{"id":"https://openalex.org/W2920228847","doi":"https://doi.org/10.1109/twc.2019.2901482","title":"Activity Detection for Massive Connectivity Under Frequency Offsets via First-Order Algorithms","display_name":"Activity Detection for Massive Connectivity Under Frequency Offsets via First-Order Algorithms","publication_year":2019,"publication_date":"2019-03-01","ids":{"openalex":"https://openalex.org/W2920228847","doi":"https://doi.org/10.1109/twc.2019.2901482","mag":"2920228847"},"language":"en","primary_location":{"id":"doi:10.1109/twc.2019.2901482","is_oa":false,"landing_page_url":"https://doi.org/10.1109/twc.2019.2901482","pdf_url":null,"source":{"id":"https://openalex.org/S63459445","display_name":"IEEE Transactions on Wireless Communications","issn_l":"1536-1276","issn":["1536-1276","1558-2248"],"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 Wireless 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/A5100421710","display_name":"Yang Li","orcid":"https://orcid.org/0000-0003-1112-057X"},"institutions":[{"id":"https://openalex.org/I889458895","display_name":"University of Hong Kong","ror":"https://ror.org/02zhqgq86","country_code":"HK","type":"education","lineage":["https://openalex.org/I889458895"]}],"countries":["HK"],"is_corresponding":false,"raw_author_name":"Yang Li","raw_affiliation_strings":["Department of Electrical and Electronic Engineering, The University of Hong Kong, Hong Kong"],"raw_orcid":"https://orcid.org/0000-0003-1112-057X","affiliations":[{"raw_affiliation_string":"Department of Electrical and Electronic Engineering, The University of Hong Kong, Hong Kong","institution_ids":["https://openalex.org/I889458895"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5052938144","display_name":"Minghua Xia","orcid":"https://orcid.org/0000-0002-0820-2227"},"institutions":[{"id":"https://openalex.org/I157773358","display_name":"Sun Yat-sen University","ror":"https://ror.org/0064kty71","country_code":"CN","type":"education","lineage":["https://openalex.org/I157773358"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Minghua Xia","raw_affiliation_strings":["School of Electronics and Information Technology, Sun Yat-sen University, Guangzhou, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"School of Electronics and Information Technology, Sun Yat-sen University, Guangzhou, China","institution_ids":["https://openalex.org/I157773358"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5085964667","display_name":"Yik\u2010Chung Wu","orcid":"https://orcid.org/0000-0002-2738-0387"},"institutions":[{"id":"https://openalex.org/I889458895","display_name":"University of Hong Kong","ror":"https://ror.org/02zhqgq86","country_code":"HK","type":"education","lineage":["https://openalex.org/I889458895"]}],"countries":["HK"],"is_corresponding":false,"raw_author_name":"Yik-Chung Wu","raw_affiliation_strings":["Department of Electrical and Electronic Engineering, The University of Hong Kong, Hong Kong"],"raw_orcid":"https://orcid.org/0000-0002-2738-0387","affiliations":[{"raw_affiliation_string":"Department of Electrical and Electronic Engineering, The University of Hong Kong, Hong Kong","institution_ids":["https://openalex.org/I889458895"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":3,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":3.6901,"has_fulltext":false,"cited_by_count":41,"citation_normalized_percentile":{"value":0.93894213,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":95,"max":99},"biblio":{"volume":"18","issue":"3","first_page":"1988","last_page":"2002"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10500","display_name":"Sparse and Compressive Sensing Techniques","score":0.9987999796867371,"subfield":{"id":"https://openalex.org/subfields/2206","display_name":"Computational Mechanics"},"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/T10500","display_name":"Sparse and Compressive Sensing Techniques","score":0.9987999796867371,"subfield":{"id":"https://openalex.org/subfields/2206","display_name":"Computational Mechanics"},"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/T12079","display_name":"IoT Networks and Protocols","score":0.9987000226974487,"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/T11932","display_name":"Wireless Body Area Networks","score":0.9983000159263611,"subfield":{"id":"https://openalex.org/subfields/2204","display_name":"Biomedical 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":0.8611542582511902},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.5757480263710022},{"id":"https://openalex.org/keywords/synchronization","display_name":"Synchronization (alternating current)","score":0.5350536108016968},{"id":"https://openalex.org/keywords/lasso","display_name":"Lasso (programming language)","score":0.5032915472984314},{"id":"https://openalex.org/keywords/set","display_name":"Set (abstract data type)","score":0.4603957533836365},{"id":"https://openalex.org/keywords/interference","display_name":"Interference (communication)","score":0.44027724862098694},{"id":"https://openalex.org/keywords/internet-of-things","display_name":"Internet of Things","score":0.42817267775535583},{"id":"https://openalex.org/keywords/activity-detection","display_name":"Activity detection","score":0.4263766407966614},{"id":"https://openalex.org/keywords/real-time-computing","display_name":"Real-time computing","score":0.34826838970184326},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.20543953776359558},{"id":"https://openalex.org/keywords/computer-network","display_name":"Computer network","score":0.1272759735584259},{"id":"https://openalex.org/keywords/channel","display_name":"Channel (broadcasting)","score":0.11866605281829834},{"id":"https://openalex.org/keywords/embedded-system","display_name":"Embedded system","score":0.09815734624862671}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.8611542582511902},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.5757480263710022},{"id":"https://openalex.org/C2778562939","wikidata":"https://www.wikidata.org/wiki/Q1298791","display_name":"Synchronization (alternating current)","level":3,"score":0.5350536108016968},{"id":"https://openalex.org/C37616216","wikidata":"https://www.wikidata.org/wiki/Q3218363","display_name":"Lasso (programming language)","level":2,"score":0.5032915472984314},{"id":"https://openalex.org/C177264268","wikidata":"https://www.wikidata.org/wiki/Q1514741","display_name":"Set (abstract data type)","level":2,"score":0.4603957533836365},{"id":"https://openalex.org/C32022120","wikidata":"https://www.wikidata.org/wiki/Q797225","display_name":"Interference (communication)","level":3,"score":0.44027724862098694},{"id":"https://openalex.org/C81860439","wikidata":"https://www.wikidata.org/wiki/Q251212","display_name":"Internet of Things","level":2,"score":0.42817267775535583},{"id":"https://openalex.org/C2988656282","wikidata":"https://www.wikidata.org/wiki/Q4677630","display_name":"Activity detection","level":2,"score":0.4263766407966614},{"id":"https://openalex.org/C79403827","wikidata":"https://www.wikidata.org/wiki/Q3988","display_name":"Real-time computing","level":1,"score":0.34826838970184326},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.20543953776359558},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.1272759735584259},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.11866605281829834},{"id":"https://openalex.org/C149635348","wikidata":"https://www.wikidata.org/wiki/Q193040","display_name":"Embedded system","level":1,"score":0.09815734624862671},{"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/C136764020","wikidata":"https://www.wikidata.org/wiki/Q466","display_name":"World Wide Web","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/twc.2019.2901482","is_oa":false,"landing_page_url":"https://doi.org/10.1109/twc.2019.2901482","pdf_url":null,"source":{"id":"https://openalex.org/S63459445","display_name":"IEEE Transactions on Wireless Communications","issn_l":"1536-1276","issn":["1536-1276","1558-2248"],"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 Wireless Communications","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[{"id":"https://openalex.org/G7556521310","display_name":"\u65e0\u7ebf\u6570\u636e\u4e0e\u80fd\u91cf\u540c\u65f6\u4f20\u8f93\u7f51\u7edc\u7684\u82e5\u5e72\u5173\u952e\u6280\u672f\u7814\u7a76","funder_award_id":"61671488","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":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":58,"referenced_works":["https://openalex.org/W1480066506","https://openalex.org/W1510028821","https://openalex.org/W1543985333","https://openalex.org/W1866218998","https://openalex.org/W1874281995","https://openalex.org/W2003787552","https://openalex.org/W2027982384","https://openalex.org/W2028781966","https://openalex.org/W2042792015","https://openalex.org/W2050704771","https://openalex.org/W2057370874","https://openalex.org/W2061225176","https://openalex.org/W2093700353","https://openalex.org/W2100556411","https://openalex.org/W2101288405","https://openalex.org/W2106905000","https://openalex.org/W2109424135","https://openalex.org/W2113882858","https://openalex.org/W2125838225","https://openalex.org/W2130076109","https://openalex.org/W2135046866","https://openalex.org/W2142224912","https://openalex.org/W2142294962","https://openalex.org/W2143884558","https://openalex.org/W2146281846","https://openalex.org/W2149414429","https://openalex.org/W2154394938","https://openalex.org/W2161623414","https://openalex.org/W2164278908","https://openalex.org/W2262889796","https://openalex.org/W2289930662","https://openalex.org/W2406669631","https://openalex.org/W2474610106","https://openalex.org/W2508393166","https://openalex.org/W2565753657","https://openalex.org/W2604152202","https://openalex.org/W2643502490","https://openalex.org/W2706056020","https://openalex.org/W2754295017","https://openalex.org/W2774912636","https://openalex.org/W2784331297","https://openalex.org/W2791712414","https://openalex.org/W2792754936","https://openalex.org/W2794457407","https://openalex.org/W2797639318","https://openalex.org/W2798766386","https://openalex.org/W2890736047","https://openalex.org/W2962777297","https://openalex.org/W2963207194","https://openalex.org/W2963703311","https://openalex.org/W2963750040","https://openalex.org/W3100321248","https://openalex.org/W3104684837","https://openalex.org/W3121478986","https://openalex.org/W4246841922","https://openalex.org/W4254313632","https://openalex.org/W4292363360","https://openalex.org/W6713884384"],"related_works":["https://openalex.org/W4245926026","https://openalex.org/W4311097251","https://openalex.org/W2586548817","https://openalex.org/W4256576576","https://openalex.org/W2625093826","https://openalex.org/W4200598720","https://openalex.org/W2921026492","https://openalex.org/W3090384609","https://openalex.org/W4247463117","https://openalex.org/W3194013178"],"abstract_inverted_index":{"Activity":[0],"detection":[1,46,80,84,104,161],"in":[2,136],"machine-type":[3],"communication":[4],"(MTC)":[5],"has":[6],"been":[7],"recognized":[8],"as":[9],"an":[10],"effective":[11],"way":[12],"to":[13,24,141,143,182],"support":[14],"massive":[15,38],"connectivity":[16],"of":[17,29,36,146],"the":[18,25,30,37,44,53,57,68,74,78,117,130,155,176],"Internet-of-Things":[19],"(IoT)":[20],"devices.":[21],"However,":[22],"due":[23],"sporadic":[26],"traffic":[27],"pattern":[28],"MTC,":[31],"only":[32],"a":[33,47,109,113,144,164],"small":[34],"portion":[35],"potential":[39],"devices":[40,60],"are":[41,61,87,119],"active,":[42],"making":[43,122],"activity":[45,79,103,173],"challenging":[48],"large-scale":[49,126],"sparsity-constrained":[50,114,131,178],"problem.":[51],"On":[52],"other":[54],"hand,":[55],"since":[56],"low-cost":[58],"IoT":[59,127],"commonly":[62],"equipped":[63],"with":[64],"cheap":[65],"crystal":[66],"oscillators,":[67],"resulting":[69],"frequency":[70,91,107,170],"offsets":[71],"would":[72],"intensify":[73],"multi-user":[75],"interference":[76],"during":[77],"and":[81,112,138,172],"invalidate":[82],"existing":[83],"methods":[85,101,118,157],"that":[86,153,167],"designed":[88],"under":[89,105],"ideal":[90],"synchronization.":[92],"To":[93],"fill":[94],"this":[95,97],"gap,":[96],"paper":[98],"proposes":[99],"two":[100,186],"for":[102,125],"unknown":[106],"offsets:":[108],"Lasso-based":[110],"method":[111,132,179],"method.":[115],"Both":[116],"first-order":[120],"algorithms,":[121],"them":[123],"suitable":[124],"systems.":[128],"Furthermore,":[129],"can":[133],"be":[134],"executed":[135],"parallel":[137],"is":[139,180],"proved":[140],"converge":[142],"set":[145],"critical":[147],"points.":[148],"The":[149],"simulation":[150],"results":[151],"show":[152],"both":[154],"proposed":[156,177],"achieve":[158],"much":[159],"better":[160,184],"performance":[162],"than":[163,185],"two-stage":[165],"approach":[166],"separately":[168],"performs":[169],"synchronization":[171],"detection.":[174],"Moreover,":[175],"shown":[181],"perform":[183],"competing":[187],"algorithms":[188],"exploiting":[189],"hierarchical":[190],"sparsity.":[191]},"counts_by_year":[{"year":2025,"cited_by_count":6},{"year":2024,"cited_by_count":9},{"year":2023,"cited_by_count":7},{"year":2022,"cited_by_count":9},{"year":2021,"cited_by_count":3},{"year":2020,"cited_by_count":3},{"year":2019,"cited_by_count":4}],"updated_date":"2026-06-11T09:08:48.828518","created_date":"2025-10-10T00:00:00"}