The adaptive layer-based scheduling system for embedded real-time transmission on scalable multimedia stream

被引：0

作者：

Tseng, Chia-Ying ^{[1
]}

机构：

[1] Tatung Univ, Dept Comp Sci & Engn, 40 Chungshan Rd,Sec 3, Taipei, Taiwan

来源：

INTERNATIONAL JOURNAL OF EMBEDDED SYSTEMS | 2006年 / 2卷 / 3-4期

关键词：

real-time scheduling; embedded system; streaming media; video processing;

D O I：

暂无

中图分类号：

TP3 [计算技术、计算机技术];

学科分类号：

0812 ;

摘要：

With the recent development in compression and network technology, stream media has been adopted in internet and intranet. Application of stream media technology will play a key role in future development of fast networks. Original video/audio data will be stored in the devices for storage after having been pre-compressed by a video/audio compression algorithm. When clients have requirements, the stream server retrieves the video/audio data from the storage devices through the network. This paper discusses a simple and effective real-time scheduling algorithm, adaptive Layer-Based Least-Laxity-First (LB-LLF) scheduling algorithm, to improve the output quality of video/audio on a network and to achieve synchronised playback effect. The proposed algorithm considered real-time constraint, unequal priorities of scalable media stream in different layers, and a good tradeoff between coding efficiency and drifting error. This guarantees the effective usage of available channel bandwidth and the better quality of playback in client.

引用

页码：222 / 227

页数：6

共 10 条

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