TR-IIS-05-014    Fulltext

Video Delivery on Content Networks

Ray-I Chang, Jan-Ming Ho


Abstract. Behaviors of Internet services are changing from computation sharing to content sharing. Due to these changes, the weakness of conventional network architecture and its inadequate in service support are apparent. To resolve these problems, content networks are introduced. A content network tries to reorganize
the Internet by a content-centric way to improve the system's scalability and to protect the system from distributed denial-of-service attacks. It was taken into one of the most important platform of network applications (such as e-commerce) in the future. In this paper, we investigate some key technology issues of content delivery of streaming multimedia, which has both the biggest challenge and opportunity. Different from small-sized hypertext and image, the growing-popular multimedia content has huge size. It is impractical to be cached entirely and requires to be partitioned into small portions for delivery from multi-servers. As a multimedia
content is VBR (variable-bit-rate) and requires guaranteed QoS (quality-of-service), each serving-peer needs a good delivery schedule for real-time streaming. In this paper, we focus only on the multi-servers caching/streaming problem of multimedia delivery. Without addressing content indexing and routing, the proposed method can be applied for different content networks.