{"links":{},"metadata":{"_oai":{"id":"oai:ipsj.ixsq.nii.ac.jp:00209504","sets":["1164:4088:10494:10495"]},"path":["10495"],"owner":"44499","recid":"209504","title":["リアルタイムな音声通信品質の改善を目的としたインターネット回線品質計測"],"pubdate":{"attribute_name":"公開日","attribute_value":"2021-02-22"},"_buckets":{"deposit":"058fbaa9-3b30-4755-a42c-e90f2011091d"},"_deposit":{"id":"209504","pid":{"type":"depid","value":"209504","revision_id":0},"owners":[44499],"status":"published","created_by":44499},"item_title":"リアルタイムな音声通信品質の改善を目的としたインターネット回線品質計測","author_link":["528133","528137","528136","528132","528135","528134"],"item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"リアルタイムな音声通信品質の改善を目的としたインターネット回線品質計測"},{"subitem_title":"Measuring Quality of Internet Access for Real-time Audio Communications","subitem_title_language":"en"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"IA","subitem_subject_scheme":"Other"}]},"item_type_id":"4","publish_date":"2021-02-22","item_4_text_3":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"東京大学情報基盤センター"},{"subitem_text_value":"東京大学情報基盤センター"},{"subitem_text_value":"東京大学情報基盤センター"}]},"item_4_text_4":{"attribute_name":"著者所属(英)","attribute_value_mlt":[{"subitem_text_value":"Information Technology Center, University of Tokyo","subitem_text_language":"en"},{"subitem_text_value":"Information Technology Center, University of Tokyo","subitem_text_language":"en"},{"subitem_text_value":"Information Technology Center, University of Tokyo","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/209504/files/IPSJ-IOT21052009.pdf","label":"IPSJ-IOT21052009.pdf"},"format":"application/pdf","billing":["billing_file"],"filename":"IPSJ-IOT21052009.pdf","filesize":[{"value":"4.3 MB"}],"mimetype":"application/pdf","priceinfo":[{"tax":["include_tax"],"price":"0","billingrole":"43"},{"tax":["include_tax"],"price":"0","billingrole":"44"}],"accessrole":"open_login","version_id":"69eda391-7b27-4c25-8841-e94b60fd3a41","displaytype":"detail","licensetype":"license_note","license_note":"Copyright (c) 2021 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":"中村, 遼"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"空閑, 洋平"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"岡田, 和也"}],"nameIdentifiers":[{}]}]},"item_4_creator_6":{"attribute_name":"著者名(英)","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Ryo, Nakamura","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Yohei, Kuga","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Kazuya, Okada","creatorNameLang":"en"}],"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":"本研究では,リモートワークの普及などでより重要になりつつあるインターネットを用いたリアルタイムコミュニケーションにおける通信品質の改善を目的として,現在のインターネット回線品質の基礎調査を実施した.リアルタイムな通信では,パケットの往復遅延やそのゆらぎが品質に大きく影響する.本計測では,現在映像・音声通信として広く使われている WebRTC の基礎通信プロトコルである UDP/RTP を模擬したトラフィックを生成し,地理的に分散した 4 箇所に設置したプローブ用マシンから,計 5 つのアクセス回線を利用してパケットの到着間隔のゆらぎを計測した.計測にあたって実装したツールは,パケットの受信時刻を記録するにあたり,Intel の LAN コントローラに実装されている PTP ハードウェアタイムスタンプを用いることで,サブマイクロ秒精度でのゆらぎが計測できる.本稿では,この計測実験の初期段階の結果について報告する.","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":"2021-02-22","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"9","bibliographicVolumeNumber":"2021-IOT-52"}]},"relation_version_is_last":true,"weko_creator_id":"44499"},"created":"2025-01-19T01:10:48.611155+00:00","updated":"2025-01-19T18:30:00.585096+00:00","id":209504}