無線LANにおけるチャネル状況に応じたレートアダプテーション方式

カテゴリ: 論文誌(論文単位)

グループ名: 【C】電子・情報・システム部門

発行日: 2011/07/01

タイトル(英語): A Rate Adaptation Scheme According to Channel Conditions in Wireless LANs

著者名: 沼本　大輔（岡山県立大学 情報工学部），稲井　寛（岡山県立大学 情報工学部）

著者名(英語): Daisuke Numoto (Faculty of Computer Science and System Engineering, Okayama Prefectural University), Hiroshi Inai (Faculty of Computer Science and System Engineering, Okayama Prefectural University)

キーワード: 無線LAN，レートアダプテーション，レートスイッチ，CSMA/CA　　wireless LANs，rate adaptation，rate switch，CSMA/CA

要約(英語): Rate adaptation in wireless LANs is to select the most suitable transmission rate automatically according to channel condition. If the channel condition is good, a station can choose a higher transmission rate, otherwise, it should choose a lower but noise-resistant transmission rate. Since IEEE 802.11 does not specify any rate adaptation scheme, several schemes have been proposed. However those schemes provide low throughput or unfair transmission opportunities among stations especially when the number of stations increases. In this paper, we propose a rate adaptation scheme under which the transmission rate quickly closes and then stays around an optimum rate even in the presence of a large number of stations. Via simulation, our scheme provides higher throughput than existing ones and almost equal fairness.

本誌: 電気学会論文誌C（電子・情報・システム部門誌） Vol.131 No.7 （2011） 特集：平成22年電気学会電子・情報・システム部門大会

本誌掲載ページ: 1347-1354 p

原稿種別: 論文／日本語

電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejeiss/131/7/131_7_1347/_article/-char/ja/