{"id":"https://openalex.org/W4410229163","doi":"https://doi.org/10.1109/wcnc61545.2025.10978252","title":"OFDM Demodulation Using Receive Signal Combining for Massive GW Satellite MIMO With Small Antennas","display_name":"OFDM Demodulation Using Receive Signal Combining for Massive GW Satellite MIMO With Small Antennas","publication_year":2025,"publication_date":"2025-03-24","ids":{"openalex":"https://openalex.org/W4410229163","doi":"https://doi.org/10.1109/wcnc61545.2025.10978252"},"language":"en","primary_location":{"id":"doi:10.1109/wcnc61545.2025.10978252","is_oa":false,"landing_page_url":"https://doi.org/10.1109/wcnc61545.2025.10978252","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2025 IEEE Wireless Communications and Networking Conference (WCNC)","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/A5026117186","display_name":"Koyo Tategami","orcid":"https://orcid.org/0009-0001-3795-3839"},"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":true,"raw_author_name":"Koyo Tategami","raw_affiliation_strings":["NTT Corporation,NTT Access Network Service Systems Laboratories,Kanagawa,Japan"],"affiliations":[{"raw_affiliation_string":"NTT Corporation,NTT Access Network Service Systems Laboratories,Kanagawa,Japan","institution_ids":["https://openalex.org/I2251713219"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5047567639","display_name":"Daisuke Goto","orcid":"https://orcid.org/0000-0003-2975-3738"},"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":"Daisuke Goto","raw_affiliation_strings":["NTT Corporation,NTT Access Network Service Systems Laboratories,Kanagawa,Japan"],"affiliations":[{"raw_affiliation_string":"NTT Corporation,NTT Access Network Service Systems Laboratories,Kanagawa,Japan","institution_ids":["https://openalex.org/I2251713219"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5041438425","display_name":"Kiyohiko Itokawa","orcid":"https://orcid.org/0009-0004-3264-3825"},"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":"Kiyohiko Itokawa","raw_affiliation_strings":["NTT Corporation,NTT Access Network Service Systems Laboratories,Kanagawa,Japan"],"affiliations":[{"raw_affiliation_string":"NTT Corporation,NTT Access Network Service Systems Laboratories,Kanagawa,Japan","institution_ids":["https://openalex.org/I2251713219"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5029436890","display_name":"Tomohiro Tokuyasu","orcid":null},"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":"Tomohiro Tokuyasu","raw_affiliation_strings":["NTT Corporation,NTT Access Network Service Systems Laboratories,Kanagawa,Japan"],"affiliations":[{"raw_affiliation_string":"NTT Corporation,NTT Access Network Service Systems Laboratories,Kanagawa,Japan","institution_ids":["https://openalex.org/I2251713219"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5102057019","display_name":"Fumihiro Yamashita","orcid":null},"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":"Fumihiro Yamashita","raw_affiliation_strings":["NTT Corporation,NTT Access Network Service Systems Laboratories,Kanagawa,Japan"],"affiliations":[{"raw_affiliation_string":"NTT Corporation,NTT Access Network Service Systems Laboratories,Kanagawa,Japan","institution_ids":["https://openalex.org/I2251713219"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":5,"corresponding_author_ids":["https://openalex.org/A5026117186"],"corresponding_institution_ids":["https://openalex.org/I2251713219"],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":{"value":0.042785,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":null,"issue":null,"first_page":"01","last_page":"06"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T12042","display_name":"Satellite Communication Systems","score":0.9994000196456909,"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"}},"topics":[{"id":"https://openalex.org/T12042","display_name":"Satellite Communication Systems","score":0.9994000196456909,"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":0.9894000291824341,"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":0.9829000234603882,"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/demodulation","display_name":"Demodulation","score":0.8155995607376099},{"id":"https://openalex.org/keywords/electronic-engineering","display_name":"Electronic engineering","score":0.5938526391983032},{"id":"https://openalex.org/keywords/signal","display_name":"SIGNAL (programming language)","score":0.561893880367279},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.5559367537498474},{"id":"https://openalex.org/keywords/mimo","display_name":"MIMO","score":0.5504589080810547},{"id":"https://openalex.org/keywords/orthogonal-frequency-division-multiplexing","display_name":"Orthogonal frequency-division multiplexing","score":0.5173467993736267},{"id":"https://openalex.org/keywords/satellite","display_name":"Satellite","score":0.46651068329811096},{"id":"https://openalex.org/keywords/communications-satellite","display_name":"Communications satellite","score":0.46448594331741333},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.38972073793411255},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.20867550373077393},{"id":"https://openalex.org/keywords/aerospace-engineering","display_name":"Aerospace engineering","score":0.08508649468421936},{"id":"https://openalex.org/keywords/channel","display_name":"Channel (broadcasting)","score":0.0611456036567688}],"concepts":[{"id":"https://openalex.org/C195251586","wikidata":"https://www.wikidata.org/wiki/Q1185939","display_name":"Demodulation","level":3,"score":0.8155995607376099},{"id":"https://openalex.org/C24326235","wikidata":"https://www.wikidata.org/wiki/Q126095","display_name":"Electronic engineering","level":1,"score":0.5938526391983032},{"id":"https://openalex.org/C2779843651","wikidata":"https://www.wikidata.org/wiki/Q7390335","display_name":"SIGNAL (programming language)","level":2,"score":0.561893880367279},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.5559367537498474},{"id":"https://openalex.org/C207987634","wikidata":"https://www.wikidata.org/wiki/Q176862","display_name":"MIMO","level":3,"score":0.5504589080810547},{"id":"https://openalex.org/C40409654","wikidata":"https://www.wikidata.org/wiki/Q375889","display_name":"Orthogonal frequency-division multiplexing","level":3,"score":0.5173467993736267},{"id":"https://openalex.org/C19269812","wikidata":"https://www.wikidata.org/wiki/Q26540","display_name":"Satellite","level":2,"score":0.46651068329811096},{"id":"https://openalex.org/C121308736","wikidata":"https://www.wikidata.org/wiki/Q149918","display_name":"Communications satellite","level":3,"score":0.46448594331741333},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.38972073793411255},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.20867550373077393},{"id":"https://openalex.org/C146978453","wikidata":"https://www.wikidata.org/wiki/Q3798668","display_name":"Aerospace engineering","level":1,"score":0.08508649468421936},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.0611456036567688},{"id":"https://openalex.org/C199360897","wikidata":"https://www.wikidata.org/wiki/Q9143","display_name":"Programming language","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/wcnc61545.2025.10978252","is_oa":false,"landing_page_url":"https://doi.org/10.1109/wcnc61545.2025.10978252","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2025 IEEE Wireless Communications and Networking Conference (WCNC)","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[{"score":0.6200000047683716,"display_name":"Affordable and clean energy","id":"https://metadata.un.org/sdg/7"}],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":12,"referenced_works":["https://openalex.org/W1667950888","https://openalex.org/W2061998039","https://openalex.org/W2115012107","https://openalex.org/W2133420037","https://openalex.org/W2135265416","https://openalex.org/W2155308272","https://openalex.org/W2942814026","https://openalex.org/W3007804894","https://openalex.org/W3089706104","https://openalex.org/W4280525945","https://openalex.org/W4323519588","https://openalex.org/W4404298978"],"related_works":["https://openalex.org/W1996543123","https://openalex.org/W4388516297","https://openalex.org/W2010761432","https://openalex.org/W4389302182","https://openalex.org/W4229074657","https://openalex.org/W2089955640","https://openalex.org/W1978322239","https://openalex.org/W2028190576","https://openalex.org/W4206958678","https://openalex.org/W2373343648"],"abstract_inverted_index":{"The":[0],"LEO":[1,20],"satellite":[2,55,75],"constellation":[3],"is":[4],"one":[5],"of":[6,145],"the":[7,33,94,105,118,137,142,153,164,167,186,196],"most":[8],"promising":[9],"non-terrestrial":[10],"network":[11],"(NTN)":[12],"systems":[13,21],"for":[14,54,108],"super":[15],"coverage":[16],"extension.":[17],"Since":[18],"future":[19],"will":[22],"be":[23,60],"required":[24,154],"to":[25,39,50,62,89,103,148,200],"provide":[26],"terrestrial":[27],"mobile":[28,56],"services":[29],"with":[30],"higher":[31],"than":[32,44],"current":[34,95],"data":[35],"rates,":[36],"they":[37,58],"need":[38],"accommodate":[40],"significantly":[41],"more":[42],"terminals":[43],"conventional":[45],"satellite-dedicated":[46],"communication":[47],"systems.":[48],"Moreover,":[49],"establish":[51],"robust":[52],"backhauls":[53],"services,":[57],"must":[59],"able":[61],"achieve":[63,90],"a":[64,72,84,128],"large":[65],"capacity":[66,198],"feeder":[67],"link.":[68],"We":[69,161],"previously":[70],"investigated":[71],"Massive":[73],"GW":[74,80],"MIMO":[76,146],"system":[77],"comprising":[78],"many":[79],"antennas":[81],"distributed":[82,206],"over":[83],"wide":[85],"area":[86],"that":[87,136,176],"cooperate":[88],"high":[91],"capacity.":[92],"In":[93],"work,":[96],"we":[97],"propose":[98],"an":[99],"OFDM":[100,120],"demodulation":[101,115,147],"scheme":[102,116,139],"reduce":[104,141],"computational":[106,143],"complexity":[107,144],"downlink":[109],"transmission":[110],"in":[111],"this":[112],"system.":[113],"Our":[114],"combines":[117,181,205],"received":[119,131],"signals":[121],"before":[122],"synchronization":[123],"and":[124,171,174,194],"demodulates":[125],"them":[126],"as":[127],"pseudo-multipath":[129],"channel":[130,197],"signal.":[132],"Simulation":[133],"results":[134],"show":[135],"proposed":[138],"can":[140],"about":[149,158,191],"20%":[150],"while":[151],"keeping":[152],"SNR":[155],"degradation":[156],"at":[157],"1\u20132":[159],"dB.":[160],"also":[162],"evaluated":[163],"relationship":[165],"between":[166],"signal":[168],"combining":[169,179,203],"method":[170],"CP":[172],"length":[173],"found":[175],"using":[177,201],"group":[178],"(which":[180,204],"nearby":[182],"receiving":[183,207],"antennas)":[184],"improves":[185],"frame":[187],"utilization":[188],"efficiency":[189],"by":[190],"1.12":[192],"times":[193],"increases":[195],"compared":[199],"scattered":[202],"antennas).":[208]},"counts_by_year":[],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}