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.
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Index Terms
- Enabling near real-time central control for live video delivery in CDNs
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Enabling near real-time central control for live video delivery in CDNs
SIGCOMM '14: Proceedings of the 2014 ACM conference on SIGCOMMUser-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, ...
Practical, Real-time Centralized Control for CDN-based Live Video Delivery
SIGCOMM '15: Proceedings of the 2015 ACM Conference on Special Interest Group on Data CommunicationLive video delivery is expected to reach a peak of 50 Tbps this year. This surging popularity is fundamentally changing the Internet video delivery landscape. CDNs must meet users' demands for fast join times, high bitrates, and low buffering ratios, ...
Practical, Real-time Centralized Control for CDN-based Live Video Delivery
SIGCOMM'15Live video delivery is expected to reach a peak of 50 Tbps this year. This surging popularity is fundamentally changing the Internet video delivery landscape. CDNs must meet users' demands for fast join times, high bitrates, and low buffering ratios, ...
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