{"created":"2024-03-29T08:14:35.945175+00:00","id":2000175,"links":{},"metadata":{"_buckets":{"deposit":"afed548e-6ddd-4c45-a41e-585b0af11b15"},"_deposit":{"created_by":5,"id":"2000175","owner":"5","owners":[5],"pid":{"revision_id":0,"type":"depid","value":"2000175"},"status":"published"},"_oai":{"id":"oai:niit.repo.nii.ac.jp:02000175","sets":["34"]},"author_link":["5415","5414","5416","5417","12","1118","5410","5409","5411","5412","8","1295"],"item_5_biblio_info_6":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2017-10-12"},"bibliographicIssueNumber":"247","bibliographicNumberOfPages":"6","bibliographicPageEnd":"40","bibliographicPageStart":"35","bibliographicVolumeNumber":"117","bibliographic_titles":[{"bibliographic_title":"電子情報通信学会技術研究報告. MRIS, 磁気記録・情報ストレージ","bibliographic_titleLang":"ja"}]}]},"item_5_description_4":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"近年,HDD(hard disk drive)の高記録密度化記録のために,強力な誤り訂正符号としてLDPC(low density parity check)符号を用いた繰返し復号方式が導入されている．本稿では,SMR(shingled magnetic recording)におけるLDPC符号化．繰返し復号化方式に対して，パリテイ検査結果を用いた対数尤度比LLR(log-likelihood ratio)の修正による繰返し復号の改善について検討した．その結果，修正しない場合には誤りが残るセクタに対しても,LLRを修正することで，誤りのない復号が可能となることが明らかとなった．","subitem_description_language":"ja","subitem_description_type":"Abstract"}]},"item_5_publisher_32":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"電子情報通信学会","subitem_publisher_language":"ja"}]},"item_5_rights_12":{"attribute_name":"権利","attribute_value_mlt":[{"subitem_rights":"Copyright©2017 by IEICE"}]},"item_5_source_id_7":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"0913-5685","subitem_source_identifier_type":"ISSN"}]},"item_5_source_id_9":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AA12826772","subitem_source_identifier_type":"NCID"}]},"item_5_version_type_15":{"attribute_name":"著者版フラグ","attribute_value_mlt":[{"subitem_version_resource":"http://purl.org/coar/version/c_970fb48d4fbd8a85","subitem_version_type":"VoR"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"西川, まどか","creatorNameLang":"ja"}],"familyNames":[{"familyName":"西川","familyNameLang":"ja"}],"givenNames":[{"givenName":"まどか","givenNameLang":"ja"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"仲村, 泰明","creatorNameLang":"ja"}],"familyNames":[{"familyName":"仲村","familyNameLang":"ja"}],"givenNames":[{"givenName":"泰明","givenNameLang":"ja"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"大沢, 寿","creatorNameLang":"ja"}],"familyNames":[{"familyName":"大沢","familyNameLang":"ja"}],"givenNames":[{"givenName":"寿","givenNameLang":"ja"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"岡本, 好弘","creatorNameLang":"ja"}],"familyNames":[{"familyName":"岡本","familyNameLang":"ja"}],"givenNames":[{"givenName":"好弘","givenNameLang":"ja"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"金井, 靖","creatorNameLang":"ja"}],"familyNames":[{"familyName":"金井","familyNameLang":"ja"}],"givenNames":[{"givenName":"靖","givenNameLang":"ja"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"村岡, 裕明","creatorNameLang":"ja"}],"familyNames":[{"familyName":"村岡","familyNameLang":"ja"}],"givenNames":[{"givenName":"裕明","givenNameLang":"ja"}],"nameIdentifiers":[{}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_access","date":[{"dateType":"Available","dateValue":"2024-04-12"}],"displaytype":"detail","filename":"niit2023_15.pdf","filesize":[{"value":"1.8 MB"}],"format":"application/pdf","licensetype":"license_5","url":{"url":"https://niit.repo.nii.ac.jp/record/2000175/files/niit2023_15.pdf"},"version_id":"c7caf19f-7d05-483a-a658-a8febe5c1b7e"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"SMR"},{"subitem_subject":"LDPC"},{"subitem_subject":"LLR"},{"subitem_subject":"パリティ検査情報"},{"subitem_subject":"SMR"},{"subitem_subject":"LDPC"},{"subitem_subject":"LLR"},{"subitem_subject":"Party check information"}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"jpn"}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourcetype":"article","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_title":"SMRにおけるパリティ検査情報を用いた LLR修正による繰返し復号の性能改善","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"SMRにおけるパリティ検査情報を用いた LLR修正による繰返し復号の性能改善","subitem_title_language":"ja"}]},"item_type_id":"5","owner":"5","path":["34"],"pubdate":{"attribute_name":"PubDate","attribute_value":"2024-04-12"},"publish_date":"2024-04-12","publish_status":"0","recid":"2000175","relation_version_is_last":true,"title":["SMRにおけるパリティ検査情報を用いた LLR修正による繰返し復号の性能改善"],"weko_creator_id":"5","weko_shared_id":-1},"updated":"2024-03-29T08:33:38.808823+00:00"}