{"id":"https://openalex.org/W3160389596","doi":"https://doi.org/10.1109/icassp39728.2021.9413870","title":"An Efficient Algorithm For Device Detection And Channel Estimation In Asynchronous IOT Systems","display_name":"An Efficient Algorithm For Device Detection And Channel Estimation In Asynchronous IOT Systems","publication_year":2021,"publication_date":"2021-05-13","ids":{"openalex":"https://openalex.org/W3160389596","doi":"https://doi.org/10.1109/icassp39728.2021.9413870","mag":"3160389596"},"language":"en","primary_location":{"id":"doi:10.1109/icassp39728.2021.9413870","is_oa":false,"landing_page_url":"https://doi.org/10.1109/icassp39728.2021.9413870","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"ICASSP 2021 - 2021 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)","raw_type":"proceedings-article"},"type":"conference-paper","indexed_in":["crossref"],"open_access":{"is_oa":true,"oa_status":"green","oa_url":"http://ira.lib.polyu.edu.hk/bitstream/10397/107094/1/Liu_Efficient_Algorithm_Device.pdf","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5004292048","display_name":"Liang Liu","orcid":"https://orcid.org/0000-0002-6509-9609"},"institutions":[{"id":"https://openalex.org/I14243506","display_name":"Hong Kong Polytechnic University","ror":"https://ror.org/0030zas98","country_code":"HK","type":"education","lineage":["https://openalex.org/I14243506"]}],"countries":["HK"],"is_corresponding":false,"raw_author_name":"Liang Liu","raw_affiliation_strings":["The Hong Kong Polytechnic University"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"The Hong Kong Polytechnic University","institution_ids":["https://openalex.org/I14243506"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5020753840","display_name":"Ya\u2010Feng Liu","orcid":"https://orcid.org/0000-0002-9684-9150"},"institutions":[{"id":"https://openalex.org/I19820366","display_name":"Chinese Academy of Sciences","ror":"https://ror.org/034t30j35","country_code":"CN","type":"government","lineage":["https://openalex.org/I19820366"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Ya-Feng Liu","raw_affiliation_strings":["LSEC, ICMSEC, AMSS, Chinese Academy of Sciences"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"LSEC, ICMSEC, AMSS, Chinese Academy of Sciences","institution_ids":["https://openalex.org/I19820366"]}]}],"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":33,"citation_normalized_percentile":null,"cited_by_percentile_year":null,"biblio":{"volume":null,"issue":null,"first_page":"4815","last_page":"4819"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T12079","display_name":"IoT Networks and Protocols","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"}},"topics":[{"id":"https://openalex.org/T12079","display_name":"IoT Networks and Protocols","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/T10148","display_name":"Advanced MIMO Systems Optimization","score":0.9940000176429749,"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/T13553","display_name":"Age of Information Optimization","score":0.9937000274658203,"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/computer-science","display_name":"Computer science","score":0.7872432470321655},{"id":"https://openalex.org/keywords/coordinate-descent","display_name":"Coordinate descent","score":0.7694841027259827},{"id":"https://openalex.org/keywords/asynchronous-communication","display_name":"Asynchronous communication","score":0.6957027912139893},{"id":"https://openalex.org/keywords/block","display_name":"Block (permutation group theory)","score":0.6845404505729675},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.620074450969696},{"id":"https://openalex.org/keywords/channel","display_name":"Channel (broadcasting)","score":0.6106190085411072},{"id":"https://openalex.org/keywords/preamble","display_name":"Preamble","score":0.5953689813613892},{"id":"https://openalex.org/keywords/real-time-computing","display_name":"Real-time computing","score":0.3267204463481903},{"id":"https://openalex.org/keywords/computer-network","display_name":"Computer network","score":0.1781686246395111},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.09742680191993713}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7872432470321655},{"id":"https://openalex.org/C157553263","wikidata":"https://www.wikidata.org/wiki/Q5168004","display_name":"Coordinate descent","level":2,"score":0.7694841027259827},{"id":"https://openalex.org/C151319957","wikidata":"https://www.wikidata.org/wiki/Q752739","display_name":"Asynchronous communication","level":2,"score":0.6957027912139893},{"id":"https://openalex.org/C2777210771","wikidata":"https://www.wikidata.org/wiki/Q4927124","display_name":"Block (permutation group theory)","level":2,"score":0.6845404505729675},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.620074450969696},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.6106190085411072},{"id":"https://openalex.org/C2780691134","wikidata":"https://www.wikidata.org/wiki/Q1129448","display_name":"Preamble","level":3,"score":0.5953689813613892},{"id":"https://openalex.org/C79403827","wikidata":"https://www.wikidata.org/wiki/Q3988","display_name":"Real-time computing","level":1,"score":0.3267204463481903},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.1781686246395111},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.09742680191993713},{"id":"https://openalex.org/C2524010","wikidata":"https://www.wikidata.org/wiki/Q8087","display_name":"Geometry","level":1,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1109/icassp39728.2021.9413870","is_oa":false,"landing_page_url":"https://doi.org/10.1109/icassp39728.2021.9413870","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"ICASSP 2021 - 2021 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)","raw_type":"proceedings-article"},{"id":"pmh:oai:ira.lib.polyu.edu.hk:10397/107094","is_oa":true,"landing_page_url":"http://hdl.handle.net/10397/107094","pdf_url":"http://ira.lib.polyu.edu.hk/bitstream/10397/107094/1/Liu_Efficient_Algorithm_Device.pdf","source":{"id":"https://openalex.org/S4306400205","display_name":"PolyU Institutional Research Archive (Hong Kong Polytechnic University)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I14243506","host_organization_name":"Hong Kong Polytechnic University","host_organization_lineage":["https://openalex.org/I14243506"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"Conference Paper"}],"best_oa_location":{"id":"pmh:oai:ira.lib.polyu.edu.hk:10397/107094","is_oa":true,"landing_page_url":"http://hdl.handle.net/10397/107094","pdf_url":"http://ira.lib.polyu.edu.hk/bitstream/10397/107094/1/Liu_Efficient_Algorithm_Device.pdf","source":{"id":"https://openalex.org/S4306400205","display_name":"PolyU Institutional Research Archive (Hong Kong Polytechnic University)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I14243506","host_organization_name":"Hong Kong Polytechnic University","host_organization_lineage":["https://openalex.org/I14243506"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"Conference Paper"},"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":true},"content_urls":{"pdf":"https://content.openalex.org/works/W3160389596.pdf"},"referenced_works_count":17,"referenced_works":["https://openalex.org/W2082029531","https://openalex.org/W2138019504","https://openalex.org/W2706056020","https://openalex.org/W2784331297","https://openalex.org/W2811365745","https://openalex.org/W2883289908","https://openalex.org/W2890736047","https://openalex.org/W2947762896","https://openalex.org/W2961179947","https://openalex.org/W2962849485","https://openalex.org/W2963116117","https://openalex.org/W3001370401","https://openalex.org/W3089248281","https://openalex.org/W3160389596","https://openalex.org/W4242209908","https://openalex.org/W6773963119","https://openalex.org/W6784731110"],"related_works":["https://openalex.org/W3131553538","https://openalex.org/W2369766703","https://openalex.org/W3204754495","https://openalex.org/W2392460115","https://openalex.org/W2391859761","https://openalex.org/W203335141","https://openalex.org/W2800943838","https://openalex.org/W2933135490","https://openalex.org/W4376654045","https://openalex.org/W3031701359"],"abstract_inverted_index":{"A":[0],"great":[1],"amount":[2],"of":[3,56,79,85,93,131,137,146,157],"endeavour":[4],"has":[5],"recently":[6],"been":[7,36],"devoted":[8],"to":[9,82,89,117,142],"the":[10,66,83,91,95,122,134,143,154,158],"joint":[11],"device":[12,72],"activity":[13],"detection":[14],"and":[15,44,98,102],"channel":[16],"estimation":[17],"problem":[18,92],"in":[19,50],"massive":[20,54],"machine-type":[21],"communications.":[22],"This":[23],"paper":[24,60],"targets":[25],"at":[26],"two":[27],"practical":[28,63],"issues":[29],"along":[30],"this":[31,59,119],"line":[32],"that":[33,153],"have":[34],"not":[35],"addressed":[37],"before:":[38],"asynchronous":[39],"transmission":[40],"from":[41],"uncoordinated":[42],"users":[43],"efficient":[45],"algorithms":[46],"for":[47,166],"real-time":[48,167],"implementation":[49],"systems":[51],"with":[52,133],"a":[53,62,105,110],"number":[55,78],"devices.":[57],"Specifically,":[58],"considers":[61],"system":[64],"where":[65,121],"preamble":[67],"sent":[68],"by":[69,75],"each":[70,129],"active":[71,96],"is":[73,115,125,161],"delayed":[74],"some":[76],"unknown":[77],"symbols":[80],"due":[81],"lack":[84],"coordination.":[86],"We":[87],"manage":[88],"cast":[90],"detecting":[94],"devices":[97],"estimating":[99],"their":[100],"delay":[101],"channels":[103],"into":[104],"group":[106],"LASSO":[107],"problem.":[108,149],"Then,":[109],"block":[111,130],"coordinate":[112],"descent":[113],"algorithm":[114,160],"proposed":[116,159],"solve":[118],"problem,":[120],"closed-form":[123],"solution":[124],"available":[126],"when":[127],"updating":[128],"variables":[132,138],"other":[135],"blocks":[136],"being":[139],"fixed,":[140],"thanks":[141],"special":[144],"structure":[145],"our":[147],"interested":[148],"Our":[150],"analysis":[151],"shows":[152],"overall":[155],"complexity":[156],"low,":[162],"making":[163],"it":[164],"suitable":[165],"application.":[168]},"counts_by_year":[{"year":2025,"cited_by_count":4},{"year":2024,"cited_by_count":9},{"year":2023,"cited_by_count":8},{"year":2022,"cited_by_count":6},{"year":2021,"cited_by_count":6}],"updated_date":"2026-07-14T23:27:15.235271","created_date":"2025-10-10T00:00:00"}