TY - GEN
T1 - Unified framework for optimal video streaming
AU - De Cuetos, Philippe
AU - Ross, Keith W.
PY - 2004
Y1 - 2004
N2 - We study the problem of how to stream layered video (live and stored) over a lossy packet network in order to optimize the video quality that is rendered at the receiver. We present a unified framework that combines scheduling, FEC error protection, and decoder error concealment. In the context of the unified framework, we study both the case of a channel with perfect state information and the case of a channel with imperfect state information (delayed or lost feedback). We adapt the theory of infinite-horizon, average-reward Markov decision processes (MDPs) with average-cost constraints to the problem. Based on simulations with MPEG-4 FGS video, we show that (1) optimizing together scheduling, FEC error correction and error concealment improves performance significantly and (2) policies with static error protection give near-optimal performance. We also find that degradations in quality for a channel with imperfect state information are small; thus our MDP approach is suitable for networks with long end-to-end delays.
AB - We study the problem of how to stream layered video (live and stored) over a lossy packet network in order to optimize the video quality that is rendered at the receiver. We present a unified framework that combines scheduling, FEC error protection, and decoder error concealment. In the context of the unified framework, we study both the case of a channel with perfect state information and the case of a channel with imperfect state information (delayed or lost feedback). We adapt the theory of infinite-horizon, average-reward Markov decision processes (MDPs) with average-cost constraints to the problem. Based on simulations with MPEG-4 FGS video, we show that (1) optimizing together scheduling, FEC error correction and error concealment improves performance significantly and (2) policies with static error protection give near-optimal performance. We also find that degradations in quality for a channel with imperfect state information are small; thus our MDP approach is suitable for networks with long end-to-end delays.
UR - http://www.scopus.com/inward/record.url?scp=8344254389&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=8344254389&partnerID=8YFLogxK
U2 - 10.1109/INFCOM.2004.1354562
DO - 10.1109/INFCOM.2004.1354562
M3 - Conference contribution
AN - SCOPUS:8344254389
SN - 0780383559
T3 - Proceedings - IEEE INFOCOM
SP - 1479
EP - 1489
BT - IEEE INFOCOM 2004 - Conference on Computer Communications - Twenty-Third Annual Joint Conference of the IEEE Computer and Communications Societies
T2 - IEEE INFOCOM 2004 - Conference on Computer Communications - Twenty-Third Annual Joint Conference of the IEEE Computer and Communications Societies
Y2 - 7 March 2004 through 11 March 2004
ER -