{"id":"https://openalex.org/W1619128393","doi":"https://doi.org/10.1109/iwcmc.2015.7289082","title":"Estimating the number of sources: An efficient maximization approach","display_name":"Estimating the number of sources: An efficient maximization approach","publication_year":2015,"publication_date":"2015-08-01","ids":{"openalex":"https://openalex.org/W1619128393","doi":"https://doi.org/10.1109/iwcmc.2015.7289082","mag":"1619128393"},"language":"en","primary_location":{"id":"doi:10.1109/iwcmc.2015.7289082","is_oa":false,"landing_page_url":"https://doi.org/10.1109/iwcmc.2015.7289082","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2015 International Wireless Communications and Mobile Computing Conference (IWCMC)","raw_type":"proceedings-article"},"type":"preprint","indexed_in":["arxiv","crossref"],"open_access":{"is_oa":true,"oa_status":"green","oa_url":"https://arxiv.org/pdf/1810.09850","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5041739577","display_name":"Tara Salman","orcid":"https://orcid.org/0000-0003-0022-5114"},"institutions":[{"id":"https://openalex.org/I60342839","display_name":"Qatar University","ror":"https://ror.org/00yhnba62","country_code":"QA","type":"education","lineage":["https://openalex.org/I60342839"]}],"countries":["QA"],"is_corresponding":true,"raw_author_name":"Tara Salman","raw_affiliation_strings":["Computer Science and Engineering Dept., Qatar University, Doha, Qatar"],"affiliations":[{"raw_affiliation_string":"Computer Science and Engineering Dept., Qatar University, Doha, Qatar","institution_ids":["https://openalex.org/I60342839"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5069084074","display_name":"Ahmed Badawy","orcid":"https://orcid.org/0000-0002-5515-6542"},"institutions":[{"id":"https://openalex.org/I177477856","display_name":"Politecnico di Torino","ror":"https://ror.org/00bgk9508","country_code":"IT","type":"education","lineage":["https://openalex.org/I177477856"]},{"id":"https://openalex.org/I60342839","display_name":"Qatar University","ror":"https://ror.org/00yhnba62","country_code":"QA","type":"education","lineage":["https://openalex.org/I60342839"]}],"countries":["IT","QA"],"is_corresponding":false,"raw_author_name":"Ahmed Badawy","raw_affiliation_strings":["Electrical Engineering Dept., Qatar University","Politecnico di Torino, DET - iXem Lab"],"affiliations":[{"raw_affiliation_string":"Electrical Engineering Dept., Qatar University","institution_ids":["https://openalex.org/I60342839"]},{"raw_affiliation_string":"Politecnico di Torino, DET - iXem Lab","institution_ids":["https://openalex.org/I177477856"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5089660851","display_name":"Tarek Elfouly","orcid":"https://orcid.org/0000-0002-1688-6163"},"institutions":[{"id":"https://openalex.org/I60342839","display_name":"Qatar University","ror":"https://ror.org/00yhnba62","country_code":"QA","type":"education","lineage":["https://openalex.org/I60342839"]}],"countries":["QA"],"is_corresponding":false,"raw_author_name":"Tarek M. Elfouly","raw_affiliation_strings":["Computer Science and Engineering Dept., Qatar University, Doha, Qatar"],"affiliations":[{"raw_affiliation_string":"Computer Science and Engineering Dept., Qatar University, Doha, Qatar","institution_ids":["https://openalex.org/I60342839"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5021329808","display_name":"Amr Mohamed","orcid":"https://orcid.org/0000-0002-1583-7503"},"institutions":[{"id":"https://openalex.org/I60342839","display_name":"Qatar University","ror":"https://ror.org/00yhnba62","country_code":"QA","type":"education","lineage":["https://openalex.org/I60342839"]}],"countries":["QA"],"is_corresponding":false,"raw_author_name":"Amr Mohamed","raw_affiliation_strings":["Computer Science and Engineering Dept., Qatar University, Doha, Qatar"],"affiliations":[{"raw_affiliation_string":"Computer Science and Engineering Dept., Qatar University, Doha, Qatar","institution_ids":["https://openalex.org/I60342839"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5024641789","display_name":"Tamer Khattab","orcid":"https://orcid.org/0000-0003-2347-9555"},"institutions":[{"id":"https://openalex.org/I60342839","display_name":"Qatar University","ror":"https://ror.org/00yhnba62","country_code":"QA","type":"education","lineage":["https://openalex.org/I60342839"]}],"countries":["QA"],"is_corresponding":false,"raw_author_name":"Tamer Khattab","raw_affiliation_strings":["Electrical Engineering Dept., Qatar University"],"affiliations":[{"raw_affiliation_string":"Electrical Engineering Dept., Qatar University","institution_ids":["https://openalex.org/I60342839"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":5,"corresponding_author_ids":["https://openalex.org/A5041739577"],"corresponding_institution_ids":["https://openalex.org/I60342839"],"apc_list":null,"apc_paid":null,"fwci":0.2894,"has_fulltext":false,"cited_by_count":16,"citation_normalized_percentile":{"value":0.53661478,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":90,"max":98},"biblio":{"volume":null,"issue":null,"first_page":"199","last_page":"204"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10860","display_name":"Speech and Audio Processing","score":0.9997000098228455,"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"}},"topics":[{"id":"https://openalex.org/T10860","display_name":"Speech and Audio Processing","score":0.9997000098228455,"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/T10931","display_name":"Direction-of-Arrival Estimation Techniques","score":0.9995999932289124,"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/T11447","display_name":"Blind Source Separation Techniques","score":0.9995999932289124,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.6270787119865417},{"id":"https://openalex.org/keywords/maximization","display_name":"Maximization","score":0.5853548645973206},{"id":"https://openalex.org/keywords/mathematical-optimization","display_name":"Mathematical optimization","score":0.20114043354988098},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.1802988350391388}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6270787119865417},{"id":"https://openalex.org/C2776330181","wikidata":"https://www.wikidata.org/wiki/Q18358244","display_name":"Maximization","level":2,"score":0.5853548645973206},{"id":"https://openalex.org/C126255220","wikidata":"https://www.wikidata.org/wiki/Q141495","display_name":"Mathematical optimization","level":1,"score":0.20114043354988098},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.1802988350391388}],"mesh":[],"locations_count":4,"locations":[{"id":"doi:10.1109/iwcmc.2015.7289082","is_oa":false,"landing_page_url":"https://doi.org/10.1109/iwcmc.2015.7289082","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2015 International Wireless Communications and Mobile Computing Conference (IWCMC)","raw_type":"proceedings-article"},{"id":"pmh:oai:arXiv.org:1810.09850","is_oa":true,"landing_page_url":"http://arxiv.org/abs/1810.09850","pdf_url":"https://arxiv.org/pdf/1810.09850","source":{"id":"https://openalex.org/S4306400194","display_name":"arXiv (Cornell University)","issn_l":null,"issn":null,"is_oa":true,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I205783295","host_organization_name":"Cornell University","host_organization_lineage":["https://openalex.org/I205783295"],"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":"text"},{"id":"pmh:oai:porto.polito.it:2630017","is_oa":false,"landing_page_url":"http://porto.polito.it/2630017/","pdf_url":null,"source":{"id":"https://openalex.org/S4306402038","display_name":"PORTO Publications Open Repository TOrino (Politecnico di Torino)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I177477856","host_organization_name":"Politecnico di Torino","host_organization_lineage":["https://openalex.org/I177477856"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":"info:eu-repo/semantics/conferenceObject"},{"id":"pmh:oai:qspace.qu.edu.qa:10576/30125","is_oa":false,"landing_page_url":"http://hdl.handle.net/10576/30125","pdf_url":null,"source":{"id":"https://openalex.org/S4306400014","display_name":"Qatar University QSpace (Qatar University)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I60342839","host_organization_name":"Qatar University","host_organization_lineage":["https://openalex.org/I60342839"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":"Conference"}],"best_oa_location":{"id":"pmh:oai:arXiv.org:1810.09850","is_oa":true,"landing_page_url":"http://arxiv.org/abs/1810.09850","pdf_url":"https://arxiv.org/pdf/1810.09850","source":{"id":"https://openalex.org/S4306400194","display_name":"arXiv (Cornell University)","issn_l":null,"issn":null,"is_oa":true,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I205783295","host_organization_name":"Cornell University","host_organization_lineage":["https://openalex.org/I205783295"],"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":"text"},"sustainable_development_goals":[{"display_name":"Peace, Justice and strong institutions","score":0.6800000071525574,"id":"https://metadata.un.org/sdg/16"}],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":23,"referenced_works":["https://openalex.org/W1480246942","https://openalex.org/W1521023302","https://openalex.org/W1941693391","https://openalex.org/W1951073926","https://openalex.org/W2020872171","https://openalex.org/W2034549064","https://openalex.org/W2066218102","https://openalex.org/W2096710051","https://openalex.org/W2108384452","https://openalex.org/W2120796264","https://openalex.org/W2121137238","https://openalex.org/W2128657381","https://openalex.org/W2132350275","https://openalex.org/W2142635246","https://openalex.org/W2165918462","https://openalex.org/W2169143508","https://openalex.org/W2592637600","https://openalex.org/W2598194391","https://openalex.org/W2611469656","https://openalex.org/W4254782144","https://openalex.org/W4255332246","https://openalex.org/W4379510236","https://openalex.org/W6734421440"],"related_works":["https://openalex.org/W4391375266","https://openalex.org/W2899084033","https://openalex.org/W2748952813","https://openalex.org/W2390279801","https://openalex.org/W4391913857","https://openalex.org/W2358668433","https://openalex.org/W4396701345","https://openalex.org/W2376932109","https://openalex.org/W2001405890","https://openalex.org/W4396696052"],"abstract_inverted_index":{"Estimating":[0],"the":[1,17,38,81,90,94,101,111,129,140,150,159,164,167,183],"number":[2,39,82,112,141,160,198],"of":[3,19,25,37,40,83,93,113,120,142,149,155,161,166,199],"sources":[4,84,162],"received":[5,41],"by":[6],"an":[7],"antenna":[8],"array":[9,20],"have":[10,57,176],"been":[11,58],"well":[12],"known":[13],"and":[14,52,66,132,185,190,196],"investigated":[15],"since":[16],"starting":[18],"signal":[21],"processing.":[22],"Accurate":[23],"estimation":[24],"such":[26,46],"parameter":[27],"is":[28,85,106],"critical":[29],"in":[30,180],"many":[31],"applications":[32],"that":[33,172],"involve":[34],"prior":[35],"knowledge":[36],"signals.":[42],"Information":[43],"theoretic":[44],"approaches":[45],"as":[47,136],"Akaikes":[48],"information":[49],"criterion":[50],"(AIC)":[51],"minimum":[53],"description":[54],"length":[55],"(MDL)":[56],"used":[59],"extensively":[60],"even":[61],"though":[62],"they":[63],"are":[64,128],"complex":[65],"show":[67],"bad":[68],"performance":[69,179],"at":[70,163,192],"some":[71],"stages.":[72],"In":[73],"this":[74],"paper,":[75],"a":[76,121,146,177],"new":[77],"algorithm":[78,88],"for":[79],"estimating":[80],"presented.":[86],"This":[87],"exploits":[89],"estimated":[91,124],"eigenvalues":[92,156],"auto":[95,102],"correlation":[96],"coefficient":[97],"matrix":[98],"rather":[99],"than":[100],"covariance":[103],"matrix,":[104],"which":[105,127],"conventionally":[107],"used,":[108],"to":[109,117,138,157,182],"estimate":[110,139],"sources.":[114,143],"We":[115],"propose":[116],"use":[118],"either":[119],"two":[122],"simply":[123],"decision":[125],"statistics,":[126],"moving":[130,133],"increment":[131,151],"standard":[134,153],"deviation":[135,154],"metric":[137],"Then":[144],"process":[145],"simple":[147],"calculation":[148],"or":[152],"find":[158],"location":[165],"maximum":[168],"value.":[169],"Results":[170],"showed":[171],"our":[173],"proposed":[174],"algorithms":[175],"better":[178],"comparison":[181],"popular":[184],"more":[186],"computationally":[187],"expensive":[188],"AIC":[189],"MDL":[191],"low":[193,197],"SNR":[194],"values":[195],"collected":[200],"samples.":[201]},"counts_by_year":[{"year":2025,"cited_by_count":1},{"year":2024,"cited_by_count":2},{"year":2023,"cited_by_count":5},{"year":2022,"cited_by_count":1},{"year":2021,"cited_by_count":2},{"year":2020,"cited_by_count":2},{"year":2019,"cited_by_count":2},{"year":2018,"cited_by_count":1}],"updated_date":"2026-04-04T16:13:02.066488","created_date":"2025-10-10T00:00:00"}