{"id":"https://openalex.org/W2107588832","doi":"https://doi.org/10.1109/pimrc.2011.6139803","title":"Design of layered radio environment maps for RAN optimization in heterogeneous LTE systems","display_name":"Design of layered radio environment maps for RAN optimization in heterogeneous LTE systems","publication_year":2011,"publication_date":"2011-09-01","ids":{"openalex":"https://openalex.org/W2107588832","doi":"https://doi.org/10.1109/pimrc.2011.6139803","mag":"2107588832"},"language":"en","primary_location":{"id":"doi:10.1109/pimrc.2011.6139803","is_oa":false,"landing_page_url":"https://doi.org/10.1109/pimrc.2011.6139803","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2011 IEEE 22nd International Symposium on Personal, Indoor and Mobile Radio Communications","raw_type":"proceedings-article"},"type":"conference-paper","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/A5102027992","display_name":"Tao Cai","orcid":"https://orcid.org/0000-0002-3264-6178"},"institutions":[{"id":"https://openalex.org/I4210159102","display_name":"Huawei Technologies (Sweden)","ror":"https://ror.org/0500fyd17","country_code":"SE","type":"company","lineage":["https://openalex.org/I2250955327","https://openalex.org/I4210159102"]}],"countries":["SE"],"is_corresponding":false,"raw_author_name":"Tao Cai","raw_affiliation_strings":["Huawei Technologies Sweden AB, Kista, Sweden","Huawei Technologies Sweden, Skalholtsgatan 11, S-164 94 Kista, Sweden"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Huawei Technologies Sweden AB, Kista, Sweden","institution_ids":["https://openalex.org/I4210159102"]},{"raw_affiliation_string":"Huawei Technologies Sweden, Skalholtsgatan 11, S-164 94 Kista, Sweden","institution_ids":["https://openalex.org/I4210159102"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5041233427","display_name":"Jaap van de Beek","orcid":"https://orcid.org/0000-0001-8647-436X"},"institutions":[{"id":"https://openalex.org/I4210159102","display_name":"Huawei Technologies (Sweden)","ror":"https://ror.org/0500fyd17","country_code":"SE","type":"company","lineage":["https://openalex.org/I2250955327","https://openalex.org/I4210159102"]}],"countries":["SE"],"is_corresponding":false,"raw_author_name":"Jaap van de Beek","raw_affiliation_strings":["Huawei Technologies Sweden AB, Kista, Sweden","Huawei Technologies Sweden, Skalholtsgatan 11, S-164 94 Kista, Sweden"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Huawei Technologies Sweden AB, Kista, Sweden","institution_ids":["https://openalex.org/I4210159102"]},{"raw_affiliation_string":"Huawei Technologies Sweden, Skalholtsgatan 11, S-164 94 Kista, Sweden","institution_ids":["https://openalex.org/I4210159102"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5088463526","display_name":"Berna Sayrac","orcid":null},"institutions":[{"id":"https://openalex.org/I19370010","display_name":"Orange (France)","ror":"https://ror.org/035j0tq82","country_code":"FR","type":"company","lineage":["https://openalex.org/I19370010"]}],"countries":["FR"],"is_corresponding":false,"raw_author_name":"Berna Sayrac","raw_affiliation_strings":["Orange Laboratories, Issy-Les-Moulineaux, France","Orange Labs, Issy-Les-Moulineaux, France"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Orange Laboratories, Issy-Les-Moulineaux, France","institution_ids":["https://openalex.org/I19370010"]},{"raw_affiliation_string":"Orange Labs, Issy-Les-Moulineaux, France","institution_ids":["https://openalex.org/I19370010"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5088646774","display_name":"S\u00e9bastien Grimoud","orcid":null},"institutions":[{"id":"https://openalex.org/I19370010","display_name":"Orange (France)","ror":"https://ror.org/035j0tq82","country_code":"FR","type":"company","lineage":["https://openalex.org/I19370010"]}],"countries":["FR"],"is_corresponding":false,"raw_author_name":"Sebastien Grimoud","raw_affiliation_strings":["Orange Laboratories, Issy-Les-Moulineaux, France","Orange Labs, Issy-Les-Moulineaux, France"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Orange Laboratories, Issy-Les-Moulineaux, France","institution_ids":["https://openalex.org/I19370010"]},{"raw_affiliation_string":"Orange Labs, Issy-Les-Moulineaux, France","institution_ids":["https://openalex.org/I19370010"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5002155643","display_name":"Jad Nasreddine","orcid":"https://orcid.org/0000-0002-1711-3007"},"institutions":[{"id":"https://openalex.org/I887968799","display_name":"RWTH Aachen University","ror":"https://ror.org/04xfq0f34","country_code":"DE","type":"education","lineage":["https://openalex.org/I887968799"]}],"countries":["DE"],"is_corresponding":false,"raw_author_name":"Jad Nasreddine","raw_affiliation_strings":["Institute for Networked Systems, RWTH Aachen University, Aachen, Germany","Institute for Networked Systems, RWTH Aachen University, Kackertstrasse 9, D-52072, Germany"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Institute for Networked Systems, RWTH Aachen University, Aachen, Germany","institution_ids":["https://openalex.org/I887968799"]},{"raw_affiliation_string":"Institute for Networked Systems, RWTH Aachen University, Kackertstrasse 9, D-52072, Germany","institution_ids":["https://openalex.org/I887968799"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5028886855","display_name":"Janne Riihij\u00e4rvi","orcid":"https://orcid.org/0000-0002-5989-3611"},"institutions":[{"id":"https://openalex.org/I887968799","display_name":"RWTH Aachen University","ror":"https://ror.org/04xfq0f34","country_code":"DE","type":"education","lineage":["https://openalex.org/I887968799"]}],"countries":["DE"],"is_corresponding":false,"raw_author_name":"Janne Riihijarvi","raw_affiliation_strings":["Institute for Networked Systems, RWTH Aachen University, Aachen, Germany","Institute for Networked Systems, RWTH Aachen University, Kackertstrasse 9, D-52072, Germany"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Institute for Networked Systems, RWTH Aachen University, Aachen, Germany","institution_ids":["https://openalex.org/I887968799"]},{"raw_affiliation_string":"Institute for Networked Systems, RWTH Aachen University, Kackertstrasse 9, D-52072, Germany","institution_ids":["https://openalex.org/I887968799"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5031180041","display_name":"Petri M\u00e4h\u00f6nen","orcid":"https://orcid.org/0000-0001-6934-8636"},"institutions":[{"id":"https://openalex.org/I887968799","display_name":"RWTH Aachen University","ror":"https://ror.org/04xfq0f34","country_code":"DE","type":"education","lineage":["https://openalex.org/I887968799"]}],"countries":["DE"],"is_corresponding":false,"raw_author_name":"Petri Mahonen","raw_affiliation_strings":["Institute for Networked Systems, RWTH Aachen University, Aachen, Germany","Institute for Networked Systems, RWTH Aachen University, Kackertstrasse 9, D-52072, Germany"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Institute for Networked Systems, RWTH Aachen University, Aachen, Germany","institution_ids":["https://openalex.org/I887968799"]},{"raw_affiliation_string":"Institute for Networked Systems, RWTH Aachen University, Kackertstrasse 9, D-52072, Germany","institution_ids":["https://openalex.org/I887968799"]}]}],"institutions":[],"countries_distinct_count":3,"institutions_distinct_count":3,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":6.2651,"has_fulltext":false,"cited_by_count":29,"citation_normalized_percentile":{"value":0.97422846,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":89,"max":99},"biblio":{"volume":null,"issue":null,"first_page":"172","last_page":"176"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10148","display_name":"Advanced MIMO Systems Optimization","score":0.9998999834060669,"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":0.9998999834060669,"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/T10575","display_name":"Wireless Communication Networks Research","score":0.9998000264167786,"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/T11158","display_name":"Wireless Networks and Protocols","score":0.9993000030517578,"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":0.7763980627059937},{"id":"https://openalex.org/keywords/femtocell","display_name":"Femtocell","score":0.7157541513442993},{"id":"https://openalex.org/keywords/block","display_name":"Block (permutation group theory)","score":0.59989333152771},{"id":"https://openalex.org/keywords/representation","display_name":"Representation (politics)","score":0.5461127161979675},{"id":"https://openalex.org/keywords/architecture","display_name":"Architecture","score":0.5450584888458252},{"id":"https://openalex.org/keywords/layer","display_name":"Layer (electronics)","score":0.542831301689148},{"id":"https://openalex.org/keywords/heterogeneous-network","display_name":"Heterogeneous network","score":0.5423761606216431},{"id":"https://openalex.org/keywords/radio-access-network","display_name":"Radio access network","score":0.5239465236663818},{"id":"https://openalex.org/keywords/relation","display_name":"Relation (database)","score":0.5140936970710754},{"id":"https://openalex.org/keywords/distributed-computing","display_name":"Distributed computing","score":0.47224801778793335},{"id":"https://openalex.org/keywords/computer-architecture","display_name":"Computer architecture","score":0.46772658824920654},{"id":"https://openalex.org/keywords/computer-network","display_name":"Computer network","score":0.42687469720840454},{"id":"https://openalex.org/keywords/minification","display_name":"Minification","score":0.41935163736343384},{"id":"https://openalex.org/keywords/network-architecture","display_name":"Network architecture","score":0.4159565567970276},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.18320757150650024},{"id":"https://openalex.org/keywords/data-mining","display_name":"Data mining","score":0.12395274639129639},{"id":"https://openalex.org/keywords/base-station","display_name":"Base station","score":0.08567136526107788}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7763980627059937},{"id":"https://openalex.org/C152504517","wikidata":"https://www.wikidata.org/wiki/Q572455","display_name":"Femtocell","level":3,"score":0.7157541513442993},{"id":"https://openalex.org/C2777210771","wikidata":"https://www.wikidata.org/wiki/Q4927124","display_name":"Block (permutation group theory)","level":2,"score":0.59989333152771},{"id":"https://openalex.org/C2776359362","wikidata":"https://www.wikidata.org/wiki/Q2145286","display_name":"Representation (politics)","level":3,"score":0.5461127161979675},{"id":"https://openalex.org/C123657996","wikidata":"https://www.wikidata.org/wiki/Q12271","display_name":"Architecture","level":2,"score":0.5450584888458252},{"id":"https://openalex.org/C2779227376","wikidata":"https://www.wikidata.org/wiki/Q6505497","display_name":"Layer (electronics)","level":2,"score":0.542831301689148},{"id":"https://openalex.org/C158207573","wikidata":"https://www.wikidata.org/wiki/Q5747224","display_name":"Heterogeneous network","level":4,"score":0.5423761606216431},{"id":"https://openalex.org/C106365562","wikidata":"https://www.wikidata.org/wiki/Q3078360","display_name":"Radio access network","level":4,"score":0.5239465236663818},{"id":"https://openalex.org/C25343380","wikidata":"https://www.wikidata.org/wiki/Q277521","display_name":"Relation (database)","level":2,"score":0.5140936970710754},{"id":"https://openalex.org/C120314980","wikidata":"https://www.wikidata.org/wiki/Q180634","display_name":"Distributed computing","level":1,"score":0.47224801778793335},{"id":"https://openalex.org/C118524514","wikidata":"https://www.wikidata.org/wiki/Q173212","display_name":"Computer architecture","level":1,"score":0.46772658824920654},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.42687469720840454},{"id":"https://openalex.org/C147764199","wikidata":"https://www.wikidata.org/wiki/Q6865248","display_name":"Minification","level":2,"score":0.41935163736343384},{"id":"https://openalex.org/C193415008","wikidata":"https://www.wikidata.org/wiki/Q639681","display_name":"Network architecture","level":2,"score":0.4159565567970276},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.18320757150650024},{"id":"https://openalex.org/C124101348","wikidata":"https://www.wikidata.org/wiki/Q172491","display_name":"Data mining","level":1,"score":0.12395274639129639},{"id":"https://openalex.org/C68649174","wikidata":"https://www.wikidata.org/wiki/Q1379116","display_name":"Base station","level":2,"score":0.08567136526107788},{"id":"https://openalex.org/C142362112","wikidata":"https://www.wikidata.org/wiki/Q735","display_name":"Art","level":0,"score":0.0},{"id":"https://openalex.org/C185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","level":0,"score":0.0},{"id":"https://openalex.org/C153349607","wikidata":"https://www.wikidata.org/wiki/Q36649","display_name":"Visual arts","level":1,"score":0.0},{"id":"https://openalex.org/C94625758","wikidata":"https://www.wikidata.org/wiki/Q7163","display_name":"Politics","level":2,"score":0.0},{"id":"https://openalex.org/C108037233","wikidata":"https://www.wikidata.org/wiki/Q11375","display_name":"Wireless network","level":3,"score":0.0},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.0},{"id":"https://openalex.org/C17744445","wikidata":"https://www.wikidata.org/wiki/Q36442","display_name":"Political science","level":0,"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/C178790620","wikidata":"https://www.wikidata.org/wiki/Q11351","display_name":"Organic chemistry","level":1,"score":0.0},{"id":"https://openalex.org/C199539241","wikidata":"https://www.wikidata.org/wiki/Q7748","display_name":"Law","level":1,"score":0.0},{"id":"https://openalex.org/C207029474","wikidata":"https://www.wikidata.org/wiki/Q384018","display_name":"Mobile station","level":3,"score":0.0},{"id":"https://openalex.org/C2524010","wikidata":"https://www.wikidata.org/wiki/Q8087","display_name":"Geometry","level":1,"score":0.0},{"id":"https://openalex.org/C555944384","wikidata":"https://www.wikidata.org/wiki/Q249","display_name":"Wireless","level":2,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1109/pimrc.2011.6139803","is_oa":false,"landing_page_url":"https://doi.org/10.1109/pimrc.2011.6139803","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2011 IEEE 22nd International Symposium on Personal, Indoor and Mobile Radio Communications","raw_type":"proceedings-article"},{"id":"pmh:oai:publications.rwth-aachen.de:124721","is_oa":false,"landing_page_url":"https://publications.rwth-aachen.de/record/124721","pdf_url":null,"source":{"id":"https://openalex.org/S4306401033","display_name":"RWTH Publications (RWTH Aachen)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I887968799","host_organization_name":"RWTH Aachen University","host_organization_lineage":["https://openalex.org/I887968799"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"2011 IEEE 22nd International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC) : 11 - 14 Sept. 2011, Toronto, Canada<br/>2011 IEEE 22nd International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC, Toronto, Canada, 2011-09-11 - 2011-09-14","raw_type":"info:eu-repo/semantics/conferenceObject"}],"best_oa_location":null,"sustainable_development_goals":[{"display_name":"Sustainable cities and communities","score":0.550000011920929,"id":"https://metadata.un.org/sdg/11"}],"awards":[],"funders":[{"id":"https://openalex.org/F4320320300","display_name":"European Commission","ror":"https://ror.org/00k4n6c32"}],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":4,"referenced_works":["https://openalex.org/W1540755540","https://openalex.org/W2153090463","https://openalex.org/W3023390280","https://openalex.org/W6682468974"],"related_works":["https://openalex.org/W1841004447","https://openalex.org/W117540911","https://openalex.org/W1987099914","https://openalex.org/W2139469462","https://openalex.org/W2032609484","https://openalex.org/W4388465529","https://openalex.org/W4387163083","https://openalex.org/W2883073109","https://openalex.org/W2289192411","https://openalex.org/W4206461488"],"abstract_inverted_index":{"In":[0,42,84],"this":[1],"contribution":[2],"a":[3,39],"layered":[4],"radio":[5],"environment":[6],"map":[7],"(REM)":[8],"architecture":[9,66,93],"is":[10,82],"designed":[11],"and":[12,29,76],"applied":[13],"in":[14,94],"the":[15,35,48,64,88,95],"framework":[16],"of":[17,38,47,63,78,90,97],"radio-access":[18],"network":[19,59],"optimization":[20],"for":[21],"heterogeneous":[22],"LTE":[23,69],"systems":[24],"that":[25],"comprise":[26],"both":[27],"macrocells":[28],"femtocells.":[30],"We":[31],"define":[32],"layer":[33],"as":[34],"hierarchical":[36],"representation":[37],"geographical":[40],"area.":[41],"each":[43],"layer,":[44],"different":[45,54],"instances":[46],"same":[49],"architectural":[50],"block":[51],"will":[52],"have":[53],"spatial/temporal":[55],"granularities,":[56],"associated":[57],"with":[58,101],"functionalities.":[60],"The":[61],"effectiveness":[62],"proposed":[65],"to":[67,104],"support":[68],"functions":[70,99],"like":[71],"automatic":[72],"neighbor":[73],"relation":[74],"(ANR)":[75],"minimization":[77],"drive":[79],"tests":[80],"(MDT)":[81],"discussed.":[83],"addition,":[85],"we":[86],"present":[87],"benefits":[89],"using":[91],"such":[92],"implementation":[96],"these":[98],"along":[100],"its":[102],"potential":[103],"bring":[105],"performance":[106],"gains.":[107]},"counts_by_year":[{"year":2025,"cited_by_count":1},{"year":2024,"cited_by_count":1},{"year":2020,"cited_by_count":1},{"year":2019,"cited_by_count":4},{"year":2018,"cited_by_count":4},{"year":2016,"cited_by_count":3},{"year":2015,"cited_by_count":1},{"year":2014,"cited_by_count":4},{"year":2013,"cited_by_count":2},{"year":2012,"cited_by_count":8}],"updated_date":"2026-07-29T14:22:42.915294","created_date":"2025-10-10T00:00:00"}