Enabling near real-time central control for live video delivery in CDNs
Abstract
User-created live video streaming is marking a fundamental shift in the workload of live video delivery. However, live-video-specific challenges and the viral nature of user-created content makes it difficult for current CDNs to deliver 1) high-quality, 2) highly-scalable, and 3) highly-responsive service. We present the design and implementation of VDN, a new control plane for CDNs designed to optimize the delivery of live streams within the CDN. VDN satisfies these requirements by using two approaches: 1) optimizing directly for video quality (not just throughput) and 2) combining centralized control with local control, allowing VDN to adapt to traffic dynamics and network failures at fine timescales.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Aug 17, 2014
- Source ID
- 10.1145/2740070.2631444
Entities
People
- David Naylor
- Dongsu Han
- Hui Zhang
- Junchen Jiang
- Jungah Hong
- Matthew K. Mukerjee
- Srinivasan Seshan
Organizations
- Carnegie Mellon University
- KAIST
- Ministry of Science, ICT and Future Planning
- National Research Foundation of Korea
- National Science Foundation