{"metadata":{"_oai":{"id":"oai:ipsj.ixsq.nii.ac.jp:00066501","sets":["581:582:5905"]},"path":["5905"],"owner":"11","recid":"66501","title":["メディアストリーミングにおける高速移動通信網に適した動的符号化レート制御手法"],"pubdate":{"attribute_name":"公開日","attribute_value":"2009-10-15"},"_buckets":{"deposit":"87e13970-b0fc-4521-9e9d-a9da5efb5e2f"},"_deposit":{"id":"66501","pid":{"type":"depid","value":"66501","revision_id":0},"owners":[11],"status":"published","created_by":11},"item_title":"メディアストリーミングにおける高速移動通信網に適した動的符号化レート制御手法","author_link":["0","0"],"item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"メディアストリーミングにおける高速移動通信網に適した動的符号化レート制御手法"},{"subitem_title":"Media Streaming System with Dynamic Rate Control for High Speed Mobile Networks","subitem_title_language":"en"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"一般論文","subitem_subject_scheme":"Other"}]},"item_type_id":"2","publish_date":"2009-10-15","item_2_text_3":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"京都大学大学院情報学研究科"},{"subitem_text_value":"大阪大学大学院情報科学研究科"},{"subitem_text_value":"京都大学大学院情報学研究科"},{"subitem_text_value":"株式会社NTTドコモサービス&ソリューション開発部"},{"subitem_text_value":"株式会社NTTドコモサービス&ソリューション開発部"},{"subitem_text_value":"立命館大学総合理工学研究機構"}]},"item_2_text_4":{"attribute_name":"著者所属(英)","attribute_value_mlt":[{"subitem_text_value":"Graduate School of Informatics, Kyoto University","subitem_text_language":"en"},{"subitem_text_value":"Graduate School of Information Science and Technology, Osaka University","subitem_text_language":"en"},{"subitem_text_value":"Graduate School of Informatics, Kyoto University","subitem_text_language":"en"},{"subitem_text_value":"Service & Solution Development Department, NTT DOCOMO, INC.","subitem_text_language":"en"},{"subitem_text_value":"Service & Solution Development Department, NTT DOCOMO, INC.","subitem_text_language":"en"},{"subitem_text_value":"Research Organization of Science and Engineering, Ritsumeikan University","subitem_text_language":"en"}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"jpn"}]},"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/66501/files/IPSJ-JNL5010013.pdf"},"date":[{"dateType":"Available","dateValue":"2011-10-15"}],"format":"application/pdf","billing":["billing_file"],"filename":"IPSJ-JNL5010013.pdf","filesize":[{"value":"556.7 kB"}],"mimetype":"application/pdf","priceinfo":[{"tax":["include_tax"],"price":"660","billingrole":"5"},{"tax":["include_tax"],"price":"330","billingrole":"6"},{"tax":["include_tax"],"price":"0","billingrole":"8"},{"tax":["include_tax"],"price":"0","billingrole":"44"}],"accessrole":"open_date","version_id":"0f32cda7-4e7c-40f5-b2c3-413adf517d85","displaytype":"detail","licensetype":"license_note","license_note":"Copyright (c) 2009 by the Information Processing Society of Japan"}]},"item_2_creator_5":{"attribute_name":"著者名","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"廣本, 正之"},{"creatorName":"筒井, 弘"},{"creatorName":"越智, 裕之"},{"creatorName":"小佐野, 智之"},{"creatorName":"石川, 憲洋"},{"creatorName":"中村, 行宏"}],"nameIdentifiers":[{}]}]},"item_2_creator_6":{"attribute_name":"著者名(英)","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Masayuki, Hiromoto","creatorNameLang":"en"},{"creatorName":"Hiroshi, Tsutsui","creatorNameLang":"en"},{"creatorName":"Hiroyuki, Ochi","creatorNameLang":"en"},{"creatorName":"Tomoyuki, Osano","creatorNameLang":"en"},{"creatorName":"Norihiro, Ishikawa","creatorNameLang":"en"},{"creatorName":"Yukihiro, Nakamura","creatorNameLang":"en"}],"nameIdentifiers":[{}]}]},"item_2_source_id_9":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AN00116647","subitem_source_identifier_type":"NCID"}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourceuri":"http://purl.org/coar/resource_type/c_6501","resourcetype":"journal article"}]},"item_2_source_id_11":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"1882-7764","subitem_source_identifier_type":"ISSN"}]},"item_2_description_7":{"attribute_name":"論文抄録","attribute_value_mlt":[{"subitem_description":"高速移動通信網の発展により，携帯電話等の移動通信端末においてもネットワーク経由での動画像視聴が可能となってきている．しかし移動通信網では電波の受信状態の変化等により通信帯域の大幅な変動や一時的な切断が発生するため，固定ビットレートでの配信では画像の乱れ等の発生や再生自体が停止する可能性がある．本研究ではこれらを回避するため，通信品質の変化に応じ動画像ビットレートの動的制御を行い，不安定なネットワーク上でも途切れることなく視聴し続けることが可能なメディアストリーミングシステムを提案する．提案システムでは，サーバ側で実時間に対するトランスコード処理の遅延を検出することによりネットワークの変動を感知し，それに応じたレート制御を行う．本研究では特に高速移動通信網を想定し，発生しうる複数の帯域変動パターンに対し提案手法の評価を行い，画像の途切れ等のない安定したストリーミングが行えるレート制御手法の検討を行った．その結果，急激な帯域変動に対しても迅速にレート制御を行い，連続したストリーミングが行えることを示した．","subitem_description_type":"Other"}]},"item_2_description_8":{"attribute_name":"論文抄録(英)","attribute_value_mlt":[{"subitem_description":"Emerging high-speed mobile networks enable us to receive media streaming data by mobile terminals on demand. However, media streaming with fixed bitrate causes some problems such as annoying artificial noise, interruption, and so forth, since link quality fluctuates dramatically in such mobile networks. Motivated by this, in this paper, we propose a novel media streaming system with dynamic rate control scheme to achieve continuous streaming on such unstable networks. The proposed rate control scheme uses the delay of the transcoding process to estimate network bandwidth, and adjusts the bitrate of media streams dynamically. To demonstrate our system and scheme, the proposed streaming system is evaluated under some typical models of bandwidth change in high-speed mobile networks. The results show that stable and high-quality streaming without interruption can be achieved by the proposed scheme.","subitem_description_type":"Other"}]},"item_2_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicPageEnd":"2542","bibliographic_titles":[{"bibliographic_title":"情報処理学会論文誌"}],"bibliographicPageStart":"2532","bibliographicIssueDates":{"bibliographicIssueDate":"2009-10-15","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"10","bibliographicVolumeNumber":"50"}]},"relation_version_is_last":true,"weko_creator_id":"11"},"id":66501,"updated":"2025-01-22T01:01:28.781299+00:00","links":{},"created":"2025-01-18T23:27:14.871602+00:00"}