{"id":218998,"updated":"2025-01-19T14:57:36.894237+00:00","links":{},"created":"2025-01-19T01:19:20.271593+00:00","metadata":{"_oai":{"id":"oai:ipsj.ixsq.nii.ac.jp:00218998","sets":["1164:1579:10818:10973"]},"path":["10973"],"owner":"44499","recid":"218998","title":["モバイル分散協調キャッシュにおけるユーザQoE向上のためのコンテンツ配置手法"],"pubdate":{"attribute_name":"公開日","attribute_value":"2022-07-20"},"_buckets":{"deposit":"3772fd92-be4c-46f3-b427-0601e7d34e58"},"_deposit":{"id":"218998","pid":{"type":"depid","value":"218998","revision_id":0},"owners":[44499],"status":"published","created_by":44499},"item_title":"モバイル分散協調キャッシュにおけるユーザQoE向上のためのコンテンツ配置手法","author_link":["570654","570656","570657","570659","570658","570655"],"item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"モバイル分散協調キャッシュにおけるユーザQoE向上のためのコンテンツ配置手法"},{"subitem_title":"An Efficient Content Sharing for the User QoE Improvement in Mobile Cooperative Cache","subitem_title_language":"en"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"クラウド・分散コンピューティング","subitem_subject_scheme":"Other"}]},"item_type_id":"4","publish_date":"2022-07-20","item_4_text_3":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"電気通信大学大学院情報理工学研究科"},{"subitem_text_value":"電気通信大学大学院情報理工学研究科"},{"subitem_text_value":"電気通信大学大学院情報理工学研究科"}]},"item_4_text_4":{"attribute_name":"著者所属(英)","attribute_value_mlt":[{"subitem_text_value":"Graduate School of Informatics and Engineering, The University of Electro-Communications","subitem_text_language":"en"},{"subitem_text_value":"Graduate School of Informatics and Engineering, The University of Electro-Communications","subitem_text_language":"en"},{"subitem_text_value":"Graduate School of Informatics and Engineering, The University of Electro-Communications","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/218998/files/IPSJ-ARC22249009.pdf","label":"IPSJ-ARC22249009.pdf"},"format":"application/pdf","billing":["billing_file"],"filename":"IPSJ-ARC22249009.pdf","filesize":[{"value":"1.0 MB"}],"mimetype":"application/pdf","priceinfo":[{"tax":["include_tax"],"price":"0","billingrole":"16"},{"tax":["include_tax"],"price":"0","billingrole":"44"}],"accessrole":"open_login","version_id":"9783b2c0-ebec-4329-bc4f-5ae79eeb4dd1","displaytype":"detail","licensetype":"license_note","license_note":"Copyright (c) 2022 by the Institute of Electronics, Information and Communication Engineers This SIG report is only available to those in membership of the SIG."}]},"item_4_creator_5":{"attribute_name":"著者名","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"秋場, 大暉"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"策力, 木格"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"吉永, 努"}],"nameIdentifiers":[{}]}]},"item_4_creator_6":{"attribute_name":"著者名(英)","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Taiki, Akiba","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Celimuge, Wu","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Tsutomu, Yoshinaga","creatorNameLang":"en"}],"nameIdentifiers":[{}]}]},"item_4_source_id_9":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AN10096105","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":"2188-8574","subitem_source_identifier_type":"ISSN"}]},"item_4_description_7":{"attribute_name":"論文抄録","attribute_value_mlt":[{"subitem_description":"近年，モバイルユーザの増加や動画コンテンツの高画質化により，基地局の負荷が増大している．基地局の負荷低減の方法として，個々のモバイル端末をキャッシュサーバと見なし，Device-to-Device（D2D）通信によってキャッシュを共有する分散協調キャッシュが提案されている．また，コンテンツデータを階層データとして細分化し，配信する画質を動的に変更できる動画像符号化方式を用いる手法が提案されている．一方で，既存の軽量なコンテンツ配置手法は可変画質を考慮しておらず，キャッシュ容量を効率的に利用できない．本研究では，既存の軽量なコンテンツ配置手法を改良し，スケーラブルな動画像符号化方式によって細分化されたキャッシュデータを効率的に配置するための手法を提案する．基地局の混雑状況に応じて柔軟にキャッシュ制御を行うことで，輻輳によってコンテンツを視聴できないユーザを削減し，ユーザQoE の向上を実現する．","subitem_description_type":"Other"}]},"item_4_description_8":{"attribute_name":"論文抄録(英)","attribute_value_mlt":[{"subitem_description":"In recent years, a load on base stations has been increasing due to an increase in the number of mobile users and a higher quality of video content. A distributed cooperative caching technique, in which each device runs as a cache server and shares the cache through device-to-device (D2D) communication, has been proposed to reduce the load of base stations. In addition, a method that subdivides content data into hierarchical one and uses a video coding scheme that can dynamically change a quality has been proposed. On the other hand, existing lightweight content placement methods don’t consider to use the scalable video resolution and therefore cannot use cache capacity efficiently. In this research, we propose an efficient content sharing that suits for the scalable video coding scheme. Our experiments show that the proposed cache control scheme increases the number of users who can continue to view content even in a network congested case resulting good user’s QoE.","subitem_description_type":"Other"}]},"item_4_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicPageEnd":"6","bibliographic_titles":[{"bibliographic_title":"研究報告システム・アーキテクチャ（ARC）"}],"bibliographicPageStart":"1","bibliographicIssueDates":{"bibliographicIssueDate":"2022-07-20","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"9","bibliographicVolumeNumber":"2022-ARC-249"}]},"relation_version_is_last":true,"weko_creator_id":"44499"}}