1. A hybrid coarse/fine layered multicast scheme based on hierarchical bandwidth inference congestion control
- Author
-
Lin, Jian-Liang, Hwang, Wen-Liang, Pei, Soo-Chang, and Hwang, Jenq-Neng
- Subjects
Bandwidth -- Measurement ,Communications traffic -- Control ,Multicasting ,Bandwidth allocation ,Bandwidth technology ,Business ,Computers ,Electronics ,Electronics and electrical industries - Abstract
Traditional approaches to receiver-driven layered multicast apply coarse-grain layered congestion control, which enables each receiver to adjust its receiving rate to match the available bandwidth. However, this restricts the scalability of fine-grain scalable video coding. In this paper, we present an approach that facilitates bandwidth inference congestion control in a hybrid coarse/fine layered multicast scheme for multimedia delivery. One-way delay trend detection has proven effective in explicitly or implicitly estimating end-to-end available bandwidth. Using a hierarchical layered probing scheme and a delay trend detection method, we have developed a congestion control protocol for fine-grain layered multicast. Combining this protocol with scalable video coding, we present a framework that achieves efficient scalable video streaming over heterogeneous networks. The performance of our hybrid coarse/fine layered multicast scheme is evaluated by network simulations and the video coding efficiency. Index Terms--Available bandwidth estimation, congestion control, hybrid coarse/fine layered multicast.
- Published
- 2008