{"created":"2021-03-01T06:07:05.338116+00:00","id":3336,"links":{},"metadata":{"_buckets":{"deposit":"e3589a46-9a57-40fe-845d-701818eb7487"},"_deposit":{"id":"3336","owners":[],"pid":{"revision_id":0,"type":"depid","value":"3336"},"status":"published"},"_oai":{"id":"oai:niigata-u.repo.nii.ac.jp:00003336","sets":["423:424:425","453:454"]},"item_5_alternative_title_1":{"attribute_name":"その他のタイトル","attribute_value_mlt":[{"subitem_alternative_title":"Application of Downlink Multiuser MIMO Transmission Technology to Next Generation Very High Throughput Wireless Access Systems"}]},"item_5_biblio_info_6":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2010-09","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"9","bibliographicPageEnd":"1139","bibliographicPageStart":"1127","bibliographicVolumeNumber":"J93-B","bibliographic_titles":[{"bibliographic_title":"電子情報通信学会論文誌. B, 通信"},{"bibliographic_title":"電子情報通信学会論文誌. B, 通信","bibliographic_titleLang":"en"}]}]},"item_5_description_4":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"高い周波数利用効率を実現する技術としてMU-MIMO(Multiuser-Multiple-Input-Multiple-Output)伝送技術が注目され,現在策定中の次世代無線LANシステムの規格IEEE802.11acでもシステムスループットを向上させる技術として採用される可能性が高まっている.本論文ではMU-MIMO伝送技術の実システムへの応用に着目し,信号処理量が比較的少ない線形信号処理によるMU-MIMO技術に焦点を絞り,屋内実環境での環境変動特性,MU-MIMO技術の適用領域,下りリンクMU-MIMO技術を概説する.更に,試作した送受16アンテナから構成されるMU-MIMO伝送評価用ハードウェアでのデータ伝送実験の結果によって,周波数利用効率50bit/s/Hzが実環境において達成可能であることを示す.","subitem_description_type":"Abstract"}]},"item_5_full_name_3":{"attribute_name":"著者別名","attribute_value_mlt":[{"nameIdentifiers":[{"nameIdentifier":"42172","nameIdentifierScheme":"WEKO"}],"names":[{"name":"Takatori, Yasushi"}]},{"nameIdentifiers":[{"nameIdentifier":"42173","nameIdentifierScheme":"WEKO"}],"names":[{"name":"Nishimori, Kentaro"}]}]},"item_5_publisher_7":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"電子情報通信学会"}]},"item_5_relation_31":{"attribute_name":"異版である","attribute_value_mlt":[{"subitem_relation_type":"isVersionOf","subitem_relation_type_id":{"subitem_relation_type_id_text":"http://ci.nii.ac.jp/naid/110007730949","subitem_relation_type_select":"URI"}},{"subitem_relation_type":"isVersionOf","subitem_relation_type_id":{"subitem_relation_type_id_text":"http://www.ieice.org/jpn/trans_online/","subitem_relation_type_select":"URI"}}]},"item_5_rights_15":{"attribute_name":"権利","attribute_value_mlt":[{"subitem_rights":"Copyright(C)2010 IEICE"},{"subitem_rights":"本文データは学協会の許諾に基づきCiNiiから複製したものである"}]},"item_5_select_19":{"attribute_name":"著者版フラグ","attribute_value_mlt":[{"subitem_select_item":"publisher"}]},"item_5_source_id_11":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AA11325909","subitem_source_identifier_type":"NCID"}]},"item_5_source_id_9":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"13444697","subitem_source_identifier_type":"ISSN"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"鷹取, 泰司"}],"nameIdentifiers":[{"nameIdentifier":"42170","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"西森, 健太郎"}],"nameIdentifiers":[{"nameIdentifier":"42171","nameIdentifierScheme":"WEKO"}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2019-07-30"}],"displaytype":"detail","filename":"110007730949.pdf","filesize":[{"value":"1.7 MB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"110007730949.pdf","url":"https://niigata-u.repo.nii.ac.jp/record/3336/files/110007730949.pdf"},"version_id":"e3a786d8-341d-4be2-8967-3c11791c914f"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"マルチユーザMIMO","subitem_subject_scheme":"Other"},{"subitem_subject":"空間多重","subitem_subject_scheme":"Other"},{"subitem_subject":"高速無線LAN","subitem_subject_scheme":"Other"},{"subitem_subject":"IEEE802.11ac","subitem_subject_scheme":"Other"},{"subitem_subject":"空間信号処理","subitem_subject_scheme":"Other"}]},"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":"journal article","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_title":"次世代高速無線アクセスシステムへの下りリンクマルチユーザMIMO技術の適用(<特集>高度化するワイヤレスシステムを支えるアンテナ・伝搬技術論文)","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"次世代高速無線アクセスシステムへの下りリンクマルチユーザMIMO技術の適用(<特集>高度化するワイヤレスシステムを支えるアンテナ・伝搬技術論文)"},{"subitem_title":"次世代高速無線アクセスシステムへの下りリンクマルチユーザMIMO技術の適用(<特集>高度化するワイヤレスシステムを支えるアンテナ・伝搬技術論文)","subitem_title_language":"en"}]},"item_type_id":"5","owner":"1","path":["454","425"],"pubdate":{"attribute_name":"公開日","attribute_value":"2014-12-02"},"publish_date":"2014-12-02","publish_status":"0","recid":"3336","relation_version_is_last":true,"title":["次世代高速無線アクセスシステムへの下りリンクマルチユーザMIMO技術の適用(<特集>高度化するワイヤレスシステムを支えるアンテナ・伝搬技術論文)"],"weko_creator_id":"1","weko_shared_id":null},"updated":"2022-12-15T03:36:27.786271+00:00"}