Streaming Media over a Color Overlay Based on Forward Error Correction Technique

• 作 者: 张晓瑜 沈国斌 李世鹏 钟玉琢
• 机 构: Department of Computer Science and Technology, Tsinghua University, Beijing 100084, China,Microsoft
• 出 处: Tsinghua Science and Technology
• 发表日期: 2004年04期
• 关键词: Streaming colors overlay neighbor streaming multicast Forward bandwidth redundan

The number of clients that receive high-quality streaming video from a source is greatly limited by the application requirements, such as the high bandwidth and reliability. In this work, a method was de-veloped to construct a color overlay, which enables clients to receive data across multiple paths, based on the forward error correction technique. The color overlay enlarges system capacity by reducing the bottle-necks and extending the bandwidth, improves reliability against node failure, and is more resilient to fluctua-tions of network metrics. A light-weight protocol for building the overlay is also presented. Extensive simula-tions were conducted and the results clearly support the claimed advantages.

The number of clients that receive high-quality streaming video from a source is greatly limited by the application requirements, such as the high bandwidth and reliability. In this work, a method was de-veloped to construct a color overlay, which enables clients to receive data across multiple paths, based on the forward error correction technique. The color overlay enlarges system capacity by reducing the bottle-necks and extending the bandwidth, improves reliability against node failure, and is more resilient to tasting of network metrics. A light-weight protocol for building the overlay is also presented. Extensive simula- tions were conducted and the results clearly support the claimed advantages.