{"id":"https://openalex.org/W2150706714","doi":"https://doi.org/10.1109/pimrc.2003.1259142","title":"On the effects of platform positional instability on a UMTS system served by HAPS","display_name":"On the effects of platform positional instability on a UMTS system served by HAPS","publication_year":2004,"publication_date":"2004-06-21","ids":{"openalex":"https://openalex.org/W2150706714","doi":"https://doi.org/10.1109/pimrc.2003.1259142","mag":"2150706714"},"language":"en","primary_location":{"id":"doi:10.1109/pimrc.2003.1259142","is_oa":false,"landing_page_url":"https://doi.org/10.1109/pimrc.2003.1259142","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"14th IEEE Proceedings on Personal, Indoor and Mobile Radio Communications, 2003. PIMRC 2003.","raw_type":"proceedings-article"},"type":"conference-paper","indexed_in":["crossref"],"open_access":{"is_oa":true,"oa_status":"green","oa_url":"http://doi.org/10.1109/PIMRC.2003.1259142","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5057235379","display_name":"D.I. Axiotis","orcid":null},"institutions":[{"id":"https://openalex.org/I174458059","display_name":"National Technical University of Athens","ror":"https://ror.org/03cx6bg69","country_code":"GR","type":"education","lineage":["https://openalex.org/I174458059"]}],"countries":["GR"],"is_corresponding":false,"raw_author_name":"D.I. Axiotis","raw_affiliation_strings":["Telecommunications Laboratory, National and Technical University of Athens, Greece"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Telecommunications Laboratory, National and Technical University of Athens, Greece","institution_ids":["https://openalex.org/I174458059"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5108505865","display_name":"M. Theologou","orcid":null},"institutions":[{"id":"https://openalex.org/I174458059","display_name":"National Technical University of Athens","ror":"https://ror.org/03cx6bg69","country_code":"GR","type":"education","lineage":["https://openalex.org/I174458059"]}],"countries":["GR"],"is_corresponding":false,"raw_author_name":"M.E. Theologou","raw_affiliation_strings":["Telecommunications Laboratory, National and Technical University of Athens, Greece"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Telecommunications Laboratory, National and Technical University of Athens, Greece","institution_ids":["https://openalex.org/I174458059"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":["https://openalex.org/I174458059"],"apc_list":null,"apc_paid":null,"fwci":null,"has_fulltext":false,"cited_by_count":2,"citation_normalized_percentile":null,"cited_by_percentile_year":null,"biblio":{"volume":null,"issue":null,"first_page":"2368","last_page":"2372"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T12146","display_name":"Power Line Communications and Noise","score":0.9819999933242798,"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/T12146","display_name":"Power Line Communications and Noise","score":0.9819999933242798,"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/T12042","display_name":"Satellite Communication Systems","score":0.9575999975204468,"subfield":{"id":"https://openalex.org/subfields/2202","display_name":"Aerospace 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":0.9528999924659729,"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/umts-frequency-bands","display_name":"UMTS frequency bands","score":0.7739048004150391},{"id":"https://openalex.org/keywords/instability","display_name":"Instability","score":0.7218577265739441},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.5249668955802917},{"id":"https://openalex.org/keywords/propulsion","display_name":"Propulsion","score":0.5144784450531006},{"id":"https://openalex.org/keywords/mobile-telephony","display_name":"Mobile telephony","score":0.46150022745132446},{"id":"https://openalex.org/keywords/environmental-science","display_name":"Environmental science","score":0.41459861397743225},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.2925412654876709},{"id":"https://openalex.org/keywords/aerospace-engineering","display_name":"Aerospace engineering","score":0.27014991641044617},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.22039440274238586},{"id":"https://openalex.org/keywords/mobile-radio","display_name":"Mobile radio","score":0.19023138284683228},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.1163361668586731}],"concepts":[{"id":"https://openalex.org/C101618186","wikidata":"https://www.wikidata.org/wiki/Q3633928","display_name":"UMTS frequency bands","level":2,"score":0.7739048004150391},{"id":"https://openalex.org/C207821765","wikidata":"https://www.wikidata.org/wiki/Q405372","display_name":"Instability","level":2,"score":0.7218577265739441},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.5249668955802917},{"id":"https://openalex.org/C1034443","wikidata":"https://www.wikidata.org/wiki/Q2583685","display_name":"Propulsion","level":2,"score":0.5144784450531006},{"id":"https://openalex.org/C95491727","wikidata":"https://www.wikidata.org/wiki/Q992968","display_name":"Mobile telephony","level":3,"score":0.46150022745132446},{"id":"https://openalex.org/C39432304","wikidata":"https://www.wikidata.org/wiki/Q188847","display_name":"Environmental science","level":0,"score":0.41459861397743225},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.2925412654876709},{"id":"https://openalex.org/C146978453","wikidata":"https://www.wikidata.org/wiki/Q3798668","display_name":"Aerospace engineering","level":1,"score":0.27014991641044617},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.22039440274238586},{"id":"https://openalex.org/C2781307350","wikidata":"https://www.wikidata.org/wiki/Q6887221","display_name":"Mobile radio","level":2,"score":0.19023138284683228},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.1163361668586731},{"id":"https://openalex.org/C57879066","wikidata":"https://www.wikidata.org/wiki/Q41217","display_name":"Mechanics","level":1,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1109/pimrc.2003.1259142","is_oa":false,"landing_page_url":"https://doi.org/10.1109/pimrc.2003.1259142","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"14th IEEE Proceedings on Personal, Indoor and Mobile Radio Communications, 2003. PIMRC 2003.","raw_type":"proceedings-article"},{"id":"pmh:oai:dspace.lib.ntua.gr:123456789/30928","is_oa":true,"landing_page_url":"http://doi.org/10.1109/PIMRC.2003.1259142","pdf_url":null,"source":{"id":"https://openalex.org/S4377196837","display_name":"DSpace - NTUA (National Technical University of Athens)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I174458059","host_organization_name":"National Technical University of Athens","host_organization_lineage":["https://openalex.org/I174458059"],"host_organization_lineage_names":[],"type":"repository"},"license":"other-oa","license_id":"https://openalex.org/licenses/other-oa","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC","raw_type":"info:eu-repo/semantics/conferenceObject"}],"best_oa_location":{"id":"pmh:oai:dspace.lib.ntua.gr:123456789/30928","is_oa":true,"landing_page_url":"http://doi.org/10.1109/PIMRC.2003.1259142","pdf_url":null,"source":{"id":"https://openalex.org/S4377196837","display_name":"DSpace - NTUA (National Technical University of Athens)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I174458059","host_organization_name":"National Technical University of Athens","host_organization_lineage":["https://openalex.org/I174458059"],"host_organization_lineage_names":[],"type":"repository"},"license":"other-oa","license_id":"https://openalex.org/licenses/other-oa","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC","raw_type":"info:eu-repo/semantics/conferenceObject"},"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/7","score":0.6299999952316284,"display_name":"Affordable and clean energy"}],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":0,"referenced_works":[],"related_works":["https://openalex.org/W2330816391","https://openalex.org/W2134259195","https://openalex.org/W1509663808","https://openalex.org/W1575121556","https://openalex.org/W1913073618","https://openalex.org/W1908492833","https://openalex.org/W2128117275","https://openalex.org/W2316805292","https://openalex.org/W1479721463","https://openalex.org/W2129945940"],"abstract_inverted_index":{"High":[0],"altitude":[1,67],"platform":[2,26,89],"stations":[3],"(HAPS)":[4],"are":[5],"a":[6,38,52,80,83,96],"new,":[7],"promising":[8],"means":[9],"of":[10,17,21,40,43,51,62,68,79,105,110],"providing":[11],"International":[12],"Mobile":[13,54],"Telecommunications":[14,55],"(IMT-2000).":[15],"One":[16],"the":[18,22,25,41,47,76,103,108],"potential":[19],"problems":[20],"system":[23,48,98,114],"is":[24,116],"positional":[27,44,77],"instability":[28,45,78,90,106],"due":[29],"to":[30,74],"stratospheric":[31,63],"winds.":[32],"In":[33],"this":[34],"paper,":[35],"we":[36],"present":[37],"study":[39],"effect":[42,104],"on":[46,107],"level":[49,99],"performance":[50],"Universal":[53],"System":[56],"(UMTS)":[57],"served":[58],"by":[59],"HAPS.":[60],"Measurements":[61],"winds":[64],"at":[65],"an":[66],"21":[69],"Km":[70],"have":[71],"been":[72],"used":[73],"simulate":[75],"HAPS":[81],"employing":[82],"propulsion":[84],"station":[85],"keeping":[86],"mechanism.":[87],"The":[88],"model":[91],"obtained":[92],"gives":[93],"input":[94],"into":[95],"UMTS":[97],"dynamic":[100],"simulator":[101],"and":[102,113],"rate":[109],"soft":[111],"handovers":[112],"capacity":[115],"examined.":[117]},"counts_by_year":[],"updated_date":"2026-07-14T23:27:15.235271","created_date":"2025-10-10T00:00:00"}