Optimized MAC Protocol for Throughput and Fairness in Multi-hop Adhoc WLANs

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: 2024/12/01

タイトル(英語): Optimized MAC Protocol for Throughput and Fairness in Multi-hop Adhoc WLANs

著者名: Takumi Sanada (The Faculty of Information Science and Technology, Aichi Prefectural University), Xuejun Tian (The Faculty of Information Science and Technology, Aichi Prefectural University), Takashi Okuda (The Faculty of Information Science and Technology, Aichi Prefectural University)

著者名(英語): Takumi Sanada (The Faculty of Information Science and Technology, Aichi Prefectural University), Xuejun Tian (The Faculty of Information Science and Technology, Aichi Prefectural University), Takashi Okuda (The Faculty of Information Science and Technology, Aichi Prefectural University)

キーワード: WLANs，multi-hop，MAC，Backoff，throughput

要約(英語): Wireless local area networks (WLANs) have become increasingly popular and widely deployed. The medium access control (MAC) protocol is one of the important technologies in WLANs and directly affects communication efficiency. In this paper, we focus on the MAC protocol and propose a novel protocol in which network nodes dynamically optimize their backoff process to achieve high throughput in multi-hop adhoc networks. The distributed MAC protocol has the advantage of not requiring infrastructure such as an access point. However, under high traffic loads, the total throughput significantly decreases due to the hidden node problem, which requires improvement. Through theoretical analysis, we find that the average idle interval can represent the current network traffic load and can be used together with estimated number of neighbor nodes and hidden nodes for setting optimal contention window (CW). Through simulation comparisons with a conventional method, we show that our scheme can greatly enhance the throughput and the fairness in the saturated case.

本誌: 電気学会論文誌C（電子・情報・システム部門誌） Vol.144 No.12 （2024） 特集：電気・電子・情報関係学会東海支部連合大会

本誌掲載ページ: 1164-1171 p

原稿種別: 論文／英語

電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejeiss/144/12/144_1164/_article/-char/ja/