A Hierarchical Packet Pre-Dropping Approach for Improved MPEG-4 Video Transmission over IEEE 802.11e Networks

被引：0
|
作者：
Ke, Chih-Heng [1 ]
Yang, Chong-Yi [2 ]
Chen, Liann-Liang [2 ]
机构：
[1] Natl Quemoy Univ, Dept Comp Sci & Informat Engn, Kinmen, Taiwan
[2] Natl Taiwan Univ Sci & Technol, Dept Elect Engn, Taipei, Taiwan
来源：
PROCEEDINGS OF THE 11TH EAI INTERNATIONAL CONFERENCE ON HETEROGENEOUS NETWORKING FOR QUALITY, RELIABILITY, SECURITY AND ROBUSTNESS | 2015年
关键词：
MPEG-4; 802.11e; video transmission quality; packet pre-dropping;
D O I：
10.4108/eai.19-8-2015.2260892
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 develops a hierarchical packet pre-dropping (HPPD) approach that exploits different methods to process I (intra-coded)/P (predictive-coded) /B (bidirectionally predictive-coded) video frame packets to improve the video transmission quality over IEEE 802.11e Wireless Local Area Networks (WLANs). HPPD refers to the dropping of arriving packets if the preceding video frame packets in the same Group of Pictures (GOP) have been dropped. The simulation results demonstrate that, in terms of PSNR, the proposed scheme outperforms exiting schemes such as EDCA (Enhanced Distributed Channel Access) and adaptive mapping and novel mapping mechanism, suggesting that the resource of access channel in WLANs is not wasted in the transmission of useless video data.
引用
收藏
页码：387 / 391
页数：5
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