Hybrid quality adaptation mechanism for layered multicast over the internet

✍ Scribed by Bu-Sung Lee; Chai-Kiat Yeo; Ruijin Fu

• Book ID: 102974348
• Publisher: Elsevier Science
• Year: 2002
• Tongue: English
• Weight: 679 KB
• Volume: 25
• Category: Article
• ISSN: 1084-8045
• DOI: 10.1006/jnca.2002.0127

✦ Synopsis

The use of multicast for distribution of real-time video over the Internet has received greater attention over the past few years. Unfortunately, a major challenge to its wide usage is the heterogeneity of networks and receivers. In this paper we proposed a mechanism called Hybrid Quality Adaptation (HQA) for multicasting layered MPEG-2 video. The receiver will subscribe to the number of layers based on their network and end-system resources. On the other hand, the video server adjusts the transmission characteristics of each layer to try and accommodate the requirements of the majority of the receivers. A prototype layered MPEG-2 multicast system, using HQA, has been successfully developed.