"Fading","score":0.78609699010849},{"id":"https://openalex.org/keywords/decoding-methods","display_name":"Decoding methods","score":0.7710094451904297},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.7383137941360474},{"id":"https://openalex.org/keywords/coordinate-descent","display_name":"Coordinate descent","score":0.5962892174720764},{"id":"https://openalex.org/keywords/mimo","display_name":"MIMO","score":0.5907533764839172},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.5369455814361572},{"id":"https://openalex.org/keywords/block","display_name":"Block (permutation group theory)","score":0.5300678610801697},{"id":"https://openalex.org/keywords/scale","display_name":"Scale (ratio)","score":0.4220528304576874},{"id":"https://openalex.org/keywords/spectral-efficiency","display_name":"Spectral efficiency","score":0.41817474365234375},{"id":"https://openalex.org/keywords/computer-engineering","display_name":"Computer engineering","score":0.34426581859588623},{"id":"https://openalex.org/keywords/theoretical-computer-science","display_name":"Theoretical computer science","score":0.3224680721759796},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.15852868556976318},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.1264374554157257},{"id":"https://openalex.org/keywords/channel","display_name":"Channel (broadcasting)","score":0.07077041268348694}],"concepts":[{"id":"https://openalex.org/C81978471","wikidata":"https://www.wikidata.org/wiki/Q1196572","display_name":"Fading","level":3,"score":0.78609699010849},{"id":"https://openalex.org/C57273362","wikidata":"https://www.wikidata.org/wiki/Q576722","display_name":"Decoding methods","level":2,"score":0.7710094451904297},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7383137941360474},{"id":"https://openalex.org/C157553263","wikidata":"https://www.wikidata.org/wiki/Q5168004","display_name":"Coordinate descent","level":2,"score":0.5962892174720764},{"id":"https://openalex.org/C207987634","wikidata":"https://www.wikidata.org/wiki/Q176862","display_name":"MIMO","level":3,"score":0.5907533764839172},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.5369455814361572},{"id":"https://openalex.org/C2777210771","wikidata":"https://www.wikidata.org/wiki/Q4927124","display_name":"Block (permutation group theory)","level":2,"score":0.5300678610801697},{"id":"https://openalex.org/C2778755073","wikidata":"https://www.wikidata.org/wiki/Q10858537","display_name":"Scale (ratio)","level":2,"score":0.4220528304576874},{"id":"https://openalex.org/C137246740","wikidata":"https://www.wikidata.org/wiki/Q583970","display_name":"Spectral efficiency","level":3,"score":0.41817474365234375},{"id":"https://openalex.org/C113775141","wikidata":"https://www.wikidata.org/wiki/Q428691","display_name":"Computer engineering","level":1,"score":0.34426581859588623},{"id":"https://openalex.org/C80444323","wikidata":"https://www.wikidata.org/wiki/Q2878974","display_name":"Theoretical computer science","level":1,"score":0.3224680721759796},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.15852868556976318},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.1264374554157257},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.07077041268348694},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.0},{"id":"https://openalex.org/C2524010","wikidata":"https://www.wikidata.org/wiki/Q8087","display_name":"Geometry","level":1,"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":1,"locations":[{"id":"doi:10.1109/spawc51304.2022.9834001","is_oa":false,"landing_page_url":"https://doi.org/10.1109/spawc51304.2022.9834001","pdf_url":null,"source":{"id":"https://openalex.org/S4363607144","display_name":"2022 IEEE 23rd International Workshop on Signal Processing Advances in Wireless Communication (SPAWC)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"conference"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2022 IEEE 23rd International Workshop on Signal Processing Advances in Wireless Communication (SPAWC)","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[{"score":0.9100000262260437,"display_name":"Affordable and clean energy","id":"https://metadata.un.org/sdg/7"}],"awards":[],"funders":[{"id":"https://openalex.org/F4320335787","display_name":"Fundamental Research Funds for the Central Universities","ror":null}],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":19,"referenced_works":["https://openalex.org/W1650958574","https://openalex.org/W1987371344","https://openalex.org/W2033407996","https://openalex.org/W2130187411","https://openalex.org/W2592341259","https://openalex.org/W2593893328","https://openalex.org/W2770606349","https://openalex.org/W2784331297","https://openalex.org/W2890736047","https://openalex.org/W2965123227","https://openalex.org/W2974046131","https://openalex.org/W2981096252","https://openalex.org/W2984884920","https://openalex.org/W3034448035","https://openalex.org/W3041415426","https://openalex.org/W3080932450","https://openalex.org/W3188358066","https://openalex.org/W4206124306","https://openalex.org/W4290996263"],"related_works":["https://openalex.org/W2161378541","https://openalex.org/W2134916061","https://openalex.org/W2155567810","https://openalex.org/W2017972492","https://openalex.org/W4381785485","https://openalex.org/W2519595499","https://openalex.org/W4205696264","https://openalex.org/W3010469571","https://openalex.org/W2463053673","https://openalex.org/W2393478743"],"abstract_inverted_index":{"Cell-free":[0],"massive":[1],"multiple-input":[2],"multiple-output":[3],"(CF":[4],"mMIMO)":[5],"systems":[6],"are":[7,103],"characterized":[8],"by":[9],"having":[10],"many":[11],"more":[12],"access":[13],"points":[14],"(APs)":[15],"than":[16],"user":[17],"equipments":[18],"(UEs).":[19],"A":[20],"key":[21],"challenge":[22],"is":[23],"to":[24,53],"determine":[25],"which":[26,30],"APs":[27],"should":[28],"serve":[29],"UEs.":[31],"Previous":[32],"work":[33],"has":[34],"tackled":[35],"this":[36],"combinatorial":[37],"problem":[38,65],"heuristically.":[39],"This":[40],"paper":[41],"proposes":[42],"a":[43,62,71,94],"sparse":[44,81],"large-scale":[45],"fading":[46],"decoding":[47],"(LSFD)":[48],"design":[49],"for":[50],"CF":[51],"mMIMO":[52],"jointly":[54],"optimize":[55],"the":[56,85,99],"association":[57],"and":[58,66,101],"LSFD.":[59],"We":[60],"formulate":[61],"group":[63],"sparsity":[64],"then":[67],"solve":[68],"it":[69],"using":[70],"proximal":[72],"algorithm":[73],"with":[74],"block-coordinate":[75],"descent.":[76],"Numerical":[77],"results":[78],"show":[79],"that":[80],"LSFD":[82],"achieves":[83],"almost":[84],"same":[86],"spectral":[87],"efficiency":[88,97],"as":[89],"optimal":[90],"LSFD,":[91],"thus":[92],"achieving":[93],"higher":[95],"energy":[96],"since":[98],"processing":[100],"signaling":[102],"reduced.":[104]},"counts_by_year":[{"year":2025,"cited_by_count":3},{"year":2023,"cited_by_count":3},{"year":2022,"cited_by_count":1}],"updated_date":"2026-07-14T23:27:15.235271","created_date":"2025-10-10T00:00:00"}
