An Application Layer Multicast Streaming Media System

Abstract

Nowadays, many application layer multicast protocols (ALM) in which Multiple Description Coding (MDC) is introduced have been proved to be more scalable and stable than traditional multicast protocols in practical environment. In this paper, we propose an ALM system called SMSD based on synchronized MDC for streaming media to address the synchronization of available descriptions. SMSD focuses on the video quality, Simulations implemented on Internetlike topology indicate that SMSD achieves higher video quality, lower control traffic than traditional ALM protocols, and comparable latency, link stress and robustness are achieved as well.