In this paper, we propose a constant quality rate allocation algorithm for MPEG-4 FGS (Fine Granularity Scalability) coded video sequences. The rate allocation problem is formulated as a constrained minimization of quality fluctuation. The minimization is solved using a novel composite rate distortion analysis. For a set of video frames, a composite rate distortion curve is first computed and t...

It is well known that Shannon's separation result does not hold under nite computation or nite delay constraints, thus joint source-channel coding is of great interest for practical reasons. For progressive source-channel coding systems, eecient codes have been proposed for feed forward channels 1] and the important problem of rate allocation between the source and channel codes has been solved...

A novel radio resource management (RRM) scheme for the support of packet-switched transmission in cellular CDMA systems is proposed by jointly considering the physical, link, and network layer characteristics. The proposed resource management scheme is comprised of a combination of power distribution, rate allocation, service scheduling, and connection admission control. Power distribution allo...

When multiple video streams share a wireless network, careful rate allocation is needed to prevent congestion, as well as to balance the video qualities among the competing streams. In this paper, we present a unified optimization framework for video rate allocation over wireless networks. Our framework applies to both unicast and multicast sessions, and accommodates both scalable and nonscalab...

We address the problem of joint path selection and rate allocation in multipath wireless streaming, in order to optimize a media specific quality of service. We leverage on the existence of multiple parallel wireless services, in order to enhance the received video quality at a wireless client. An optimization problem is proposed, which aims at minimizing a video distortion metric based on sequ...