{"id":"https://openalex.org/W2922238221","doi":"https://doi.org/10.1093/comjnl/bxz007","title":"Using Clustering Techniques to Plan Indoor Femtocell Base Stations Layout in Multi-floors","display_name":"Using Clustering Techniques to Plan Indoor Femtocell Base Stations Layout in Multi-floors","publication_year":2019,"publication_date":"2019-01-16","ids":{"openalex":"https://openalex.org/W2922238221","doi":"https://doi.org/10.1093/comjnl/bxz007","mag":"2922238221"},"language":"en","primary_location":{"id":"doi:10.1093/comjnl/bxz007","is_oa":false,"landing_page_url":"https://doi.org/10.1093/comjnl/bxz007","pdf_url":null,"source":{"id":"https://openalex.org/S44643521","display_name":"The Computer Journal","issn_l":"0010-4620","issn":["0010-4620","1460-2067"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310311648","host_organization_name":"Oxford University Press","host_organization_lineage":["https://openalex.org/P4310311648","https://openalex.org/P4310311647"],"host_organization_lineage_names":["Oxford University Press","University of Oxford"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"The Computer Journal","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/A5101771709","display_name":"Lamiaa Fattouh Ibrahim","orcid":"https://orcid.org/0000-0001-5671-8941"},"institutions":[{"id":"https://openalex.org/I145487455","display_name":"Cairo University","ror":"https://ror.org/03q21mh05","country_code":"EG","type":"education","lineage":["https://openalex.org/I145487455"]}],"countries":["EG"],"is_corresponding":true,"raw_author_name":"Lamiaa F Ibrahim","raw_affiliation_strings":["Institute of Statistical Studies and Research, Cairo University , Cairo, Egypt"],"affiliations":[{"raw_affiliation_string":"Institute of Statistical Studies and Research, Cairo University , Cairo, Egypt","institution_ids":["https://openalex.org/I145487455"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5102951962","display_name":"Hesham A. Salman","orcid":"https://orcid.org/0009-0005-1048-1658"},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Hesham A Salman","raw_affiliation_strings":["Higher Institute of Computer and Information Technology, Alshrouk Academy, Cairo, Egypt"],"affiliations":[{"raw_affiliation_string":"Higher Institute of Computer and Information Technology, Alshrouk Academy, Cairo, Egypt","institution_ids":[]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5086401212","display_name":"Sara Y Sery","orcid":null},"institutions":[{"id":"https://openalex.org/I107720978","display_name":"Ain Shams University","ror":"https://ror.org/00cb9w016","country_code":"EG","type":"education","lineage":["https://openalex.org/I107720978"]},{"id":"https://openalex.org/I185163786","display_name":"King Abdulaziz University","ror":"https://ror.org/02ma4wv74","country_code":"SA","type":"education","lineage":["https://openalex.org/I185163786"]}],"countries":["EG","SA"],"is_corresponding":false,"raw_author_name":"Sara Y Sery","raw_affiliation_strings":["Faculty of Computer and Information Sciences, Ain Shams University, Cairo, Egypt","Faculty of Computing and Information Technology King Abdulaziz University, Jeddah, Saudi Arabia"],"affiliations":[{"raw_affiliation_string":"Faculty of Computer and Information Sciences, Ain Shams University, Cairo, Egypt","institution_ids":["https://openalex.org/I107720978"]},{"raw_affiliation_string":"Faculty of Computing and Information Technology King Abdulaziz University, Jeddah, Saudi Arabia","institution_ids":["https://openalex.org/I185163786"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5020692875","display_name":"Zaki Taha","orcid":"https://orcid.org/0009-0003-4090-6026"},"institutions":[{"id":"https://openalex.org/I107720978","display_name":"Ain Shams University","ror":"https://ror.org/00cb9w016","country_code":"EG","type":"education","lineage":["https://openalex.org/I107720978"]}],"countries":["EG"],"is_corresponding":false,"raw_author_name":"Zaki Taha","raw_affiliation_strings":["Faculty of Computer and Information Sciences, Ain Shams University, Cairo, Egypt"],"affiliations":[{"raw_affiliation_string":"Faculty of Computer and Information Sciences, Ain Shams University, Cairo, Egypt","institution_ids":["https://openalex.org/I107720978"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":4,"corresponding_author_ids":["https://openalex.org/A5101771709"],"corresponding_institution_ids":["https://openalex.org/I145487455"],"apc_list":{"value":2635,"currency":"GBP","value_usd":3232},"apc_paid":null,"fwci":1.073,"has_fulltext":false,"cited_by_count":10,"citation_normalized_percentile":{"value":0.77307424,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":98},"biblio":{"volume":"62","issue":"6","first_page":"919","last_page":"930"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10148","display_name":"Advanced MIMO Systems Optimization","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/T10148","display_name":"Advanced MIMO Systems Optimization","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/T10936","display_name":"Millimeter-Wave Propagation and Modeling","score":0.9984999895095825,"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":0.9848999977111816,"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/femtocell","display_name":"Femtocell","score":0.9064859747886658},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.7790586948394775},{"id":"https://openalex.org/keywords/base-station","display_name":"Base station","score":0.7401182651519775},{"id":"https://openalex.org/keywords/cluster-analysis","display_name":"Cluster analysis","score":0.6448781490325928},{"id":"https://openalex.org/keywords/dbscan","display_name":"DBSCAN","score":0.615229606628418},{"id":"https://openalex.org/keywords/path-loss","display_name":"Path loss","score":0.5412506461143494},{"id":"https://openalex.org/keywords/spectral-efficiency","display_name":"Spectral efficiency","score":0.4457726776599884},{"id":"https://openalex.org/keywords/computer-network","display_name":"Computer network","score":0.42952612042427063},{"id":"https://openalex.org/keywords/cellular-network","display_name":"Cellular network","score":0.42546185851097107},{"id":"https://openalex.org/keywords/signal-to-interference-plus-noise-ratio","display_name":"Signal-to-interference-plus-noise ratio","score":0.4112861156463623},{"id":"https://openalex.org/keywords/real-time-computing","display_name":"Real-time computing","score":0.37078702449798584},{"id":"https://openalex.org/keywords/mathematical-optimization","display_name":"Mathematical optimization","score":0.36049479246139526},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.34998083114624023},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.184831440448761},{"id":"https://openalex.org/keywords/wireless","display_name":"Wireless","score":0.11699432134628296},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.11172163486480713},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.08859923481941223}],"concepts":[{"id":"https://openalex.org/C152504517","wikidata":"https://www.wikidata.org/wiki/Q572455","display_name":"Femtocell","level":3,"score":0.9064859747886658},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7790586948394775},{"id":"https://openalex.org/C68649174","wikidata":"https://www.wikidata.org/wiki/Q1379116","display_name":"Base station","level":2,"score":0.7401182651519775},{"id":"https://openalex.org/C73555534","wikidata":"https://www.wikidata.org/wiki/Q622825","display_name":"Cluster analysis","level":2,"score":0.6448781490325928},{"id":"https://openalex.org/C46576248","wikidata":"https://www.wikidata.org/wiki/Q1114630","display_name":"DBSCAN","level":5,"score":0.615229606628418},{"id":"https://openalex.org/C194273485","wikidata":"https://www.wikidata.org/wiki/Q1478845","display_name":"Path loss","level":3,"score":0.5412506461143494},{"id":"https://openalex.org/C137246740","wikidata":"https://www.wikidata.org/wiki/Q583970","display_name":"Spectral efficiency","level":3,"score":0.4457726776599884},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.42952612042427063},{"id":"https://openalex.org/C153646914","wikidata":"https://www.wikidata.org/wiki/Q535695","display_name":"Cellular network","level":2,"score":0.42546185851097107},{"id":"https://openalex.org/C98824394","wikidata":"https://www.wikidata.org/wiki/Q4035626","display_name":"Signal-to-interference-plus-noise ratio","level":3,"score":0.4112861156463623},{"id":"https://openalex.org/C79403827","wikidata":"https://www.wikidata.org/wiki/Q3988","display_name":"Real-time computing","level":1,"score":0.37078702449798584},{"id":"https://openalex.org/C126255220","wikidata":"https://www.wikidata.org/wiki/Q141495","display_name":"Mathematical optimization","level":1,"score":0.36049479246139526},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.34998083114624023},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.184831440448761},{"id":"https://openalex.org/C555944384","wikidata":"https://www.wikidata.org/wiki/Q249","display_name":"Wireless","level":2,"score":0.11699432134628296},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.11172163486480713},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.08859923481941223},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.0},{"id":"https://openalex.org/C94641424","wikidata":"https://www.wikidata.org/wiki/Q5172845","display_name":"Correlation clustering","level":3,"score":0.0},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.0},{"id":"https://openalex.org/C163258240","wikidata":"https://www.wikidata.org/wiki/Q25342","display_name":"Power (physics)","level":2,"score":0.0},{"id":"https://openalex.org/C104047586","wikidata":"https://www.wikidata.org/wiki/Q5033439","display_name":"Canopy clustering algorithm","level":4,"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:10.1093/comjnl/bxz007","is_oa":false,"landing_page_url":"https://doi.org/10.1093/comjnl/bxz007","pdf_url":null,"source":{"id":"https://openalex.org/S44643521","display_name":"The Computer Journal","issn_l":"0010-4620","issn":["0010-4620","1460-2067"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310311648","host_organization_name":"Oxford University Press","host_organization_lineage":["https://openalex.org/P4310311648","https://openalex.org/P4310311647"],"host_organization_lineage_names":["Oxford University Press","University of Oxford"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"The Computer Journal","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[{"display_name":"Industry, innovation and infrastructure","score":0.6399999856948853,"id":"https://metadata.un.org/sdg/9"}],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":15,"referenced_works":["https://openalex.org/W147612390","https://openalex.org/W1574580469","https://openalex.org/W2086795056","https://openalex.org/W2087086609","https://openalex.org/W2109159967","https://openalex.org/W2122496159","https://openalex.org/W2126392694","https://openalex.org/W2132136608","https://openalex.org/W2141440998","https://openalex.org/W2167053450","https://openalex.org/W2308977993","https://openalex.org/W2488517526","https://openalex.org/W2517876382","https://openalex.org/W4211129352","https://openalex.org/W6672385184"],"related_works":["https://openalex.org/W2325429773","https://openalex.org/W2042799635","https://openalex.org/W2089019167","https://openalex.org/W1998125291","https://openalex.org/W1990678570","https://openalex.org/W2288005578","https://openalex.org/W3124054189","https://openalex.org/W1972062186","https://openalex.org/W3163825380","https://openalex.org/W2922238221"],"abstract_inverted_index":{"Long-term":[0],"evolution":[1],"\u2018LTE\u2019":[2],"advanced-based":[3],"heterogeneous":[4],"networks":[5],"are":[6,39,158],"used":[7,159],"to":[8,20,35,72,100,113,142,145,182],"improve":[9],"spectral":[10],"efficiency":[11],"per":[12],"unit":[13],"area.":[14],"Nowadays,":[15],"the":[16,22,48,74,102,109,178,184,190],"network":[17],"specialists":[18],"try":[19],"increase":[21],"capacity":[23],"of":[24,50,53,58,76,92,104,111,153,163,173,186],"indoor":[25,28,60,106],"by":[26],"adding":[27,40],"base":[29,54],"stations,":[30,55],"but":[31],"other":[32],"problems":[33],"appear":[34],"them":[36,41],"because":[37],"they":[38],"without":[42],"considering":[43],"critical":[44],"constraints":[45],"such":[46],"as":[47],"number":[49,185],"users,":[51],"type":[52,57],"and":[56,61,82,123,127,155,160,192],"wall,":[59],"outdoor":[62],"interference.":[63],"This":[64],"paper":[65],"proposed":[66,179],"a":[67,196],"system":[68],"using":[69],"cluster":[70],"techniques":[71],"facilitate":[73],"process":[75],"cell":[77],"planning":[78],"that":[79,177],"involves":[80],"locating":[81],"configuring":[83],"infrastructure":[84],"for":[85],"mobile":[86],"networks.":[87],"The":[88,171],"density-based":[89],"spatial":[90],"clustering":[91],"applications":[93],"with":[94,108,130,195],"noise":[95],"(DBSCAN)":[96],"algorithm":[97,175,180],"was":[98,140],"modified":[99,141],"solve":[101],"problem":[103],"coverage":[105,125],"area,":[107],"existence":[110],"obstacles":[112,164],"choose":[114],"suitable":[115],"femtocell":[116],"stations":[117],"which":[118],"satisfy":[119],"minimum":[120],"path":[121,132],"loss":[122,133,199],"maximize":[124,143,193],"area":[126],"minimize":[128,189],"cost":[129,191],"guaranteed":[131],"threshold.":[134,200],"Subsequently,":[135],"Hierarchical":[136],"Agglomerative":[137],"Clustering":[138],"(HAC)":[139],"Signal":[144],"Interference":[146],"plus":[147],"Noise":[148],"Ratio":[149],"SINR.":[150],"Suitable":[151],"penetrations":[152],"4":[154],"5":[156],"G":[157],"different":[161],"types":[162],"taking":[165],"into":[166],"consideration":[167],"their":[168],"penetration":[169],"values.":[170],"results":[172],"this":[174],"indicate":[176],"conducts":[181],"decrease":[183],"Femtocells":[187],"so":[188],"SINR":[194],"grantee":[197],"pass":[198]},"counts_by_year":[{"year":2023,"cited_by_count":1},{"year":2022,"cited_by_count":3},{"year":2021,"cited_by_count":1},{"year":2020,"cited_by_count":1},{"year":2019,"cited_by_count":4}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}
