IEICE Transactions on Communications
Online ISSN : 1745-1345
Print ISSN : 0916-8516

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QoE Enhancement of Audio-Video Reliable Groupcast with IEEE 802.11aa
Toshiro NUNOMETakuya KOMATSU
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ジャーナル 認証あり 早期公開

論文ID: 2017CQP0002

この記事には本公開記事があります。
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This paper enhances the QoE of audio and video multicast transmission over a wireless LAN by means of reliable groupcast schemes. We use GCR (GroupCast with Retries) Unsolicited Retry and GCR Block ACK as reliable groupcast schemes; they are standardized by IEEE 802.11aa. We assume that a wireless access point transmits audio and video streams to several terminals connected to the access point by groupcast. We compare three schemes: Groupcast with EDCA (Enhanced Distributed Channel Access), GCR Unsolicited Retry and GCR Block ACK. We perform computer simulations under various network conditions to assess application-level QoS and evaluate QoE by a subjective experiment. As a result, we find that the most effective scheme depends on network conditions.

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© 2018 The Institute of Electronics, Information and Communication Engineers
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