{"id":"https://openalex.org/W4318586141","doi":"https://doi.org/10.1109/lcomm.2023.3240842","title":"Time-Variant Spectrum Mapping via Reduced Basis Representation and Greedy Sampling Locations Optimization","display_name":"Time-Variant Spectrum Mapping via Reduced Basis Representation and Greedy Sampling Locations Optimization","publication_year":2023,"publication_date":"2023-01-30","ids":{"openalex":"https://openalex.org/W4318586141","doi":"https://doi.org/10.1109/lcomm.2023.3240842"},"language":"en","primary_location":{"id":"doi:10.1109/lcomm.2023.3240842","is_oa":false,"landing_page_url":"https://doi.org/10.1109/lcomm.2023.3240842","pdf_url":null,"source":{"id":"https://openalex.org/S147316732","display_name":"IEEE Communications Letters","issn_l":"1089-7798","issn":["1089-7798","1558-2558","2373-7891"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310316002","host_organization_name":"IEEE Communications Society","host_organization_lineage":["https://openalex.org/P4310316002","https://openalex.org/P4310319808"],"host_organization_lineage_names":["IEEE Communications Society","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 Communications Letters","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/A5024839880","display_name":"Feng Shen","orcid":"https://orcid.org/0000-0002-9488-1368"},"institutions":[{"id":"https://openalex.org/I9842412","display_name":"Nanjing University of Aeronautics and Astronautics","ror":"https://ror.org/01scyh794","country_code":"CN","type":"education","lineage":["https://openalex.org/I9842412"]}],"countries":["CN"],"is_corresponding":true,"raw_author_name":"Feng Shen","raw_affiliation_strings":["College of Electronics and Information Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, China"],"affiliations":[{"raw_affiliation_string":"College of Electronics and Information Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, China","institution_ids":["https://openalex.org/I9842412"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5076455133","display_name":"Guoru Ding","orcid":"https://orcid.org/0000-0003-1780-2547"},"institutions":[{"id":"https://openalex.org/I4210163363","display_name":"PLA Army Engineering University","ror":"https://ror.org/05mgp8x93","country_code":"CN","type":"education","lineage":["https://openalex.org/I4210163363"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Guoru Ding","raw_affiliation_strings":["College of Communications Engineering, Army Engineering University, Nanjing, China"],"affiliations":[{"raw_affiliation_string":"College of Communications Engineering, Army Engineering University, Nanjing, China","institution_ids":["https://openalex.org/I4210163363"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5100785103","display_name":"Qihui Wu","orcid":"https://orcid.org/0000-0002-9521-5084"},"institutions":[{"id":"https://openalex.org/I9842412","display_name":"Nanjing University of Aeronautics and Astronautics","ror":"https://ror.org/01scyh794","country_code":"CN","type":"education","lineage":["https://openalex.org/I9842412"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Qihui Wu","raw_affiliation_strings":["College of Electronics and Information Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, China"],"affiliations":[{"raw_affiliation_string":"College of Electronics and Information Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, China","institution_ids":["https://openalex.org/I9842412"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":3,"corresponding_author_ids":["https://openalex.org/A5024839880"],"corresponding_institution_ids":["https://openalex.org/I9842412"],"apc_list":null,"apc_paid":null,"fwci":1.2975,"has_fulltext":false,"cited_by_count":6,"citation_normalized_percentile":{"value":0.74142373,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":95,"max":98},"biblio":{"volume":"27","issue":"3","first_page":"991","last_page":"995"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10500","display_name":"Sparse and Compressive Sensing Techniques","score":0.9998000264167786,"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":0.9998000264167786,"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/T11447","display_name":"Blind Source Separation Techniques","score":0.9994999766349792,"subfield":{"id":"https://openalex.org/subfields/1711","display_name":"Signal Processing"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10579","display_name":"Cognitive Radio Networks and Spectrum Sensing","score":0.996999979019165,"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/greedy-algorithm","display_name":"Greedy algorithm","score":0.6909634470939636},{"id":"https://openalex.org/keywords/underdetermined-system","display_name":"Underdetermined system","score":0.6757903099060059},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.638425886631012},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.53705894947052},{"id":"https://openalex.org/keywords/mathematical-optimization","display_name":"Mathematical optimization","score":0.5011508464813232},{"id":"https://openalex.org/keywords/signal-reconstruction","display_name":"Signal reconstruction","score":0.47578370571136475},{"id":"https://openalex.org/keywords/basis","display_name":"Basis (linear algebra)","score":0.46777597069740295},{"id":"https://openalex.org/keywords/sampling","display_name":"Sampling (signal processing)","score":0.4460785388946533},{"id":"https://openalex.org/keywords/optimization-problem","display_name":"Optimization problem","score":0.44116416573524475},{"id":"https://openalex.org/keywords/computational-complexity-theory","display_name":"Computational complexity theory","score":0.43558192253112793},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.32301920652389526},{"id":"https://openalex.org/keywords/signal-processing","display_name":"Signal processing","score":0.2311142385005951},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.11549162864685059}],"concepts":[{"id":"https://openalex.org/C51823790","wikidata":"https://www.wikidata.org/wiki/Q504353","display_name":"Greedy algorithm","level":2,"score":0.6909634470939636},{"id":"https://openalex.org/C179690561","wikidata":"https://www.wikidata.org/wiki/Q4316110","display_name":"Underdetermined system","level":2,"score":0.6757903099060059},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.638425886631012},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.53705894947052},{"id":"https://openalex.org/C126255220","wikidata":"https://www.wikidata.org/wiki/Q141495","display_name":"Mathematical optimization","level":1,"score":0.5011508464813232},{"id":"https://openalex.org/C70958404","wikidata":"https://www.wikidata.org/wiki/Q7512728","display_name":"Signal reconstruction","level":4,"score":0.47578370571136475},{"id":"https://openalex.org/C12426560","wikidata":"https://www.wikidata.org/wiki/Q189569","display_name":"Basis (linear algebra)","level":2,"score":0.46777597069740295},{"id":"https://openalex.org/C140779682","wikidata":"https://www.wikidata.org/wiki/Q210868","display_name":"Sampling (signal processing)","level":3,"score":0.4460785388946533},{"id":"https://openalex.org/C137836250","wikidata":"https://www.wikidata.org/wiki/Q984063","display_name":"Optimization problem","level":2,"score":0.44116416573524475},{"id":"https://openalex.org/C179799912","wikidata":"https://www.wikidata.org/wiki/Q205084","display_name":"Computational complexity theory","level":2,"score":0.43558192253112793},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.32301920652389526},{"id":"https://openalex.org/C104267543","wikidata":"https://www.wikidata.org/wiki/Q208163","display_name":"Signal processing","level":3,"score":0.2311142385005951},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.11549162864685059},{"id":"https://openalex.org/C94915269","wikidata":"https://www.wikidata.org/wiki/Q1834857","display_name":"Detector","level":2,"score":0.0},{"id":"https://openalex.org/C554190296","wikidata":"https://www.wikidata.org/wiki/Q47528","display_name":"Radar","level":2,"score":0.0},{"id":"https://openalex.org/C2524010","wikidata":"https://www.wikidata.org/wiki/Q8087","display_name":"Geometry","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/lcomm.2023.3240842","is_oa":false,"landing_page_url":"https://doi.org/10.1109/lcomm.2023.3240842","pdf_url":null,"source":{"id":"https://openalex.org/S147316732","display_name":"IEEE Communications Letters","issn_l":"1089-7798","issn":["1089-7798","1558-2558","2373-7891"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310316002","host_organization_name":"IEEE Communications Society","host_organization_lineage":["https://openalex.org/P4310316002","https://openalex.org/P4310319808"],"host_organization_lineage_names":["IEEE Communications Society","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 Communications Letters","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[{"score":0.6700000166893005,"display_name":"Sustainable cities and communities","id":"https://metadata.un.org/sdg/11"}],"awards":[{"id":"https://openalex.org/G4000392769","display_name":null,"funder_award_id":"61827801","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G8145678639","display_name":null,"funder_award_id":"61871398","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":17,"referenced_works":["https://openalex.org/W2107561590","https://openalex.org/W2167230435","https://openalex.org/W2169207653","https://openalex.org/W2201708090","https://openalex.org/W2245380120","https://openalex.org/W2342915358","https://openalex.org/W2612025759","https://openalex.org/W2712405193","https://openalex.org/W2963448313","https://openalex.org/W2963780177","https://openalex.org/W2964010532","https://openalex.org/W2964017122","https://openalex.org/W2998379392","https://openalex.org/W3185935527","https://openalex.org/W3190371860","https://openalex.org/W3194647307","https://openalex.org/W4220694506"],"related_works":["https://openalex.org/W2155580531","https://openalex.org/W2067878805","https://openalex.org/W2119496911","https://openalex.org/W2198678136","https://openalex.org/W2775644724","https://openalex.org/W2799183845","https://openalex.org/W2067810487","https://openalex.org/W2979334915","https://openalex.org/W2765324516","https://openalex.org/W2381127329"],"abstract_inverted_index":{"Spectrum":[0],"mapping":[1,127],"has":[2],"been":[3],"increasingly":[4],"important":[5],"in":[6,118,124],"various":[7],"wireless":[8],"communication":[9],"applications,":[10],"such":[11],"as":[12],"spectrum":[13,20,32,63,80,92,126],"management,":[14],"network":[15],"planning,":[16],"power":[17],"control,":[18],"dynamic":[19],"access":[21],"etc.":[22],"In":[23,43],"this":[24],"letter,":[25],"we":[26,56],"consider":[27],"the":[28,49,62,73,77,87,107,112],"problem":[29,90,99],"of":[30,40,91,114],"time-varying":[31],"situation":[33,81,93],"map":[34],"reconstruction":[35,119],"using":[36],"a":[37,66,96],"small":[38],"amount":[39],"sampled":[41],"data.":[42,64],"contrast":[44],"to":[45,71],"traditional":[46],"assumption":[47],"that":[48],"statistical":[50],"signal":[51],"propagation":[52,59],"model":[53],"is":[54,69],"known,":[55],"infer":[57],"spatial":[58,79,101],"characteristics":[60],"from":[61],"Then,":[65],"greedy":[67],"optimization":[68],"applied":[70],"calculate":[72],"sampling":[74],"locations":[75],"with":[76,100],"reduced":[78],"basis":[82],"representation,":[83],"which":[84],"also":[85],"converts":[86],"original":[88],"underdetermined":[89],"recovery":[94],"into":[95],"least":[97],"squares":[98],"smoothness":[102],"constraint,":[103],"thus":[104],"greatly":[105],"reducing":[106],"matrix":[108],"operations.":[109],"Simulations":[110],"confirm":[111],"superiority":[113],"our":[115],"proposed":[116],"algorithm":[117],"performance":[120],"and":[121],"computational":[122],"efficiency":[123],"online":[125],"tasks.":[128]},"counts_by_year":[{"year":2025,"cited_by_count":2},{"year":2024,"cited_by_count":4}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}
