 |
|
|||
| Authors: | Jürg Meierhofer, George Fankhauser |
| Group: | Communication Systems |
| Type: | Inproceedings |
| Title: | Error-Resilient, Tagged Video Stream Coding with Wireless Data Link Control |
| Year: | 1999 |
| Month: | September |
| Pub-Key: | MeFa99 |
| Book Titel: | Wireless Personal Multimedia Communications (WPMC99) |
| Pages: | 306-311 |
| Abstract: | Abstract: In personal wireless multimedia systems, transmission of interactive video is difficult. This is because video in high quality still requires a considerable amount of bandwidth, the
error patterns on radio links are bursty and coded video traffic itself shows a variable bit-rate behavior. We describe a wireless video transmission system that has been developed from scratch.
The goal was to provide users with high-speed and high quality video transmission for interactive applications. Our system spans many aspects from hardware implementations for the physical layer to applications development for user trials. Special emphasis is put on the wavelet-based video compression method and the link layer error control scheme which interact closely through well-defined interfaces to implement a joint source/channel coding system. The link and medium access layers offer several channel coding and scheduling methods with a range of service characteristics in terms of error probability, throughput, and delay. These service levels are selected by the video coding system with the knowledge of how important different components of the video stream are. Keywords: Joint source/channel coding, layered video streaming, error-resilience, link layer error control, wireless networks, channel model, wavelet-based video compression. pdf-file |
| Remarks: | Wireless Personal Multimedia Communications (WPMC99), Amsterdam |
| Location: | Amsterdam |
| Resources: | [BibTeX] |
