{"id":"https://openalex.org/W3094865496","doi":"https://doi.org/10.1109/lwc.2020.3036463","title":"Ray Tracing Acceleration Using Total Variation Norm Minimization for Radio Map Simulation","display_name":"Ray Tracing Acceleration Using Total Variation Norm Minimization for Radio Map Simulation","publication_year":2020,"publication_date":"2020-11-06","ids":{"openalex":"https://openalex.org/W3094865496","doi":"https://doi.org/10.1109/lwc.2020.3036463","mag":"3094865496"},"language":"en","primary_location":{"id":"doi:10.1109/lwc.2020.3036463","is_oa":false,"landing_page_url":"https://doi.org/10.1109/lwc.2020.3036463","pdf_url":null,"source":{"id":"https://openalex.org/S2500830676","display_name":"IEEE Wireless Communications Letters","issn_l":"2162-2337","issn":["2162-2337","2162-2345"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["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 Wireless 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/A5076265818","display_name":"Norisato Suga","orcid":"https://orcid.org/0000-0001-5127-224X"},"institutions":[{"id":"https://openalex.org/I161296585","display_name":"Tokyo University of Science","ror":"https://ror.org/05sj3n476","country_code":"JP","type":"education","lineage":["https://openalex.org/I161296585"]}],"countries":["JP"],"is_corresponding":true,"raw_author_name":"Norisato Suga","raw_affiliation_strings":["Faculty of Engineering, Tokyo University of Science, Katushika-ku, Japan"],"affiliations":[{"raw_affiliation_string":"Faculty of Engineering, Tokyo University of Science, Katushika-ku, Japan","institution_ids":["https://openalex.org/I161296585"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5089078836","display_name":"Ryohei Sasaki","orcid":"https://orcid.org/0000-0003-2327-7910"},"institutions":[{"id":"https://openalex.org/I204291657","display_name":"Hosei University","ror":"https://ror.org/00bx6dj65","country_code":"JP","type":"education","lineage":["https://openalex.org/I204291657"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Ryohei Sasaki","raw_affiliation_strings":["Faculty of Computer and Information Science, Hosei University, Koganei-shi, Japan"],"affiliations":[{"raw_affiliation_string":"Faculty of Computer and Information Science, Hosei University, Koganei-shi, Japan","institution_ids":["https://openalex.org/I204291657"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5028916472","display_name":"Makoto OSAWA","orcid":null},"institutions":[{"id":"https://openalex.org/I161296585","display_name":"Tokyo University of Science","ror":"https://ror.org/05sj3n476","country_code":"JP","type":"education","lineage":["https://openalex.org/I161296585"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Makoto Osawa","raw_affiliation_strings":["Faculty of Engineering, Tokyo University of Science, Katushika-ku, Japan"],"affiliations":[{"raw_affiliation_string":"Faculty of Engineering, Tokyo University of Science, Katushika-ku, Japan","institution_ids":["https://openalex.org/I161296585"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5101060065","display_name":"Toshihiro Furukawa","orcid":null},"institutions":[{"id":"https://openalex.org/I161296585","display_name":"Tokyo University of Science","ror":"https://ror.org/05sj3n476","country_code":"JP","type":"education","lineage":["https://openalex.org/I161296585"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Toshihiro Furukawa","raw_affiliation_strings":["Faculty of Engineering, Tokyo University of Science, Katushika-ku, Japan"],"affiliations":[{"raw_affiliation_string":"Faculty of Engineering, Tokyo University of Science, Katushika-ku, Japan","institution_ids":["https://openalex.org/I161296585"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":4,"corresponding_author_ids":["https://openalex.org/A5076265818"],"corresponding_institution_ids":["https://openalex.org/I161296585"],"apc_list":null,"apc_paid":null,"fwci":0.9337,"has_fulltext":false,"cited_by_count":17,"citation_normalized_percentile":{"value":0.75212174,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":93,"max":98},"biblio":{"volume":"10","issue":"3","first_page":"522","last_page":"526"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10936","display_name":"Millimeter-Wave Propagation and Modeling","score":0.9998000264167786,"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/T10936","display_name":"Millimeter-Wave Propagation and Modeling","score":0.9998000264167786,"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/T10326","display_name":"Indoor and Outdoor Localization Technologies","score":0.9947999715805054,"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/T11234","display_name":"Precipitation Measurement and Analysis","score":0.9943000078201294,"subfield":{"id":"https://openalex.org/subfields/1902","display_name":"Atmospheric Science"},"field":{"id":"https://openalex.org/fields/19","display_name":"Earth and Planetary Sciences"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/interpolation","display_name":"Interpolation (computer graphics)","score":0.7497736215591431},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.6108763217926025},{"id":"https://openalex.org/keywords/acceleration","display_name":"Acceleration","score":0.4841802418231964},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.47892722487449646},{"id":"https://openalex.org/keywords/stairstep-interpolation","display_name":"Stairstep interpolation","score":0.4761500358581543},{"id":"https://openalex.org/keywords/norm","display_name":"Norm (philosophy)","score":0.41714373230934143},{"id":"https://openalex.org/keywords/multivariate-interpolation","display_name":"Multivariate interpolation","score":0.39949360489845276},{"id":"https://openalex.org/keywords/bilinear-interpolation","display_name":"Bilinear interpolation","score":0.37882572412490845},{"id":"https://openalex.org/keywords/computer-vision","display_name":"Computer vision","score":0.28934305906295776},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.10936453938484192},{"id":"https://openalex.org/keywords/image","display_name":"Image (mathematics)","score":0.0712641179561615}],"concepts":[{"id":"https://openalex.org/C137800194","wikidata":"https://www.wikidata.org/wiki/Q11713455","display_name":"Interpolation (computer graphics)","level":3,"score":0.7497736215591431},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6108763217926025},{"id":"https://openalex.org/C117896860","wikidata":"https://www.wikidata.org/wiki/Q11376","display_name":"Acceleration","level":2,"score":0.4841802418231964},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.47892722487449646},{"id":"https://openalex.org/C119768884","wikidata":"https://www.wikidata.org/wiki/Q7597108","display_name":"Stairstep interpolation","level":4,"score":0.4761500358581543},{"id":"https://openalex.org/C191795146","wikidata":"https://www.wikidata.org/wiki/Q3878446","display_name":"Norm (philosophy)","level":2,"score":0.41714373230934143},{"id":"https://openalex.org/C203332170","wikidata":"https://www.wikidata.org/wiki/Q6334079","display_name":"Multivariate interpolation","level":3,"score":0.39949360489845276},{"id":"https://openalex.org/C205203396","wikidata":"https://www.wikidata.org/wiki/Q612143","display_name":"Bilinear interpolation","level":2,"score":0.37882572412490845},{"id":"https://openalex.org/C31972630","wikidata":"https://www.wikidata.org/wiki/Q844240","display_name":"Computer vision","level":1,"score":0.28934305906295776},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.10936453938484192},{"id":"https://openalex.org/C115961682","wikidata":"https://www.wikidata.org/wiki/Q860623","display_name":"Image (mathematics)","level":2,"score":0.0712641179561615},{"id":"https://openalex.org/C199539241","wikidata":"https://www.wikidata.org/wiki/Q7748","display_name":"Law","level":1,"score":0.0},{"id":"https://openalex.org/C74650414","wikidata":"https://www.wikidata.org/wiki/Q11397","display_name":"Classical mechanics","level":1,"score":0.0},{"id":"https://openalex.org/C17744445","wikidata":"https://www.wikidata.org/wiki/Q36442","display_name":"Political science","level":0,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/lwc.2020.3036463","is_oa":false,"landing_page_url":"https://doi.org/10.1109/lwc.2020.3036463","pdf_url":null,"source":{"id":"https://openalex.org/S2500830676","display_name":"IEEE Wireless Communications Letters","issn_l":"2162-2337","issn":["2162-2337","2162-2345"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["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 Wireless Communications Letters","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":14,"referenced_works":["https://openalex.org/W25664821","https://openalex.org/W1520511539","https://openalex.org/W1971563238","https://openalex.org/W2005089986","https://openalex.org/W2040035439","https://openalex.org/W2091484400","https://openalex.org/W2142058898","https://openalex.org/W2148062657","https://openalex.org/W2155464752","https://openalex.org/W2415065574","https://openalex.org/W2605344455","https://openalex.org/W2765589278","https://openalex.org/W2770812607","https://openalex.org/W6745965156"],"related_works":["https://openalex.org/W1519931592","https://openalex.org/W2101207231","https://openalex.org/W2037074416","https://openalex.org/W2036543038","https://openalex.org/W2071815454","https://openalex.org/W2355145174","https://openalex.org/W2265893536","https://openalex.org/W2392096499","https://openalex.org/W4293094256","https://openalex.org/W2162238560"],"abstract_inverted_index":{"In":[0],"this":[1],"letter,":[2],"a":[3,22,65],"ray":[4,43],"tracing":[5],"(RT)":[6],"acceleration":[7,54],"method":[8,69,126],"based":[9],"on":[10,48],"the":[11,32,39,71,78,85,88,106,120,124],"total":[12],"variation":[13],"norm":[14],"minimization":[15],"(TVNM)":[16],"scheme":[17],"is":[18,21,34,64],"presented.":[19],"RT":[20,116,139],"general":[23],"tool":[24],"used":[25],"to":[26,94,104],"analyze":[27],"wireless":[28],"communication":[29],"environments.":[30],"However,":[31],"simulation":[33,113,140],"time":[35],"consuming":[36],"because":[37],"of":[38,42,73,87,109,123,131],"large":[40],"number":[41],"calculations.":[44],"This":[45],"letter":[46],"focuses":[47],"radio":[49,57,89,133],"map":[50,58,90,134],"interpolation":[51,68,107,121,135,147],"as":[52,84],"an":[53,145],"approach.":[55],"For":[56],"interpolation,":[59],"we":[60,99],"adopt":[61],"TVNM,":[62],"which":[63],"representative":[66],"edge-preserving":[67],"in":[70],"field":[72],"image":[74],"processing.":[75],"We":[76],"regard":[77],"non-line-of-sight":[79],"and":[80,91,137],"line-of-sight":[81],"region":[82],"boundary":[83],"edge":[86],"use":[92],"TVNM":[93],"achieve":[95],"accurate":[96],"interpolation.":[97],"Furthermore,":[98],"consider":[100],"known":[101],"position":[102],"selection":[103],"enhance":[105],"accuracy":[108,122],"TVNM.":[110],"A":[111],"computational":[112],"using":[114],"commercial":[115],"software":[117],"revealed":[118],"that":[119,138],"proposed":[125],"was":[127],"better":[128],"than":[129],"those":[130],"other":[132],"methods":[136],"can":[141],"be":[142],"accelerated":[143],"with":[144],"acceptable":[146],"error.":[148]},"counts_by_year":[{"year":2025,"cited_by_count":4},{"year":2024,"cited_by_count":4},{"year":2023,"cited_by_count":5},{"year":2022,"cited_by_count":2},{"year":2021,"cited_by_count":2}],"updated_date":"2026-03-27T05:58:40.876381","created_date":"2025-10-10T00:00:00"}