{"links":{},"id":2007401,"metadata":{"_oai":{"id":"oai:ipsj.ixsq.nii.ac.jp:02007401","sets":["1164:4088:1771221559804:1771221642894"]},"path":["1771221642894"],"owner":"80578","recid":"2007401","title":["920MHz帯Private LoRaにおけるTCP再送抑制のためのACK複製手法"],"pubdate":{"attribute_name":"PubDate","attribute_value":"2026-02-24"},"_buckets":{"deposit":"c5a3846a-9d35-4bd8-a8e6-d42a1b35c7a1"},"_deposit":{"id":"2007401","pid":{"type":"depid","value":"2007401","revision_id":0},"owners":[80578],"status":"published","created_by":80578},"item_title":"920MHz帯Private LoRaにおけるTCP再送抑制のためのACK複製手法","author_link":[],"item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"920MHz帯Private LoRaにおけるTCP再送抑制のためのACK複製手法","subitem_title_language":"ja"},{"subitem_title":"ACK Duplication Method for Suppressing TCP Retransmissions in a 920MHz Private LoRa Network","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":"2026-02-24","item_4_text_3":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"九州工業大学大学院工学府"},{"subitem_text_value":"九州工業大学大学院工学研究院"},{"subitem_text_value":"九州工業大学大学院情報工学研究院"},{"subitem_text_value":"九州工業大学大学院工学研究院"},{"subitem_text_value":"情報通信研究機構レジリエントICT研究センター"},{"subitem_text_value":"情報通信研究機構レジリエントICT研究センター"}]},"item_4_text_4":{"attribute_name":"著者所属(英)","attribute_value_mlt":[{"subitem_text_value":"Graduate School of Engineering, Kyushu Institute of Technology","subitem_text_language":"en"},{"subitem_text_value":"Faculty of Engineering, Kyushu Institute of Technology","subitem_text_language":"en"},{"subitem_text_value":"Faculty of Computer Science and Systems Engineering, Kyushu Institute of Technology","subitem_text_language":"en"},{"subitem_text_value":"Faculty of Engineering, Kyushu Institute of Technology","subitem_text_language":"en"},{"subitem_text_value":"Resilient ICT Research Center, National Institute of Information and Communications Technology","subitem_text_language":"en"},{"subitem_text_value":"Resilient ICT Research Center, National Institute of Information and Communications Technology","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/2007401/files/IPSJ-IOT26072024.pdf","label":"IPSJ-IOT26072024.pdf"},"date":[{"dateType":"Available","dateValue":"9999-01-01"}],"format":"application/pdf","billing":["billing_file"],"filename":"IPSJ-IOT26072024.pdf","filesize":[{"value":"1.1 MB"}],"mimetype":"application/pdf","priceinfo":[{"tax":["include_tax"],"price":"0","billingrole":"43"},{"tax":["include_tax"],"price":"0","billingrole":"44"}],"accessrole":"open_date","version_id":"5f30ee66-2ee0-41f7-9701-7606d578bdac","displaytype":"detail","licensetype":"license_note","license_note":"Copyright (c) 2026 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":"荒巻,瑛翔"}]},{"creatorNames":[{"creatorName":"野林,大起"}]},{"creatorNames":[{"creatorName":"塚本,和也"}]},{"creatorNames":[{"creatorName":"池永,全志"}]},{"creatorNames":[{"creatorName":"佐藤,剛至"}]},{"creatorNames":[{"creatorName":"滝沢,賢一"}]}]},"item_4_creator_6":{"attribute_name":"著者名(英)","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Eisho Aramaki","creatorNameLang":"en"}]},{"creatorNames":[{"creatorName":"Daiki Nobayashi","creatorNameLang":"en"}]},{"creatorNames":[{"creatorName":"Kazuya Tsukamoto","creatorNameLang":"en"}]},{"creatorNames":[{"creatorName":"Takeshi Ikenaga","creatorNameLang":"en"}]},{"creatorNames":[{"creatorName":"Goshi Sato","creatorNameLang":"en"}]},{"creatorNames":[{"creatorName":"Kenichi Takizawa","creatorNameLang":"en"}]}]},"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":"Low-Power Wide-Area（LPWA）は，Internet of Things（IoT）での利用が期待される通信技術である．独自のプロトコルを使用する多くのLPWAでは，TCP/IPを用いる他のネットワークに接続されたデバイスと直接通信することができないため，センサ情報の収集や遠隔管理・保守は，基地局やゲートウェイによる仲介やプロトコル変換が必要となる．既存のインターネットアプリケーションや運用ツールをそのまま活用するには，LPWAにTCP/IPを導入してインターネット側との相互運用性を確保することが有効である．先行研究では，単一Private LoRaインタフェースにおいて安定したTCP/IP通信を実現した．しかし，Private LoRaは低速であり，パケット損失が生じるとタイムアウトまでの待機や再送により著しく性能が低下する可能性がある．そこで，複数チャネルの利用や冗長送信等により信頼性・スループットの改善を図る目的で，2つのPrivate LoRaインタフェースを併用する構成が考えられる．本稿では，2つのPrivate LoRaインタフェースにおけるTCP/IP通信においてACKの信頼性向上に焦点を当てる．具体的には，TCP ACKを複製して同時送信する手法を提案・実装し，シングルホップおよびマルチホップにおいて，パケット損失が生じる条件下でデータパケットの再送抑制効果と送信コストの観点から有効性を評価する．","subitem_description_type":"Other"}]},"item_4_description_8":{"attribute_name":"論文抄録(英)","attribute_value_mlt":[{"subitem_description":"Low-Power Wide-Area (LPWA) is a major communication technology for the Internet of Things (IoT). Many LPWA-based sensor networks rely on protocols specific to each standard and cannot communicate directly with devices on IP networks. To improve interoperability with Internet applications, a previous study enabled single-hop TCP/IP communication over Private LoRa. However, under the stop-and-wait operation assumed for TCP/IP over Private LoRa, ACK losses hinder the progress of communication as much as data losses and thus become a critical factor directly impacting performance. Therefore, to improve reliability and throughput through multi-channel utilization and redundancy, a configuration that employs two Private LoRa interfaces can be considered. In this study, we construct a multi-hop TCP/IP environment over Private LoRa and improve TCP acknowledgement reliability by duplicating TCP ACKs and transmitting them simultaneously over the two interfaces. Experiments on actual devices under packet-loss conditions in single-hop and multi-hop settings demonstrate improved goodput with fewer TCP data retransmissions, at the cost of additional transmission overhead.","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":"2026-02-24","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"24","bibliographicVolumeNumber":"2026-IOT-72"}]},"relation_version_is_last":true,"weko_creator_id":"80578"},"created":"2026-02-16T07:18:59.235440+00:00","updated":"2026-02-16T07:50:29.250046+00:00"}