{"id":"https://openalex.org/W4220913625","doi":"https://doi.org/10.1587/transcom.2021ebt0006","title":"PAPR Reduction of OFDM Signals Using Null Space in MIMO Channel for MIMO Amplify-and-Forward Relay Transmission","display_name":"PAPR Reduction of OFDM Signals Using Null Space in MIMO Channel for MIMO Amplify-and-Forward Relay Transmission","publication_year":2022,"publication_date":"2022-03-21","ids":{"openalex":"https://openalex.org/W4220913625","doi":"https://doi.org/10.1587/transcom.2021ebt0006"},"language":"en","primary_location":{"id":"doi:10.1587/transcom.2021ebt0006","is_oa":true,"landing_page_url":"https://doi.org/10.1587/transcom.2021ebt0006","pdf_url":"https://www.jstage.jst.go.jp/article/transcom/E105.B/9/E105.B_2021EBT0006/_pdf","source":{"id":"https://openalex.org/S2493627025","display_name":"IEICE Transactions on Communications","issn_l":"0916-8516","issn":["0916-8516","1745-1345"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4320800604","host_organization_name":"Institute of Electronics, Information and Communication Engineers","host_organization_lineage":["https://openalex.org/P4320800604"],"host_organization_lineage_names":["Institute of Electronics, Information and Communication Engineers"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEICE Transactions on Communications","raw_type":"journal-article"},"type":"article","indexed_in":["crossref"],"open_access":{"is_oa":true,"oa_status":"bronze","oa_url":"https://www.jstage.jst.go.jp/article/transcom/E105.B/9/E105.B_2021EBT0006/_pdf","any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5081991777","display_name":"Yuki Sekiguchi","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":"Yuki SEKIGUCHI","raw_affiliation_strings":["Graduate School of Science and Technology, Tokyo University of Science"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Graduate School of Science and Technology, Tokyo University of Science","institution_ids":["https://openalex.org/I161296585"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5075121038","display_name":"Nobuhide Nonaka","orcid":null},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Nobuhide NONAKA","raw_affiliation_strings":["NTT DOCOMO, INC"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"NTT DOCOMO, INC","institution_ids":[]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5101939730","display_name":"Kenichi Higuchi","orcid":"https://orcid.org/0009-0002-6299-8964"},"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":"Kenichi HIGUCHI","raw_affiliation_strings":["Graduate School of Science and Technology, Tokyo University of Science"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Graduate School of Science and Technology, Tokyo University of Science","institution_ids":["https://openalex.org/I161296585"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":0.3735,"has_fulltext":true,"cited_by_count":6,"citation_normalized_percentile":{"value":0.50930786,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":97},"biblio":{"volume":"E105.B","issue":"9","first_page":"1078","last_page":"1086"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11873","display_name":"PAPR reduction in OFDM","score":1.0,"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/T11873","display_name":"PAPR reduction in OFDM","score":1.0,"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/T11458","display_name":"Advanced Wireless Communication Technologies","score":0.9919999837875366,"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":0.9886000156402588,"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/mimo","display_name":"MIMO","score":0.7075578570365906},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.6462675333023071},{"id":"https://openalex.org/keywords/transmission","display_name":"Transmission (telecommunications)","score":0.5819568037986755},{"id":"https://openalex.org/keywords/orthogonal-frequency-division-multiplexing","display_name":"Orthogonal frequency-division multiplexing","score":0.5661119818687439},{"id":"https://openalex.org/keywords/mimo-ofdm","display_name":"MIMO-OFDM","score":0.554206132888794},{"id":"https://openalex.org/keywords/transmitter","display_name":"Transmitter","score":0.530045747756958},{"id":"https://openalex.org/keywords/channel","display_name":"Channel (broadcasting)","score":0.48389777541160583},{"id":"https://openalex.org/keywords/reduction","display_name":"Reduction (mathematics)","score":0.4712572395801544},{"id":"https://openalex.org/keywords/multi-user-mimo","display_name":"Multi-user MIMO","score":0.4583624303340912},{"id":"https://openalex.org/keywords/electronic-engineering","display_name":"Electronic engineering","score":0.4386560320854187},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.2684628367424011},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.19273754954338074},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.14697641134262085}],"concepts":[{"id":"https://openalex.org/C207987634","wikidata":"https://www.wikidata.org/wiki/Q176862","display_name":"MIMO","level":3,"score":0.7075578570365906},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6462675333023071},{"id":"https://openalex.org/C761482","wikidata":"https://www.wikidata.org/wiki/Q118093","display_name":"Transmission (telecommunications)","level":2,"score":0.5819568037986755},{"id":"https://openalex.org/C40409654","wikidata":"https://www.wikidata.org/wiki/Q375889","display_name":"Orthogonal frequency-division multiplexing","level":3,"score":0.5661119818687439},{"id":"https://openalex.org/C130946814","wikidata":"https://www.wikidata.org/wiki/Q5988271","display_name":"MIMO-OFDM","level":4,"score":0.554206132888794},{"id":"https://openalex.org/C47798520","wikidata":"https://www.wikidata.org/wiki/Q190157","display_name":"Transmitter","level":3,"score":0.530045747756958},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.48389777541160583},{"id":"https://openalex.org/C111335779","wikidata":"https://www.wikidata.org/wiki/Q3454686","display_name":"Reduction (mathematics)","level":2,"score":0.4712572395801544},{"id":"https://openalex.org/C91330434","wikidata":"https://www.wikidata.org/wiki/Q738298","display_name":"Multi-user MIMO","level":4,"score":0.4583624303340912},{"id":"https://openalex.org/C24326235","wikidata":"https://www.wikidata.org/wiki/Q126095","display_name":"Electronic engineering","level":1,"score":0.4386560320854187},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.2684628367424011},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.19273754954338074},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.14697641134262085},{"id":"https://openalex.org/C2524010","wikidata":"https://www.wikidata.org/wiki/Q8087","display_name":"Geometry","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1587/transcom.2021ebt0006","is_oa":true,"landing_page_url":"https://doi.org/10.1587/transcom.2021ebt0006","pdf_url":"https://www.jstage.jst.go.jp/article/transcom/E105.B/9/E105.B_2021EBT0006/_pdf","source":{"id":"https://openalex.org/S2493627025","display_name":"IEICE Transactions on Communications","issn_l":"0916-8516","issn":["0916-8516","1745-1345"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4320800604","host_organization_name":"Institute of Electronics, Information and Communication Engineers","host_organization_lineage":["https://openalex.org/P4320800604"],"host_organization_lineage_names":["Institute of Electronics, Information and Communication Engineers"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEICE Transactions on Communications","raw_type":"journal-article"}],"best_oa_location":{"id":"doi:10.1587/transcom.2021ebt0006","is_oa":true,"landing_page_url":"https://doi.org/10.1587/transcom.2021ebt0006","pdf_url":"https://www.jstage.jst.go.jp/article/transcom/E105.B/9/E105.B_2021EBT0006/_pdf","source":{"id":"https://openalex.org/S2493627025","display_name":"IEICE Transactions on Communications","issn_l":"0916-8516","issn":["0916-8516","1745-1345"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4320800604","host_organization_name":"Institute of Electronics, Information and Communication Engineers","host_organization_lineage":["https://openalex.org/P4320800604"],"host_organization_lineage_names":["Institute of Electronics, Information and Communication Engineers"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEICE Transactions on Communications","raw_type":"journal-article"},"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/7","display_name":"Affordable and clean energy","score":0.8299999833106995}],"awards":[],"funders":[],"has_content":{"pdf":true,"grobid_xml":true},"content_urls":{"pdf":"https://content.openalex.org/works/W4220913625.pdf","grobid_xml":"https://content.openalex.org/works/W4220913625.grobid-xml"},"referenced_works_count":28,"referenced_works":["https://openalex.org/W1967060944","https://openalex.org/W2016832686","https://openalex.org/W2049824694","https://openalex.org/W2063011342","https://openalex.org/W2069835456","https://openalex.org/W2077673378","https://openalex.org/W2084974231","https://openalex.org/W2098969228","https://openalex.org/W2100670409","https://openalex.org/W2102934991","https://openalex.org/W2105862752","https://openalex.org/W2106550864","https://openalex.org/W2112695547","https://openalex.org/W2115376318","https://openalex.org/W2125617233","https://openalex.org/W2146038629","https://openalex.org/W2147601077","https://openalex.org/W2149387264","https://openalex.org/W2152744465","https://openalex.org/W2162389197","https://openalex.org/W2323194974","https://openalex.org/W2427663465","https://openalex.org/W2884025866","https://openalex.org/W2915407703","https://openalex.org/W3012741024","https://openalex.org/W3107365522","https://openalex.org/W3130787649","https://openalex.org/W4200205092"],"related_works":["https://openalex.org/W2366188968","https://openalex.org/W2159772567","https://openalex.org/W2545343974","https://openalex.org/W1500439066","https://openalex.org/W2542194775","https://openalex.org/W2188042986","https://openalex.org/W2182661536","https://openalex.org/W2539022530","https://openalex.org/W2059045613","https://openalex.org/W2738743879"],"abstract_inverted_index":{"In":[0,84,95],"this":[1,85,172],"paper,":[2],"we":[3,87],"propose":[4],"applying":[5],"our":[6],"previously":[7],"reported":[8],"adaptive":[9,109],"peak-to-average":[10],"power":[11,76,82],"ratio":[12],"(PAPR)":[13],"reduction":[14,111,182,202,261],"method":[15,170,239],"using":[16],"null":[17,114,187,214],"space":[18,115,188,215],"in":[19,189,212],"a":[20,138],"multiple-input":[21],"multiple-output":[22],"(MIMO)":[23],"channel":[24,121,125,133,162,192,219],"for":[25,248],"orthogonal":[26],"frequency":[27],"division":[28],"multiplexing":[29],"(OFDM)":[30],"signals":[31],"to":[32,64,159,246,253],"the":[33,50,57,70,74,80,96,99,102,105,113,117,124,127,132,135,145,148,160,164,176,186,190,194,199,206,213,217,221,227,237,242,249,254,259,265],"downlink":[34],"MIMO":[35,120,161,191,218],"amplify-and-forward":[36],"(AF)":[37],"relaying":[38],"transmission.":[39],"Assuming":[40],"MIMO-OFDM":[41],"transmission,":[42],"mitigating":[43],"its":[44],"high":[45],"PAPR":[46,103,110,146,174,181,201,260],"not":[47],"only":[48,211],"at":[49,56,79,151,175,205,226,264],"base":[51],"station":[52,59],"(BS)":[53],"but":[54],"also":[55],"relay":[58],"(RS)":[60],"transmitters":[61],"is":[62,155,209,230],"essential":[63],"achieve":[65],"sufficient":[66],"coverage":[67],"enhancement":[68],"from":[69,258],"RSs":[71],"by":[72,180],"minimizing":[73],"transmission":[75],"backoff":[77],"levels":[78,257],"nonlinear":[81],"amplifier.":[83],"study,":[86],"assume":[88],"an":[89],"AF-type":[90,177],"RS":[91,130,136,153,178,195,207,222],"with":[92],"multiple":[93],"antennas.":[94],"proposed":[97,169,238],"method,":[98],"BS":[100,128,165],"suppresses":[101],"of":[104,116,140,147,216],"transmitted":[106,210],"signal":[107,150,203,262],"through":[108],"utilizing":[112],"integrated":[118],"overall":[119],"that":[122,184,236,247],"combines":[123],"between":[126,134,163,193,220],"and":[129,131,137,166,196,223],"set":[139],"user":[141],"equipment":[142],"(UE).":[143],"However,":[144],"received":[149],"each":[152],"antenna":[154],"increased":[156,173],"again":[157],"due":[158],"RS.":[167],"The":[168],"reduces":[171],"transmitter":[179,208],"processing":[183],"utilizes":[185],"UE.":[197],"Since":[198],"in-band":[200],"added":[204],"UE,":[224],"interference":[225,256],"UE":[228,266],"receiver":[229],"mitigated.":[231],"Computer":[232],"simulation":[233],"results":[234],"show":[235],"significantly":[240],"improves":[241],"PAPR-vs.-throughput":[243],"performance":[244],"compared":[245],"conventional":[250],"one":[251],"thanks":[252],"reduced":[255],"observed":[263],"receiver.":[267]},"counts_by_year":[{"year":2026,"cited_by_count":1},{"year":2024,"cited_by_count":3},{"year":2023,"cited_by_count":1},{"year":2022,"cited_by_count":1}],"updated_date":"2026-08-08T01:25:22.217667","created_date":"2025-10-10T00:00:00"}