{"id":"https://openalex.org/W4212782592","doi":"https://doi.org/10.1587/transcom.2021ebt0007","title":"Performance Improvement of Radio-Wave Encrypted MIMO Communications Using Average LLR Clipping","display_name":"Performance Improvement of Radio-Wave Encrypted MIMO Communications Using Average LLR Clipping","publication_year":2022,"publication_date":"2022-02-14","ids":{"openalex":"https://openalex.org/W4212782592","doi":"https://doi.org/10.1587/transcom.2021ebt0007"},"language":"en","primary_location":{"id":"doi:10.1587/transcom.2021ebt0007","is_oa":true,"landing_page_url":"https://doi.org/10.1587/transcom.2021ebt0007","pdf_url":"https://www.jstage.jst.go.jp/article/transcom/E105.B/8/E105.B_2021EBT0007/_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/8/E105.B_2021EBT0007/_pdf","any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5001428114","display_name":"Mamoru Okumura","orcid":null},"institutions":[{"id":"https://openalex.org/I197274945","display_name":"Nagoya Institute of Technology","ror":"https://ror.org/055yf1005","country_code":"JP","type":"education","lineage":["https://openalex.org/I197274945"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Mamoru OKUMURA","raw_affiliation_strings":["Department of Computer Science and Engineering, Graduate School of Engineering, Nagoya Institute of Technology"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Computer Science and Engineering, Graduate School of Engineering, Nagoya Institute of Technology","institution_ids":["https://openalex.org/I197274945"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5112896309","display_name":"Keisuke Asano","orcid":null},"institutions":[{"id":"https://openalex.org/I197274945","display_name":"Nagoya Institute of Technology","ror":"https://ror.org/055yf1005","country_code":"JP","type":"education","lineage":["https://openalex.org/I197274945"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Keisuke ASANO","raw_affiliation_strings":["Department of Computer Science and Engineering, Graduate School of Engineering, Nagoya Institute of Technology"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Computer Science and Engineering, Graduate School of Engineering, Nagoya Institute of Technology","institution_ids":["https://openalex.org/I197274945"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5029368588","display_name":"Takumi Abe","orcid":null},"institutions":[{"id":"https://openalex.org/I197274945","display_name":"Nagoya Institute of Technology","ror":"https://ror.org/055yf1005","country_code":"JP","type":"education","lineage":["https://openalex.org/I197274945"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Takumi ABE","raw_affiliation_strings":["Department of Computer Science and Engineering, Graduate School of Engineering, Nagoya Institute of Technology"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Computer Science and Engineering, Graduate School of Engineering, Nagoya Institute of Technology","institution_ids":["https://openalex.org/I197274945"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5007597460","display_name":"Eiji Okamoto","orcid":"https://orcid.org/0000-0001-7834-1639"},"institutions":[{"id":"https://openalex.org/I197274945","display_name":"Nagoya Institute of Technology","ror":"https://ror.org/055yf1005","country_code":"JP","type":"education","lineage":["https://openalex.org/I197274945"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Eiji OKAMOTO","raw_affiliation_strings":["Department of Computer Science and Engineering, Graduate School of Engineering, Nagoya Institute of Technology"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Computer Science and Engineering, Graduate School of Engineering, Nagoya Institute of Technology","institution_ids":["https://openalex.org/I197274945"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5044308914","display_name":"T. Yamamoto","orcid":"https://orcid.org/0000-0002-1132-9763"},"institutions":[{"id":"https://openalex.org/I1283155146","display_name":"Panasonic (Japan)","ror":"https://ror.org/011tm7n37","country_code":"JP","type":"company","lineage":["https://openalex.org/I1283155146"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Tetsuya YAMAMOTO","raw_affiliation_strings":["Digital & AI Technology Center, Technology Division, Panasonic Corporation"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Digital & AI Technology Center, Technology Division, Panasonic Corporation","institution_ids":["https://openalex.org/I1283155146"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":5,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":0.277,"has_fulltext":true,"cited_by_count":3,"citation_normalized_percentile":{"value":0.51254152,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":90,"max":95},"biblio":{"volume":"E105.B","issue":"8","first_page":"931","last_page":"943"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10964","display_name":"Wireless Communication Security Techniques","score":0.9998999834060669,"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/T10964","display_name":"Wireless Communication Security Techniques","score":0.9998999834060669,"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/T11017","display_name":"Chaos-based Image/Signal Encryption","score":0.9998999834060669,"subfield":{"id":"https://openalex.org/subfields/1707","display_name":"Computer Vision and Pattern Recognition"},"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/T11130","display_name":"Coding theory and cryptography","score":0.9983999729156494,"subfield":{"id":"https://openalex.org/subfields/1702","display_name":"Artificial Intelligence"},"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/computer-science","display_name":"Computer science","score":0.7552410364151001},{"id":"https://openalex.org/keywords/demodulation","display_name":"Demodulation","score":0.6855803728103638},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.5934263467788696},{"id":"https://openalex.org/keywords/turbo-code","display_name":"Turbo code","score":0.5602911710739136},{"id":"https://openalex.org/keywords/clipping","display_name":"Clipping (morphology)","score":0.5269461870193481},{"id":"https://openalex.org/keywords/bit-error-rate","display_name":"Bit error rate","score":0.4809398055076599},{"id":"https://openalex.org/keywords/decoding-methods","display_name":"Decoding methods","score":0.37286996841430664},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.31994959712028503},{"id":"https://openalex.org/keywords/channel","display_name":"Channel (broadcasting)","score":0.2917117774486542}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7552410364151001},{"id":"https://openalex.org/C195251586","wikidata":"https://www.wikidata.org/wiki/Q1185939","display_name":"Demodulation","level":3,"score":0.6855803728103638},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.5934263467788696},{"id":"https://openalex.org/C114504821","wikidata":"https://www.wikidata.org/wiki/Q2164281","display_name":"Turbo code","level":3,"score":0.5602911710739136},{"id":"https://openalex.org/C2776848632","wikidata":"https://www.wikidata.org/wiki/Q853463","display_name":"Clipping (morphology)","level":2,"score":0.5269461870193481},{"id":"https://openalex.org/C56296756","wikidata":"https://www.wikidata.org/wiki/Q840922","display_name":"Bit error rate","level":3,"score":0.4809398055076599},{"id":"https://openalex.org/C57273362","wikidata":"https://www.wikidata.org/wiki/Q576722","display_name":"Decoding methods","level":2,"score":0.37286996841430664},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.31994959712028503},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.2917117774486542},{"id":"https://openalex.org/C138885662","wikidata":"https://www.wikidata.org/wiki/Q5891","display_name":"Philosophy","level":0,"score":0.0},{"id":"https://openalex.org/C41895202","wikidata":"https://www.wikidata.org/wiki/Q8162","display_name":"Linguistics","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1587/transcom.2021ebt0007","is_oa":true,"landing_page_url":"https://doi.org/10.1587/transcom.2021ebt0007","pdf_url":"https://www.jstage.jst.go.jp/article/transcom/E105.B/8/E105.B_2021EBT0007/_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.2021ebt0007","is_oa":true,"landing_page_url":"https://doi.org/10.1587/transcom.2021ebt0007","pdf_url":"https://www.jstage.jst.go.jp/article/transcom/E105.B/8/E105.B_2021EBT0007/_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":[],"awards":[],"funders":[],"has_content":{"pdf":true,"grobid_xml":true},"content_urls":{"pdf":"https://content.openalex.org/works/W4212782592.pdf","grobid_xml":"https://content.openalex.org/works/W4212782592.grobid-xml"},"referenced_works_count":64,"referenced_works":["https://openalex.org/W1974268631","https://openalex.org/W1994298603","https://openalex.org/W2001510177","https://openalex.org/W2011855562","https://openalex.org/W2043769961","https://openalex.org/W2056554149","https://openalex.org/W2058963238","https://openalex.org/W2066526279","https://openalex.org/W2068552397","https://openalex.org/W2071804136","https://openalex.org/W2072563372","https://openalex.org/W2089174869","https://openalex.org/W2096313585","https://openalex.org/W2096944245","https://openalex.org/W2104478100","https://openalex.org/W2106509114","https://openalex.org/W2109394932","https://openalex.org/W2111604404","https://openalex.org/W2117226691","https://openalex.org/W2117803526","https://openalex.org/W2118627808","https://openalex.org/W2125802182","https://openalex.org/W2129457795","https://openalex.org/W2132705049","https://openalex.org/W2133406100","https://openalex.org/W2154440160","https://openalex.org/W2156214717","https://openalex.org/W2166606237","https://openalex.org/W2171006634","https://openalex.org/W2171250293","https://openalex.org/W2172263489","https://openalex.org/W2249961970","https://openalex.org/W2320472932","https://openalex.org/W2327791868","https://openalex.org/W2355550369","https://openalex.org/W2398714011","https://openalex.org/W2468265964","https://openalex.org/W2502071389","https://openalex.org/W2621530037","https://openalex.org/W2786378417","https://openalex.org/W2789850867","https://openalex.org/W2796875185","https://openalex.org/W2797005565","https://openalex.org/W2887300663","https://openalex.org/W2921730081","https://openalex.org/W2944618043","https://openalex.org/W2946796111","https://openalex.org/W2962686942","https://openalex.org/W2963090386","https://openalex.org/W2964113506","https://openalex.org/W2978160662","https://openalex.org/W2982365927","https://openalex.org/W2982751948","https://openalex.org/W2991165022","https://openalex.org/W3005116230","https://openalex.org/W3011944543","https://openalex.org/W3014049391","https://openalex.org/W3026705917","https://openalex.org/W3042460923","https://openalex.org/W3092489128","https://openalex.org/W3136792847","https://openalex.org/W3161594686","https://openalex.org/W3170224768","https://openalex.org/W3208682401"],"related_works":["https://openalex.org/W1996543123","https://openalex.org/W2010761432","https://openalex.org/W4229074657","https://openalex.org/W2088132072","https://openalex.org/W2070047532","https://openalex.org/W2146363836","https://openalex.org/W2385405232","https://openalex.org/W2477790032","https://openalex.org/W2919167754","https://openalex.org/W2072373334"],"abstract_inverted_index":{"In":[0,36],"recent":[1],"years,":[2],"there":[3],"has":[4,23],"been":[5],"significant":[6],"interest":[7],"in":[8,117,121,187],"information-theoretic":[9],"security":[10,27,217,230],"techniques":[11],"that":[12,52,131,156,196,228],"encrypt":[13],"physical":[14,25],"layer":[15,26],"signals.":[16],"We":[17],"have":[18,159],"proposed":[19,198,221],"chaos":[20,38,68,137,154],"modulation,":[21,69,76],"which":[22,70,211],"both":[24],"and":[28,82,146,176,178,225],"channel":[29,42,102],"coding":[30,43],"gain,":[31],"as":[32,204],"one":[33,206],"such":[34],"technique.":[35],"the":[37,41,54,64,83,92,95,141,162,169,174,188,191,197,201,205,208,216,220],"modulation":[39,138,155],"method,":[40],"gain":[44],"can":[45,132],"be":[46,133],"increased":[47],"using":[48,63,207],"a":[49,72,105,126],"turbo":[50,118],"mechanism":[51],"exchanges":[53],"log-likelihood":[55],"ratio":[56],"(LLR)":[57],"with":[58],"an":[59],"external":[60],"concatenated":[61],"code":[62],"max-log":[65,96],"approximation.":[66],"However,":[67],"is":[71,88,166,180,223,231],"type":[73],"of":[74,94,144,219],"Gaussian":[75],"does":[77,157],"not":[78,89,158],"use":[79],"fixed":[80,160],"mapping,":[81],"distance":[84],"between":[85],"signal":[86],"points":[87],"constant;":[90],"therefore,":[91],"accuracy":[93],"approximated":[97],"LLR":[98,128,145,171],"degrades":[99],"under":[100],"poor":[101],"conditions.":[103],"As":[104],"result,":[106],"conventional":[107],"methods":[108],"suffer":[109],"from":[110,168,173],"performance":[111,203],"degradation":[112],"owing":[113],"to":[114,136],"error":[115,148],"propagation":[116],"decoding.":[119],"Therefore,":[120],"this":[122,184],"paper,":[123],"we":[124,226],"propose":[125],"new":[127],"clipping":[129,152,179],"method":[130,199],"optimally":[134],"applied":[135],"by":[139],"limiting":[140],"confidence":[142,164],"level":[143],"suppressing":[147],"propagation.":[149],"For":[150],"effective":[151],"on":[153,183],"mappings,":[161],"average":[163],"value":[165],"obtained":[167],"extrinsic":[170],"calculated":[172],"demodulator":[175,189],"decoder,":[177],"performed":[181],"based":[182],"value,":[185],"either":[186],"or":[190],"decoder.":[192],"Numerical":[193],"results":[194],"indicated":[195],"achieves":[200],"same":[202],"exact":[209],"LLR,":[210],"requires":[212],"complicated":[213],"calculations.":[214],"Furthermore,":[215],"feature":[218],"system":[222],"evaluated,":[224],"observe":[227],"sufficient":[229],"provided.":[232]},"counts_by_year":[{"year":2025,"cited_by_count":1},{"year":2023,"cited_by_count":1},{"year":2022,"cited_by_count":1}],"updated_date":"2026-06-11T09:08:48.828518","created_date":"2025-10-10T00:00:00"}
