QoE Enhancement of Audio-Video Reliable Groupcast with IEEE 802.11aa

被引：5

作者：

Nunome, Toshiro ^{[1
]}

Komatsu, Takuya ^{[1
]}

机构：

[1] Nagoya Inst Technol, Grad Sch Engn, Nagoya, Aichi 4668555, Japan

来源：

IEICE TRANSACTIONS ON COMMUNICATIONS | 2018年 / E101B卷 / 07期

关键词：

wireless LAN; IEEE; 802.11aa; groupcast; audio and video transmission; QoE; MULTICAST; IEEE-802.11; PERFORMANCE; WLANS;

D O I：

10.1587/transcom.2017CQP0002

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

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 ChannelAccess), GCRUnsolicited Retry and GCR BlockACK. 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.

引用

页码：1645 / 1652

页数：8

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