{"updated":"2025-01-20T17:21:02.629517+00:00","links":{},"id":148181,"created":"2025-01-19T00:23:12.200992+00:00","metadata":{"_oai":{"id":"oai:ipsj.ixsq.nii.ac.jp:00148181","sets":["581:8417:8419"]},"path":["8419"],"owner":"11","recid":"148181","title":["無線メッシュ網のためのCSMAの仮想多チャネル化"],"pubdate":{"attribute_name":"公開日","attribute_value":"2016-02-15"},"_buckets":{"deposit":"6fd3fc0d-762a-4e10-92d8-454cf4e2e741"},"_deposit":{"id":"148181","pid":{"type":"depid","value":"148181","revision_id":0},"owners":[11],"status":"published","created_by":11},"item_title":"無線メッシュ網のためのCSMAの仮想多チャネル化","author_link":["238732","238734","238735","238733"],"item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"無線メッシュ網のためのCSMAの仮想多チャネル化"},{"subitem_title":"A Virtual Multi-channeled CSMA for Wireless Mesh Networks","subitem_title_language":"en"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"[特集：ネットワークサービスと分散処理] 無線メッシュ網，IEEE802.11，CSMA，隠れ端末問題，RTS/CTS","subitem_subject_scheme":"Other"}]},"item_type_id":"2","publish_date":"2016-02-15","item_2_text_3":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"和歌山大学大学院システム工学研究科"},{"subitem_text_value":"和歌山大学システム工学部"}]},"item_2_text_4":{"attribute_name":"著者所属(英)","attribute_value_mlt":[{"subitem_text_value":"Graduate School of Systems Engineering, Wakayama University","subitem_text_language":"en"},{"subitem_text_value":"Faculty of Systems Engineering, Wakayama 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/148181/files/IPSJ-JNL5702008.pdf","label":"IPSJ-JNL5702008.pdf"},"date":[{"dateType":"Available","dateValue":"2018-02-15"}],"format":"application/pdf","billing":["billing_file"],"filename":"IPSJ-JNL5702008.pdf","filesize":[{"value":"1.6 MB"}],"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":"d993d870-c7c7-41a4-9a13-709728a2fd5e","displaytype":"detail","licensetype":"license_note","license_note":"Copyright (c) 2016 by the Information Processing Society of Japan"}]},"item_2_creator_5":{"attribute_name":"著者名","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"ネンホァンマラー, ティッパワン"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"吉廣, 卓哉"}],"nameIdentifiers":[{}]}]},"item_2_creator_6":{"attribute_name":"著者名(英)","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Thippavanh, Nenhuangmala","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Takuya, Yoshihiro","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":"無線メッシュ網は，固定基地局を無線通信により接続したネットワークである．無線メッシュ網のMACプロトコルとして，IEEE802.11等のCSMAに基づいた規格が用いられることが多いが，隠れ端末の影響により，十分な通信性能が達成できないという問題がある．一方，単一の周波数チャネルを時分割することで送信フレームの衝突を防ぐTDMAに基づいた無線メッシュ網も議論されているが，ノード間の正確なタイミング同期が必要であり，実用化は容易ではない．そこで本論文では，単一周波数チャネルを時分割することで仮想的に多チャネル化し，各仮想チャネル内でIEEE802.11を動作させる新たなハイブリッドMACプロトコルを提案する．提案手法を適切なスケジューリング法と併用することにより，隠れ端末問題を生じない効率的な無線メッシュ網を実現できる．提案手法は相応の誤差を含んだタイミング同期でも動作するため現実的であり，また，IEEE802.11を時分割して用いるため，既存のIEEE802.11との親和性が高く，2.4GHz帯や5GHz帯を用いた無線メッシュ網を実現できる．","subitem_description_type":"Other"}]},"item_2_description_8":{"attribute_name":"論文抄録(英)","attribute_value_mlt":[{"subitem_description":"WMNs (Wireless Mesh Networks) have been deeply studied as a wireless network infrastructure. Although many studies adopt CSMA-based MAC protocols such as IEEE802.11, they have not achieved sufficient communication performance for practical use because of the hidden terminal problem. TDMA, which divide a single frequency channel into small slots, also has been studied as a tool toward collision-less high-speed WMNs, but they have a practical difficulty; they require accurate time synchronization. In this paper, we propose a new MAC protocol in which we divide a single frequency channel of IEEE802.11 into several virtual channels via coarse time division. With a suitable scheduling algorithm that is designed for our protocol, our MAC protocol works without collisions due to the hidden terminal problem. Our method is practical because it works under loose synchronization that involves considerable time drifts, and because it can coexist with the popular IEEE802.11 devices on the 2.4GHz or 5GHz band.","subitem_description_type":"Other"}]},"item_2_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicPageEnd":"448","bibliographic_titles":[{"bibliographic_title":"情報処理学会論文誌"}],"bibliographicPageStart":"438","bibliographicIssueDates":{"bibliographicIssueDate":"2016-02-15","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"2","bibliographicVolumeNumber":"57"}]},"relation_version_is_last":true,"weko_creator_id":"11"}}