Control Mechanisms for Video Streaming over Wireless Links

Network coding techniques for video streaming

Content-Aware Playout and Packet Scheduling

In this paper, we extended the previous work in two ways: first, we performed content-aware playout (to take into account the motion-intensity of the scenes and slow down those scenes with less perceived effect); second, we included packet scheduling (to decrease the delay and minimized distortion);

Joint Power-Playout Control

In this project, we studied video streaming over an interference-limited wireless link. We jointly optimized the power at the transmitter and the playout speed at the receiver, so as to minimize the power consumption and maximize the media quality in the presence of interference. We formulated the problem in a dynamic programming framework, obtained the optimal solution and developed justified heuristics that achieve significant performance gains over benchmark systems.

WiSE Video: Wireless Video using ECN Opportunistic Signaling

In this project, we investigated how to use notification from the network to assist multimedia applications, by providing them with improved (more accurate and earlier) information about the state of the network. In particular, we studied the use of the MECN Channel to assist rate-controlled video streamed over a path that consists of both wired and wireless links.

Other Video-Related Projects