||Stankovic, V., Hamzaoui, R., Xiong, Z.
||Live video streaming over packet networks and wireless channels
||The transmission of live video over noisy channels requires
very low end-to-end delay. Although automatic repeat request
ensures lossless transmission, its usefulness to live
video streaming is restricted to short connections because
of the unbounded retransmission latency. An alternative is
to use forward error correction (FEC). Since finding an optimal
error protection strategy can be time expensive, FEC
systems are commonly designed for the worst case condition
of the channel, which limits the end-to-end performance.
We study the suitability of two scalable FEC-based
systems to the transmission of live video over packet networks.
The first one uses Reed-Solomon codes and is appropriate
for the Internet. The second one uses a product
channel code and is appropriate for wireless channels. We
show how fast and robust transmission can be achieved by
exploiting a parametric model for the distortion-rate curve
of the source coder and by using fast joint source-channel
allocation algorithms. Experimental results for the 3D set
partitioning in hierarchical tree video coder show that the
systems have good reconstruction quality even in severe channel
conditions. Finally, we compare the performance of the
systems to the state-of-the-art for video transmission over