{"id":"https://openalex.org/W2113252585","doi":"https://doi.org/10.1109/tcom.1979.1094355","title":"Characteristics of a High Capacity 16 QAM Digital Radio System in Multipath Fading","display_name":"Characteristics of a High Capacity 16 QAM Digital Radio System in Multipath Fading","publication_year":1979,"publication_date":"1979-12-01","ids":{"openalex":"https://openalex.org/W2113252585","doi":"https://doi.org/10.1109/tcom.1979.1094355","mag":"2113252585"},"language":"en","primary_location":{"id":"doi:10.1109/tcom.1979.1094355","doi":"https://doi.org/10.1109/tcom.1979.1094355","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tcom.1979.1094355","pdf_url":null,"source":{"id":"https://openalex.org/S4210170832","display_name":"IRE Transactions on Communications Systems","issn_l":"0096-2244","issn":["0096-2244","2162-2132"],"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"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 Transactions on Communications","raw_type":"journal-article"},"volume":null,"type":"article","is_traditional":true,"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/A5110161565","display_name":"Shozo Komaki","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I2251713219","display_name":"NTT (Japan)","ror":"https://ror.org/00berct97","country_code":"JP","type":"company","lineage":["https://openalex.org/I2251713219"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"S. Komaki","raw_affiliation_strings":["Radio Transmission Section, Yokosuka Electrical Communication Laboratory, Nippon Telegraph and Telephone Public Corporation, Kanagawa, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Radio Transmission Section, Yokosuka Electrical Communication Laboratory, Nippon Telegraph and Telephone Public Corporation, Kanagawa, Japan","institution_ids":["https://openalex.org/I2251713219"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5013813125","display_name":"Izumi Horikawa","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I2251713219","display_name":"NTT (Japan)","ror":"https://ror.org/00berct97","country_code":"JP","type":"company","lineage":["https://openalex.org/I2251713219"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"I. Horikawa","raw_affiliation_strings":["Radio Transmission Section, Yokosuka Electrical Communication Laboratory, Nippon Telegraph and Telephone Public Corporation, Kanagawa, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Radio Transmission Section, Yokosuka Electrical Communication Laboratory, Nippon Telegraph and Telephone Public Corporation, Kanagawa, Japan","institution_ids":["https://openalex.org/I2251713219"]}]},{"author_position":"middle","author":{"id":null,"display_name":"K. Morita","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I2251713219","display_name":"NTT (Japan)","ror":"https://ror.org/00berct97","country_code":"JP","type":"company","lineage":["https://openalex.org/I2251713219"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"K. Morita","raw_affiliation_strings":["Radio Transmission Section, Yokosuka Electrical Communication Laboratory, Nippon Telegraph and Telephone Public Corporation, Kanagawa, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Radio Transmission Section, Yokosuka Electrical Communication Laboratory, Nippon Telegraph and Telephone Public Corporation, Kanagawa, Japan","institution_ids":["https://openalex.org/I2251713219"]}]},{"author_position":"last","author":{"id":null,"display_name":"Y. Okamoto","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I2251713219","display_name":"NTT (Japan)","ror":"https://ror.org/00berct97","country_code":"JP","type":"company","lineage":["https://openalex.org/I2251713219"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Y. Okamoto","raw_affiliation_strings":["Radio Transmission Section, Yokosuka Electrical Communication Laboratory, Nippon Telegraph and Telephone Public Corporation, Kanagawa, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Radio Transmission Section, Yokosuka Electrical Communication Laboratory, Nippon Telegraph and Telephone Public Corporation, Kanagawa, Japan","institution_ids":["https://openalex.org/I2251713219"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":["https://openalex.org/I2251713219"],"apc_list":null,"apc_paid":null,"fwci":5.169,"has_fulltext":false,"cited_by_count":34,"citation_normalized_percentile":{"value":0.95277794,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":87,"max":92},"biblio":{"volume":"27","issue":"12","first_page":"1854","last_page":"1861"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10125","display_name":"Advanced Wireless Communication Techniques","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"}},"topics":[{"id":"https://openalex.org/T10125","display_name":"Advanced Wireless Communication Techniques","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/T10575","display_name":"Wireless Communication Networks Research","score":0.00039999998989515007,"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/T13905","display_name":"Telecommunications and Broadcasting Technologies","score":9.999999747378752e-05,"subfield":{"id":"https://openalex.org/subfields/2214","display_name":"Media Technology"},"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/multipath-fading","display_name":"multipath fading","score":0.9229999780654907},{"id":"https://openalex.org/keywords/16-qam","display_name":"16-QAM","score":0.9649999737739563},{"id":"https://openalex.org/keywords/digital-radio","display_name":"digital radio","score":0.7770000100135803},{"id":"https://openalex.org/keywords/outage-probability","display_name":"outage probability","score":0.8360000252723694},{"id":"https://openalex.org/keywords/dynamic-equalization","display_name":"dynamic equalization","score":0.8700000047683716},{"id":"https://openalex.org/keywords/delay-spread","display_name":"delay spread","score":0.9049999713897705}],"concepts":[{"id":"https://openalex.org/C161218011","wikidata":"https://www.wikidata.org/wiki/Q11827794","display_name":"Multipath propagation","level":3,"score":0.8382889628410339},{"id":"https://openalex.org/C81978471","wikidata":"https://www.wikidata.org/wiki/Q1196572","display_name":"Fading","level":3,"score":0.8155980110168457},{"id":"https://openalex.org/C507880516","wikidata":"https://www.wikidata.org/wiki/Q1257510","display_name":"Digital radio","level":2,"score":0.5596844553947449},{"id":"https://openalex.org/C49456836","wikidata":"https://www.wikidata.org/wiki/Q666814","display_name":"Delay spread","level":4,"score":0.5507053136825562},{"id":"https://openalex.org/C24326235","wikidata":"https://www.wikidata.org/wiki/Q126095","display_name":"Electronic engineering","level":1,"score":0.5500659942626953},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.5320696830749512},{"id":"https://openalex.org/C59030546","wikidata":"https://www.wikidata.org/wiki/Q7265371","display_name":"QAM","level":5,"score":0.5138602256774902},{"id":"https://openalex.org/C198746922","wikidata":"https://www.wikidata.org/wiki/Q1230593","display_name":"Diversity scheme","level":4,"score":0.46085184812545776},{"id":"https://openalex.org/C60069766","wikidata":"https://www.wikidata.org/wiki/Q357054","display_name":"Antenna diversity","level":3,"score":0.4120529890060425},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.37363141775131226},{"id":"https://openalex.org/C32409245","wikidata":"https://www.wikidata.org/wiki/Q749753","display_name":"Quadrature amplitude modulation","level":4,"score":0.32437461614608765},{"id":"https://openalex.org/C56296756","wikidata":"https://www.wikidata.org/wiki/Q840922","display_name":"Bit error rate","level":3,"score":0.2462904155254364},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.2235698699951172},{"id":"https://openalex.org/C555944384","wikidata":"https://www.wikidata.org/wiki/Q249","display_name":"Wireless","level":2,"score":0.09619909524917603},{"id":"https://openalex.org/C57273362","wikidata":"https://www.wikidata.org/wiki/Q576722","display_name":"Decoding methods","level":2,"score":0.07032510638237},{"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/tcom.1979.1094355","doi":"https://doi.org/10.1109/tcom.1979.1094355","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tcom.1979.1094355","pdf_url":null,"source":{"id":"https://openalex.org/S4210170832","display_name":"IRE Transactions on Communications Systems","issn_l":"0096-2244","issn":["0096-2244","2162-2132"],"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"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 Transactions on Communications","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[{"display_name":"Industry, innovation and infrastructure","score":0.428600013256073,"id":"https://metadata.un.org/sdg/9"}],"study_designs":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":2,"referenced_works":["https://openalex.org/W2004588818","https://openalex.org/W2128921349"],"related_works":["https://openalex.org/W3163245717","https://openalex.org/W2090671900","https://openalex.org/W1571113719","https://openalex.org/W2078064067","https://openalex.org/W2115085824","https://openalex.org/W7061664488","https://openalex.org/W2099688764","https://openalex.org/W2188407141","https://openalex.org/W2099074132","https://openalex.org/W2008268832"],"abstract_inverted_index":{"Multipath":[0],"fading":[1,64],"effects":[2],"on":[3],"a":[4,98],"200":[5],"Mbit/s":[6],"16":[7],"QAM":[8],"digital":[9],"radio":[10],"system":[11],"have":[12],"been":[13],"experimentally":[14],"investigated.":[15],"It":[16],"was":[17,79,92],"found":[18],"that":[19],"the":[20,29,36,47,71,75],"outage":[21],"probability":[22],"can":[23],"be":[24],"accurately":[25],"estimated":[26],"using":[27],"only":[28],"in-band":[30],"frequency":[31],"response":[32],"without":[33],"knowledge":[34],"of":[35,73,89],"delay":[37,76],"difference":[38],"between":[39],"two":[40],"incident":[41],"waves.":[42],"New":[43],"methods":[44],"to":[45,61],"evaluate":[46],"improvement":[48],"factors":[49],"for":[50],"both":[51],"space":[52],"diversity":[53],"reception":[54],"and":[55,97],"dynamic":[56],"equalizing,":[57],"which":[58],"are":[59],"required":[60],"combat":[62],"multipath":[63],"effects,":[65],"were":[66],"also":[67],"proposed.":[68],"In":[69],"particular,":[70],"significance":[72],"noticing":[74],"dispersion":[77],"sign":[78],"pointed":[80],"out":[81],"when":[82],"attaining":[83],"sufficient":[84],"equalization":[85],"effect.":[86],"The":[87],"validity":[88],"these":[90],"evaluations":[91],"confirmed":[93],"by":[94],"simulation":[95],"experiments":[96],"field":[99],"trial.":[100]},"counts_by_year":[{"year":2021,"cited_by_count":1}],"updated_date":"2026-11-04T10:54:05.112534","created_date":"2016-06-24T00:00:00"}