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  1. 研究論文

Guaranteeing QoE in Audio-Video Transmission by IEEE 802.11e HCCA

https://nitech.repo.nii.ac.jp/records/5394
https://nitech.repo.nii.ac.jp/records/5394
5e729c44-ec88-4b59-8a1c-0be4b3374f4d
名前 / ファイル ライセンス アクション
E91-A_1551.pdf 本文_fulltext (488.0 kB)
Copyright (c) 2008 IEICE http://search.ieice.org/index.html
Item type 学術雑誌論文 / Journal Article(1)
公開日 2013-06-25
タイトル
タイトル Guaranteeing QoE in Audio-Video Transmission by IEEE 802.11e HCCA
言語 en
言語
言語 eng
資源タイプ
資源タイプ識別子 http://purl.org/coar/resource_type/c_6501
資源タイプ journal article
著者 Bin, Muhamad Noh Zul Azri

× Bin, Muhamad Noh Zul Azri

en Bin, Muhamad Noh Zul Azri

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Suzuki, Takahiro

× Suzuki, Takahiro

en Suzuki, Takahiro

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Tasaka, Shuji

× Tasaka, Shuji

en Tasaka, Shuji

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著者別名
姓名 田坂, 修二
書誌情報 en : IEICE transactions on fundamentals of electronics, communications and computer sciences

巻 E91-A, 号 7, p. 1551-1561, 発行日 2008-07-01
出版者
出版者 Institute of Electronics, Information and Communication Engineers
言語 en
ISSN
収録物識別子タイプ ISSN
収録物識別子 0916-8508
item_10001_source_id_32
収録物識別子タイプ NCID
収録物識別子 AA10826239
出版タイプ
出版タイプ VoR
出版タイプResource http://purl.org/coar/version/c_970fb48d4fbd8a85
内容記述
内容記述タイプ Other
内容記述 This paper studies packet scheduling schemes with QoE (user-level QoS) guarantee for audio-video transmission in a wireless LAN with HCF controlled channel access (HCCA) of the IEEE 802.11e MAC protocol. We first propose the static scheduling (SS) scheme, which grants adjustable transmission opportunity (TXOP) duration for constant bit rate (CBR) traffic. The SS scheme can determine the minimum TXOP duration capable of guaranteeing high QoE; it can maximize the number of admitted flows. As the burstiness of variable bit rate (VBR) traffic cannot be absorbed by the SS scheme, we also propose the multimedia priority dynamic scheduling (MPDS) scheme, which can absorb the burstiness through allocating additional TXOP duration. We then compare the SS scheme, the MPDS scheme, and the reference scheduler (TGe scheme) in terms of application-level QoS and user-level QoS (QoE). Numerical results show that in the SS scheme, the QoE can be kept relatively higher even when the TXOP duration is reduced in the case of video with the I picture pattern; this implies that more flows can be admitted. In the case of video with the IPPPPP picture pattern, which has the VBR characteristic more remarkably, reducing the TXOP duration according to the SS scheme will deteriorate the QoS level. In this case, the MPDS scheme performs better when the number of multimedia stations is small. However, the performance of the MPDS scheme deteriorates with the increase of the number of multimedia stations, though the results are comparable to or even better than those of the SS and TGe schemes.
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