{"created":"2023-07-25T10:24:29.503247+00:00","id":1808,"links":{},"metadata":{"_buckets":{"deposit":"3ec23adb-97a1-4b0f-9acb-f15f8a360869"},"_deposit":{"created_by":1,"id":"1808","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"1808"},"status":"published"},"_oai":{"id":"oai:hiroshima-cu.repo.nii.ac.jp:00001808","sets":["54:407:406"]},"author_link":["9480","9482","9477","9481","9484","9479","9478","9483"],"item_3_alternative_title_1":{"attribute_name":"その他（別言語等）のタイトル","attribute_value_mlt":[{"subitem_alternative_title":"ダイキボ Wi-Fi ネットワーク ニ オケル パッシブ ツウシン ヒンシツ スイテイ シュホウ ノ ジッケンテキ ヒョウカ"}]},"item_3_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2018-09","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"17","bibliographicPageEnd":"14","bibliographicPageStart":"9","bibliographicVolumeNumber":"IA2018","bibliographic_titles":[{"bibliographic_title":"電子情報通信学会技術研究報告. IA, インターネットアーキテクチャ"}]}]},"item_3_description_19":{"attribute_name":"フォーマット","attribute_value_mlt":[{"subitem_description":"application/pdf","subitem_description_type":"Other"}]},"item_3_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"大規模Wi-Fi ネットワークにおけるパッシブな通信品質推定手法の推定精度について調査する．NFDF(null function data frame) は端末から定期的に送信される固定長のIEEE 802.11 フレームであり，この特性を利用した通信品質推定手法が提案されてきた．本報告では，NFDF の再送率がフレーム誤り率と相関する可能性について指摘し，その相関関係を調査する．具体的には，IEEE 802.11a/ac を対象として，NFDF カウント機能を組み込んだアクセスポイントを実装し，マルチユーザ干渉を制御した理想環境，および，アクセスポイント数24 の大規模イベントにおいて評価する．評価実験では，理想的な環境での測定において相関係数0.65，大規模イベント会場の測定において相関係数0.56 が得られ，大規模Wi-Fi ネットワークにおいても統計的に有意な指標として機能することが確認できた．","subitem_description_type":"Abstract"},{"subitem_description":"In this report, we investigate the QoS estimation accuracy of a passive-monitoring-based frame count method in a large-scale Wi-Fi network. The null function data frame (NFDF) is a fixed-length IEEE 802.11 frame and is periodically emitted from a user equipment. Here, the NFDF-based QoS estimation method has been proposed in the literature. We implemented this method in an access point, and evaluated its performance both in an ideal environment and a large-scale conference. Through the real-world measurements in the ideal environment, we obtained the correlation coefficient of 0.65 between the NFDF retry ratio and the corresponding frame error rate. Furthermore, the correlation coefficient was 0.56 at the large-scale conference, which justified the efficacy of the NFDF counting method.","subitem_description_type":"Abstract"}]},"item_3_description_6":{"attribute_name":"内容記述","attribute_value_mlt":[{"subitem_description":"「信学技報」としてのVol., no. は, Vol. 118, no. 204","subitem_description_type":"Other"}]},"item_3_publisher_8":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"電子情報通信学会"}]},"item_3_relation_17":{"attribute_name":"関連サイト","attribute_value_mlt":[{"subitem_relation_name":[{"subitem_relation_name_text":"電子情報通信学会"}],"subitem_relation_type_id":{"subitem_relation_type_id_text":"http://www.ieice.org/jpn/index.html","subitem_relation_type_select":"URI"}}]},"item_3_rights_15":{"attribute_name":"権利","attribute_value_mlt":[{"subitem_rights":"Copyright ©2018 by IEICE"}]},"item_3_source_id_11":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AA11553608|AA11740128","subitem_source_identifier_type":"NCID"}]},"item_3_version_type_20":{"attribute_name":"著者版フラグ","attribute_value_mlt":[{"subitem_version_resource":"http://purl.org/coar/version/c_970fb48d4fbd8a85","subitem_version_type":"VoR"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"石川, 直樹"},{"creatorName":"イシカワ, ナオキ","creatorNameLang":"ja-Kana"}],"nameIdentifiers":[{"nameIdentifier":"9477","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"大石, 恭弘"},{"creatorName":"オオイシ, ヤスヒロ","creatorNameLang":"ja-Kana"}],"nameIdentifiers":[{"nameIdentifier":"9478","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"中山, 奨"},{"creatorName":"ナカヤマ, ツトム","creatorNameLang":"ja-Kana"}],"nameIdentifiers":[{"nameIdentifier":"9479","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"前田, 香織"},{"creatorName":"マエダ, カオリ","creatorNameLang":"ja-Kana"}],"nameIdentifiers":[{"nameIdentifier":"9480","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"ISHIKAWA, Naoki","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"9481","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"OHISHI, Yasuhiro","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"9482","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"NAKAYAMA, Tsutomu","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"9483","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"MAEDA, Kaori","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"9484","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":"2023-03-10"}],"displaytype":"detail","filename":"IEICE_IA2018-17.pdf","filesize":[{"value":"1.5 MB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"IEICE_IA2018-17.pdf","url":"https://hiroshima-cu.repo.nii.ac.jp/record/1808/files/IEICE_IA2018-17.pdf"},"version_id":"4e4d60d4-3d6b-4ff7-8c27-ce9c7663b8e2"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"IEEE 802.11","subitem_subject_scheme":"Other"},{"subitem_subject":"Wi-Fi","subitem_subject_scheme":"Other"},{"subitem_subject":"パッシブ推定","subitem_subject_scheme":"Other"},{"subitem_subject":"QoS","subitem_subject_scheme":"Other"},{"subitem_subject":"フレーム誤り率","subitem_subject_scheme":"Other"},{"subitem_subject":"大規模ネットワーク","subitem_subject_scheme":"Other"},{"subitem_subject":"passive estimation","subitem_subject_scheme":"Other"},{"subitem_subject":"quality of service (QoS)","subitem_subject_scheme":"Other"},{"subitem_subject":"frame error rate (FER)","subitem_subject_scheme":"Other"},{"subitem_subject":"large-scale network","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":"technical report","resourceuri":"http://purl.org/coar/resource_type/c_18gh"}]},"item_title":"大規模Wi-Fi ネットワークにおけるパッシブ通信品質推定手法の実験的評価","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"大規模Wi-Fi ネットワークにおけるパッシブ通信品質推定手法の実験的評価"},{"subitem_title":"Passive QoS Estimation Method for a Large-Scale Wi-Fi Network and Its Experimental Evaluation","subitem_title_language":"en"}]},"item_type_id":"3","owner":"1","path":["406"],"pubdate":{"attribute_name":"公開日","attribute_value":"2023-03-10"},"publish_date":"2023-03-10","publish_status":"0","recid":"1808","relation_version_is_last":true,"title":["大規模Wi-Fi ネットワークにおけるパッシブ通信品質推定手法の実験的評価"],"weko_creator_id":"1","weko_shared_id":1},"updated":"2023-07-25T10:32:36.574813+00:00"}