Abstract
The support for multiple high-definition video streams in wireless home networks requires appropriate routing and rate control measures, ascertaining the reasonable links for transmitting each stream and the rate of the video to be delivered over the chosen links. In this paper, we invest the combination of the routing and rate control in a united convex optimization formulation and propose a distributed joint solution based on cross-layer design. We first develop a distortion model which captures both the impact of encoder quantization and packet loss due to network congestion on the overall video quality. Then, the optimal joint rate control and routing scheme is realized by adapting its rate to the time-varying traffic and minimizing the overall network congestion. Furthermore, simulation results are provided, which demonstrate the effectiveness of our proposed joint routing and rate control scheme in the context of wireless home networks.
| Original language | English |
|---|---|
| Pages (from-to) | 950-959 |
| Number of pages | 10 |
| Journal | Computer Journal |
| Volume | 52 |
| Issue number | 8 |
| DOIs | |
| Publication status | Published - 1 Jan 2009 |
Keywords
- High-definition video
- Rate control
- Routing
- Wireless home networks