Traffic Prioritization of H.264/SVC Video over 802.11e Ad Hoc Wireless Networks

被引：0
|
作者：
Fiandrotti, Attilio [1 ]
Gallucci, Dario [1 ]
Masala, Enrico [1 ]
Magli, Enrico [2 ]
机构：
[1] Politecn Torino, Dipartimento Automat & Informat, I-10129 Turin, Italy
[2] Politecn Torino, Dipartimento Elettr, Turin, Italy
来源：
2008 PROCEEDINGS OF 17TH INTERNATIONAL CONFERENCE ON COMPUTER COMMUNICATIONS AND NETWORKS, VOLS 1 AND 2 | 2008年
关键词：
D O I：
暂无
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：
The H.264/SVC video codec extends the H.264/AVC standard with scalability features. In this paper we introduce a traffic prioritization algorithm suitable for the transmission of both H.264/SVC and H.264/AVC video over 802.11e ad hoc wireless networks. The proposed algorithm exploits the traffic prioritization capabilities offered by 802.11e to provide better protection to the most perceptually important parts of a video while achieving efficient network resource usage. We evaluate the algorithm by simulating video transmissions in an ad hoc network scenario. Results show that the H.264/SVC codec particularly benefits from the proposed algorithm, which enables a graceful video quality degradation in congested network conditions, as well as PSNR gains up to 2 dB with respect to the H.264/AVC codec using the same amount of network resources.
引用
收藏
页码：738 / +
页数：2
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