An IP DiffServ framework for real-time video transmission

被引：0

作者：

Chen, M ^{[1
]}

Wei, G ^{[1
]}

Zhu, XS ^{[1
]}

机构：

[1] S China Univ Technol, Dept Elect & Commun Engn, Guangzhou, Peoples R China

来源：

2003 INTERNATIONAL CONFERENCE ON COMMUNICATION TECHNOLOGY, VOL 1 AND 2, PROCEEDINGS | 2003年

关键词：

DiffServ; scheduling algorithm; MPEG-4;

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：

This paper presents an improved IP differentiated services (DiffServ) framework which is suitable for real-time video transmission. Especially, we investigate MPEG-4 video transmission. Based on the feature of MPEG-4 flow and the extent of network congestion, implements a new DiffServ marking algorithm. In the border router, we propose a new scheduling algorithm, called the Bit-based Weight time Slot Compensate (BWSC) scheduling algorithm, which dynamically adjust the weighted quantum of service. Under the condition that network bandwidth can't guarantee the demand of MPEG-4 real-time transmission, the PSNR comparison or restored MPEG-4 video frame sequence verifys our method has much more better performance than Best-effort network. End-to-end delay and delay jitter also meet the real-time transmission demand in the improved DiffServ network.

引用

页码：1723 / 1726

页数：4

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