Prioritized Service for High-Speed Terminals in Wireless LANs

  • HIRAYAMA Ryo
    Faculty of Computer Science and System Engineering, Okayama Prefectural University
  • SATAKE Shinsuke
    Faculty of Computer Science and System Engineering, Okayama Prefectural University
  • INAI Hiroshi
    Faculty of Computer Science and System Engineering, Okayama Prefectural University

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Other Title
  • 複数の通信速度が混在する無線LANにおける高速端末優先処理
  • フクスウ ノ ツウシン ソクド ガ コンザイスル ムセン LAN ニ オケル コウソク タンマツ ユウセン ショリ

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Description

In a wireless LAN, due to a radio wave condition and/or coexistence of several specifications, there exist some terminals of various transmission rates. Under the standard IEEE 802.11b/g protocol, all the terminals can achieve the same throughput since they equally obtain the channel access opportunities. In such a case, high-speed terminals cannot show their transmission abilities. To solve that problem, this paper proposes a channel access method which provides the access privileges to the high-speed terminals. Under an employment of the proposed method, the access point rejects the RTS frames origined from the low-speed terminals in a certain condition. Via simulation, the proposed method achieves appropriate throughput to each terminal. Furthermore, as compared with the standard and previously proposed methods, our method provides smaller file transfer delay for low-speed terminals.

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