Title :
Failure-Aware, Open-Loop, Adaptive Video Streaming With Packet-Level Optimized Redundancy
Author :
Andreopoulos, Yiannis ; Keralapura, Ram ; Van der Schaar, Mihaela ; Chuah, Chen-Nee
Author_Institution :
Dept. of Electr. Eng., California Univ., Los Angeles, CA
Abstract :
A plethora of coding and streaming mechanisms have been proposed for real-time multimedia transmission over the Internet. However, most proposed mechanisms rely only on global (e.g. based on end-to-end measurements), delayed (at least by the round-trip-time), or statistical (often based on simplistic network models) information available about the network state. Based on recently-proposed state-of-the-art open-loop video coding schemes, we propose a new integrated streaming and routing framework for robust and efficient video transmission over networks exhibiting path failures. Our approach explicitly takes into account the network dynamics, path diversity, and the modeled video distortion at the receiver side to optimize the packet redundancy and scheduling. In the derived framework, multimedia streams can be adapted dynamically at the video server based on instantaneous routing-layer information or failure-modeling statistics. The performance of our integrated application and network-layer method is simulated against equivalent approaches that are not optimized based on routing-layer feedback and distortion modeling, and the obtained gains in video quality are quantified
Keywords :
video coding; video servers; video streaming; adaptive video streaming; failure-modeling statistics; multimedia stream; network-layer method; open-loop video coding scheme; packet-level optimized redundancy; real-time multimedia transmission; routing-layer information; video distortion; video quality; video server; video transmission; Dynamic scheduling; Feedback; Internet; Network servers; Optimization methods; Robustness; Routing; Statistics; Streaming media; Video coding; Network-layer feedback; open-loop scalable video coding; predicting network availability; routing-layer adaptation; video transmission under path failures;
Journal_Title :
Multimedia, IEEE Transactions on
DOI :
10.1109/TMM.2006.884607