{"id":"https://openalex.org/W1995046878","doi":"https://doi.org/10.1109/pimrc.2010.5672060","title":"Spectrum allocation with beamforming antenna in heterogeneous overlaying networks","display_name":"Spectrum allocation with beamforming antenna in heterogeneous overlaying networks","publication_year":2010,"publication_date":"2010-09-01","ids":{"openalex":"https://openalex.org/W1995046878","doi":"https://doi.org/10.1109/pimrc.2010.5672060","mag":"1995046878"},"language":"en","primary_location":{"id":"doi:10.1109/pimrc.2010.5672060","is_oa":false,"landing_page_url":"https://doi.org/10.1109/pimrc.2010.5672060","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"21st Annual IEEE International Symposium on Personal, Indoor and Mobile Radio Communications","raw_type":"proceedings-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/A5109074329","display_name":"Sunheui Ryoo","orcid":null},"institutions":[{"id":"https://openalex.org/I139264467","display_name":"Seoul National University","ror":"https://ror.org/04h9pn542","country_code":"KR","type":"education","lineage":["https://openalex.org/I139264467"]}],"countries":["KR"],"is_corresponding":true,"raw_author_name":"Sunheui Ryoo","raw_affiliation_strings":["INMC, School of EECS, Seoul National University, South Korea","INMC, School of EECS, Seoul National University, , Korea"],"affiliations":[{"raw_affiliation_string":"INMC, School of EECS, Seoul National University, South Korea","institution_ids":["https://openalex.org/I139264467"]},{"raw_affiliation_string":"INMC, School of EECS, Seoul National University, , Korea","institution_ids":["https://openalex.org/I139264467"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5035314009","display_name":"Changhee Joo","orcid":"https://orcid.org/0000-0003-1690-2298"},"institutions":[{"id":"https://openalex.org/I878022262","display_name":"Korea Institute of Science & Technology Information","ror":"https://ror.org/01k4yrm29","country_code":"KR","type":"facility","lineage":["https://openalex.org/I2801339556","https://openalex.org/I4210144908","https://openalex.org/I4387152098","https://openalex.org/I878022262"]}],"countries":["KR"],"is_corresponding":false,"raw_author_name":"Changhee Joo","raw_affiliation_strings":["Department of Information and Communication Engineering, KUT, South Korea","Dept. of Information and Communication Eng., KUT, Korea"],"affiliations":[{"raw_affiliation_string":"Department of Information and Communication Engineering, KUT, South Korea","institution_ids":["https://openalex.org/I878022262"]},{"raw_affiliation_string":"Dept. of Information and Communication Eng., KUT, Korea","institution_ids":[]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5006997436","display_name":"Saewoong Bahk","orcid":null},"institutions":[{"id":"https://openalex.org/I139264467","display_name":"Seoul National University","ror":"https://ror.org/04h9pn542","country_code":"KR","type":"education","lineage":["https://openalex.org/I139264467"]}],"countries":["KR"],"is_corresponding":false,"raw_author_name":"Saewoong Bahk","raw_affiliation_strings":["INMC, School of EECS, Seoul National University, South Korea","INMC, School of EECS, Seoul National University, , Korea"],"affiliations":[{"raw_affiliation_string":"INMC, School of EECS, Seoul National University, South Korea","institution_ids":["https://openalex.org/I139264467"]},{"raw_affiliation_string":"INMC, School of EECS, Seoul National University, , Korea","institution_ids":["https://openalex.org/I139264467"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":3,"corresponding_author_ids":["https://openalex.org/A5109074329"],"corresponding_institution_ids":["https://openalex.org/I139264467"],"apc_list":null,"apc_paid":null,"fwci":0.8659,"has_fulltext":false,"cited_by_count":4,"citation_normalized_percentile":{"value":0.75839112,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":96},"biblio":{"volume":null,"issue":null,"first_page":"1150","last_page":"1155"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10148","display_name":"Advanced MIMO Systems Optimization","score":0.9995999932289124,"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":0.9995999932289124,"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":0.9958999752998352,"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"}},{"id":"https://openalex.org/T11409","display_name":"Advanced Wireless Network Optimization","score":0.9937999844551086,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/macrocell","display_name":"Macrocell","score":0.9675465822219849},{"id":"https://openalex.org/keywords/femtocell","display_name":"Femtocell","score":0.8605382442474365},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.7649595141410828},{"id":"https://openalex.org/keywords/computer-network","display_name":"Computer network","score":0.7199592590332031},{"id":"https://openalex.org/keywords/beamforming","display_name":"Beamforming","score":0.673031747341156},{"id":"https://openalex.org/keywords/frequency-allocation","display_name":"Frequency allocation","score":0.6558347344398499},{"id":"https://openalex.org/keywords/overlay","display_name":"Overlay","score":0.6422970294952393},{"id":"https://openalex.org/keywords/wireless-network","display_name":"Wireless network","score":0.4946558177471161},{"id":"https://openalex.org/keywords/overlay-network","display_name":"Overlay network","score":0.49073994159698486},{"id":"https://openalex.org/keywords/wireless","display_name":"Wireless","score":0.48460114002227783},{"id":"https://openalex.org/keywords/interference","display_name":"Interference (communication)","score":0.4723842144012451},{"id":"https://openalex.org/keywords/reuse","display_name":"Reuse","score":0.46101561188697815},{"id":"https://openalex.org/keywords/radio-spectrum","display_name":"Radio spectrum","score":0.4593394994735718},{"id":"https://openalex.org/keywords/spectral-efficiency","display_name":"Spectral efficiency","score":0.45302814245224},{"id":"https://openalex.org/keywords/spectrum-management","display_name":"Spectrum management","score":0.4317781627178192},{"id":"https://openalex.org/keywords/distributed-computing","display_name":"Distributed computing","score":0.36043715476989746},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.28397509455680847},{"id":"https://openalex.org/keywords/base-station","display_name":"Base station","score":0.22926494479179382},{"id":"https://openalex.org/keywords/cognitive-radio","display_name":"Cognitive radio","score":0.20223048329353333},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.1414635181427002}],"concepts":[{"id":"https://openalex.org/C2778291847","wikidata":"https://www.wikidata.org/wiki/Q1163937","display_name":"Macrocell","level":3,"score":0.9675465822219849},{"id":"https://openalex.org/C152504517","wikidata":"https://www.wikidata.org/wiki/Q572455","display_name":"Femtocell","level":3,"score":0.8605382442474365},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7649595141410828},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.7199592590332031},{"id":"https://openalex.org/C54197355","wikidata":"https://www.wikidata.org/wiki/Q5782992","display_name":"Beamforming","level":2,"score":0.673031747341156},{"id":"https://openalex.org/C134579502","wikidata":"https://www.wikidata.org/wiki/Q1455619","display_name":"Frequency allocation","level":2,"score":0.6558347344398499},{"id":"https://openalex.org/C136085584","wikidata":"https://www.wikidata.org/wiki/Q910289","display_name":"Overlay","level":2,"score":0.6422970294952393},{"id":"https://openalex.org/C108037233","wikidata":"https://www.wikidata.org/wiki/Q11375","display_name":"Wireless network","level":3,"score":0.4946558177471161},{"id":"https://openalex.org/C169851745","wikidata":"https://www.wikidata.org/wiki/Q1331985","display_name":"Overlay network","level":3,"score":0.49073994159698486},{"id":"https://openalex.org/C555944384","wikidata":"https://www.wikidata.org/wiki/Q249","display_name":"Wireless","level":2,"score":0.48460114002227783},{"id":"https://openalex.org/C32022120","wikidata":"https://www.wikidata.org/wiki/Q797225","display_name":"Interference (communication)","level":3,"score":0.4723842144012451},{"id":"https://openalex.org/C206588197","wikidata":"https://www.wikidata.org/wiki/Q846574","display_name":"Reuse","level":2,"score":0.46101561188697815},{"id":"https://openalex.org/C92545706","wikidata":"https://www.wikidata.org/wiki/Q902174","display_name":"Radio spectrum","level":2,"score":0.4593394994735718},{"id":"https://openalex.org/C137246740","wikidata":"https://www.wikidata.org/wiki/Q583970","display_name":"Spectral efficiency","level":3,"score":0.45302814245224},{"id":"https://openalex.org/C63029442","wikidata":"https://www.wikidata.org/wiki/Q6504978","display_name":"Spectrum management","level":4,"score":0.4317781627178192},{"id":"https://openalex.org/C120314980","wikidata":"https://www.wikidata.org/wiki/Q180634","display_name":"Distributed computing","level":1,"score":0.36043715476989746},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.28397509455680847},{"id":"https://openalex.org/C68649174","wikidata":"https://www.wikidata.org/wiki/Q1379116","display_name":"Base station","level":2,"score":0.22926494479179382},{"id":"https://openalex.org/C149946192","wikidata":"https://www.wikidata.org/wiki/Q3235733","display_name":"Cognitive radio","level":3,"score":0.20223048329353333},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.1414635181427002},{"id":"https://openalex.org/C110875604","wikidata":"https://www.wikidata.org/wiki/Q75","display_name":"The Internet","level":2,"score":0.0},{"id":"https://openalex.org/C548081761","wikidata":"https://www.wikidata.org/wiki/Q180388","display_name":"Waste management","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},{"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/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/pimrc.2010.5672060","is_oa":false,"landing_page_url":"https://doi.org/10.1109/pimrc.2010.5672060","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"21st Annual IEEE International Symposium on Personal, Indoor and Mobile Radio Communications","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":6,"referenced_works":["https://openalex.org/W1989460852","https://openalex.org/W2021283308","https://openalex.org/W2122496159","https://openalex.org/W2126462739","https://openalex.org/W2144839491","https://openalex.org/W2164573183"],"related_works":["https://openalex.org/W2040311827","https://openalex.org/W2206637726","https://openalex.org/W1519632632","https://openalex.org/W2034139677","https://openalex.org/W2479641731","https://openalex.org/W2108749951","https://openalex.org/W117540911","https://openalex.org/W3100743243","https://openalex.org/W2804593308","https://openalex.org/W2046912604"],"abstract_inverted_index":{"Two-tier":[0],"overlay":[1,51,134],"networks":[2],"that":[3,62,100,126],"consist":[4],"of":[5,81],"a":[6,94,122],"conventional":[7],"macrocell":[8],"network":[9],"and":[10,21,33,87,108],"femtocell":[11],"hotspots":[12],"offer":[13],"an":[14],"economical":[15],"solution":[16],"for":[17,50,132],"high":[18],"user":[19],"capacity":[20],"extended":[22],"coverage.":[23],"However,":[24],"wireless":[25],"interference":[26,46],"across":[27],"tiers":[28],"causes":[29],"significant":[30],"performance":[31,124],"degradation":[32],"restricts":[34],"spectrum":[35,61,91,107,111,130],"reuse.":[36],"In":[37,53],"this":[38],"paper,":[39],"we":[40,98],"explore":[41],"schemes":[42,128],"to":[43,78,115],"mitigate":[44],"cross-tier":[45],"with":[47,59,66,83],"beamforming":[48,76],"antennas":[49],"networks.":[52,135],"our":[54],"model,":[55],"femtocells":[56,82,102],"can":[57,103,112],"operate":[58],"frequency":[60],"is":[63],"either":[64],"shared":[65,85,106,114],"or":[67],"separated":[68],"from":[69,75],"the":[70,79,84,90,105],"macrocell.":[71],"The":[72],"enhanced":[73],"SIR":[74,96],"contributes":[77],"population":[80],"spectrum,":[86],"thus":[88],"improve":[89,129],"efficiency.":[92],"Given":[93],"required":[95],"level,":[97],"show":[99,120],"which":[101],"use":[104],"how":[109],"much":[110],"be":[113],"maximize":[116],"total":[117],"utility.":[118],"We":[119],"through":[121],"numerical":[123],"evaluation":[125],"proposed":[127],"utilization":[131],"two-tier":[133]},"counts_by_year":[{"year":2014,"cited_by_count":1},{"year":2013,"cited_by_count":1},{"year":2012,"cited_by_count":2}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}