{"updated":"2025-01-19T15:44:25.665375+00:00","metadata":{"_oai":{"id":"oai:ipsj.ixsq.nii.ac.jp:00216775","sets":["1164:4088:10830:10831"]},"path":["10831"],"owner":"44499","recid":"216775","title":["WebRTCを利用した動画配信利用時の無線LAN品質測定"],"pubdate":{"attribute_name":"公開日","attribute_value":"2022-02-28"},"_buckets":{"deposit":"ea8d1e17-f02e-405d-860d-e085e873badb"},"_deposit":{"id":"216775","pid":{"type":"depid","value":"216775","revision_id":0},"owners":[44499],"status":"published","created_by":44499},"item_title":"WebRTCを利用した動画配信利用時の無線LAN品質測定","author_link":["560254","560253","560252","560255"],"item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"WebRTCを利用した動画配信利用時の無線LAN品質測定"},{"subitem_title":"Network quality measurement when using video delivery using WebRTC","subitem_title_language":"en"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"IOT","subitem_subject_scheme":"Other"}]},"item_type_id":"4","publish_date":"2022-02-28","item_4_text_3":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"東京大学総合文化研究科"},{"subitem_text_value":"東京工業大学学術国際情報センター"},{"subitem_text_value":"トヨタ自動車株式会社"},{"subitem_text_value":"トヨタ自動車株式会社"}]},"item_4_text_4":{"attribute_name":"著者所属(英)","attribute_value_mlt":[{"subitem_text_value":"Graduate School of Arts and Sciences, The University of Tokyo","subitem_text_language":"en"},{"subitem_text_value":"Global Scientific Information and Computing Center, Tokyo Institute of Technology","subitem_text_language":"en"},{"subitem_text_value":"Toyota Motor Corporation","subitem_text_language":"en"},{"subitem_text_value":"Toyota Motor Corporation","subitem_text_language":"en"}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"jpn"}]},"item_publisher":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"情報処理学会","subitem_publisher_language":"ja"}]},"publish_status":"0","weko_shared_id":-1,"item_file_price":{"attribute_name":"Billing file","attribute_type":"file","attribute_value_mlt":[{"url":{"url":"https://ipsj.ixsq.nii.ac.jp/record/216775/files/IPSJ-IOT22056019.pdf","label":"IPSJ-IOT22056019.pdf"},"date":[{"dateType":"Available","dateValue":"2024-02-28"}],"format":"application/pdf","billing":["billing_file"],"filename":"IPSJ-IOT22056019.pdf","filesize":[{"value":"2.0 MB"}],"mimetype":"application/pdf","priceinfo":[{"tax":["include_tax"],"price":"660","billingrole":"5"},{"tax":["include_tax"],"price":"330","billingrole":"6"},{"tax":["include_tax"],"price":"0","billingrole":"43"},{"tax":["include_tax"],"price":"0","billingrole":"44"}],"accessrole":"open_date","version_id":"1e8a0969-98cb-4d74-8f92-193098395c5c","displaytype":"detail","licensetype":"license_note","license_note":"Copyright (c) 2022 by the Information Processing Society of Japan"}]},"item_4_creator_5":{"attribute_name":"著者名","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"石原, 知洋"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"北口, 善明"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"阿部, 博"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"金子, 直矢"}],"nameIdentifiers":[{}]}]},"item_4_source_id_9":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AA12326962","subitem_source_identifier_type":"NCID"}]},"item_4_textarea_12":{"attribute_name":"Notice","attribute_value_mlt":[{"subitem_textarea_value":"SIG Technical Reports are nonrefereed and hence may later appear in any journals, conferences, symposia, etc."}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourceuri":"http://purl.org/coar/resource_type/c_18gh","resourcetype":"technical report"}]},"item_4_source_id_11":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"2188-8787","subitem_source_identifier_type":"ISSN"}]},"item_4_description_7":{"attribute_name":"論文抄録","attribute_value_mlt":[{"subitem_description":"近年の大学授業において，対面およびオンラインの両方のタイプの授業が混在して実施される状況が増加している．そのような場合，学生が大学でオンライン講義を受講する状況も生まれるため，大学の無線 LAN インフラは多人数でのオンライン講義の受講が可能であることが求められている．安定的な無線 LAN の提供のためには無線 LAN 環境の測定・監視が不可欠であるが，従来のような帯域測定や機器監視では中程度の帯域が連続的に発生する配信講義の品質を評価することが困難である．そこで本報告では，オンライン講義の受講品質に特化した無線 LAN 環境の測定について述べる．オンライン配信に採用されることが多い WebRTC を用いて，大規模かつ断続的に送受信試験を実施しつつ，クライアント側でアプリケーションレイヤでの品質測定をおこなうことで，従来の測定では追いきれなかった無線 LAN 環境におけるオンライン配信品質の評価および監視を実施した．","subitem_description_type":"Other"}]},"item_4_description_8":{"attribute_name":"論文抄録(英)","attribute_value_mlt":[{"subitem_description":"Due to the COVID-19, classes in schools have become online, hybrid, and on-demand in recent years. Various types of classes, including face-to-face classes, are now offered on campuses, and there are situations where students take online classes at school. Since students take classes using their own terminals, the university's wireless LAN infrastructure is used for communication, such as class distribution. Therefore, it is necessary to provide a stable wireless LAN infrastructure to a large number of users on campus. Operational issues for stable wireless LAN operation and measurement of the wireless LAN environment have been widely researched and developed, including detecting anomalies at the device level, bandwidth measurement at specific times, and intermittent wireless LAN environment measurement. However, today's main need for university wireless LANs is for online lectures. In this paper, we propose a new method for measuring the bandwidth of a wireless LAN in a classroom. In this paper, we describe the measurement of the quality of online lectures in a wireless LAN environment using WebRTC, which is often used for online delivery. In this paper, we describe the measurement of the wireless LAN environment specialized for the quality of online lectures. The quality of online delivery in a wireless LAN environment was evaluated and monitored.","subitem_description_type":"Other"}]},"item_4_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicPageEnd":"7","bibliographic_titles":[{"bibliographic_title":"研究報告インターネットと運用技術（IOT）"}],"bibliographicPageStart":"1","bibliographicIssueDates":{"bibliographicIssueDate":"2022-02-28","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"19","bibliographicVolumeNumber":"2022-IOT-56"}]},"relation_version_is_last":true,"weko_creator_id":"44499"},"created":"2025-01-19T01:17:17.402599+00:00","id":216775,"links":{}}