DDFC: Decentralized Delay Fluctuation Control Algorithm for IEEE802.11-based Wireless LANs
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- Yamada Hiroyuki
- School of Engineering, The University of Tokyo
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- Morikawa Hiroyuki
- Graduate School of Frontier Sciences, The University of Tokyo
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- Aoyama Tomonori
- Graduate School of Information Science and Technology, The University of Tokyo
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説明
Our target is to support both small delay and small delay fluctuation of real-time traffic in IEEE802.11-based wireless LANs by using a decentralized manner. Several previous researches which aimed at supporting real-time traffic in IEEE802.11 wireless LANs developed decentralized control mechanisms achieving small delay of real-time traffic by differentiating real-time traffic from non-real-time traffic, but they cannot achieve small delay fluctuation because of the burst feature of the IEEE802.11 backoff mechanism. We propose a decentralized control mechanism for suppressing delay fluctuation in IEEE802.11-based wireless LANs. Our main proposal is a new backoff algorithm, called decentralized delay fluctuation control (DDFC), which can suppress delay fluctuation in a fully decentralized manner. DDFC can be easily used in IEEE802.11-based wireless LANs by replacing the current backoff algorithm of IEEE802.11 with DDFC. We examine the performance of DDFC, which is assumed to be used for real-time traffic in an IEEE802.11-based wireless LAN, by simulation. The results of computer simulation confirm that we can achieve not only small delay but also small delay fluctuation of real-time traffic in IEEE802.11-based wireless LANs by controlling real-time traffic according to DDFC.
収録刊行物
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- Information and Media Technologies
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Information and Media Technologies 1 (1), 533-544, 2006
Information and Media Technologies 編集運営会議
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詳細情報 詳細情報について
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- CRID
- 1390282680241972096
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- NII論文ID
- 130000058430
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- ISSN
- 18810896
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可