Networked Layered Video

NYU Community Event

Speaker: Dr. Zhengye Liu


Video applications are dominating the Internet traffic. Tremendous challenges and opportunities are introduced in networked video system design, where video and networking techniques are highly coupled and need to be jointly considered. This talk presents two networked video systems with layered video. The first system, named LayerP2P, applies layered video in P2P live streaming. LayerP2P combines layered video, mesh P2P distribution, and a tit-for-tat-like algorithm, in a manner such that a peer contributing more upload bandwidth receives more layers and consequently better video quality. Â LayerP2P provides resource adaptability and built-in incentives in P2P streaming. The second system, named Layer Bargaining, applies layered video in wireless video multicast. Layer Bargaining integrates a layered hybrid ARQ scheme and a game theoretic framework to combat packet loss in wireless multicast. Layered Bargaining achieves a high overall system performance while facilitating fairness among receivers.

About the Speaker

Zhengye Liu is a postdoctoral researcher in Department of Computer Science and Engineering in Polytechnic Institute of New York University. He received Ph.D. in Electrical and Computer Engineering from Polytechnic Institute of New York University in 2009, and B.S. and M.S. in Electronic Engineering from Tsinghua University, Beijing, China, in 2000 and 2003. His research interests are networked multimedia and distributed systems.