Energy-efficient cross-layer rate allocation for multi-source streaming over ad hoc networks

被引：0
|
作者：
Yang, Yixin [1 ]
Sun, Lifeng [1 ]
Liang, Ke [1 ]
Zhong, Yuzhuo [1 ]
Yang, Shiqiang [1 ]
机构：
[1] Tsinghua Univ, Dept Comp Sci & Technol, Beijing 100084, Peoples R China
来源：
2006 IMACS: MULTICONFERENCE ON COMPUTATIONAL ENGINEERING IN SYSTEMS APPLICATIONS, VOLS 1 AND 2 | 2006年
基金：
中国国家自然科学基金;
关键词：
cross-layer; power; ad hoc;
D O I：
暂无
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
In this paper, we study the case that a number of cameras capture and transfer video sequences to a receiver over ad hoc networks, just as surveillance scenarios. In order to prolong system lifetime and improve the video qualities, we propose a dynamic rate allocation scheme using crosslayer techniques. The allocation is performed at the receiver of the video streams and the decision is based on a rate-power model for network transmission and a rate-distortion model of video. Experiment result shows that the proposed scheme promotes the average PSNR by 0.8-3.0 dB without shortening the system lifetime, or prolongs system lifetime by 12%-50% without cutting down the overall PSNR.
引用
收藏
页码：1407 / +
页数：2
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