Author(s) |
Röder, M., Cardinal, J., Hamzaoui, R. |
Title |
On the complexity of rate-distortion optimal streaming of packetized media |
Abstract |
We consider the problem of rate-distortion optimal streaming of packetized
media with sender-driven transmission over a single-QoS network using feed-
back and retransmissions. For a single data unit, we prove that the problem is
NP-hard and provide efficient branch and bound algorithms that are in prac-
tice much faster than the best known solution. For a group of interdependent
data units, we show how to compute optimal solutions with branch and bound
algorithms. The branch and bound algorithms for a group of data units are
slower than the current state of the art, the heuristic sensitivity adaptation al-
gorithm, but provide a significantly better rate-distortion performance in many
real-world situations. |
Download |
RoCaHa.pdf |