Peer to peer mobile TV recovery system
Patrik Hummelbrunner, Shelley Buchinger, Werner Robitza, David Selig, Matej Nezveda, Helmut Hlavacs · 2010
Mobile TV is already available for several years. The provided quality is generally attractive but of course, data transfer is not always optimal. It can be subject to disturbances such as fading, noise or interference that are responsible for temporary quality decreases. In Europe, the common way of realising mobile broadcasting is the implementation of the DVB-H standard without return channel. Until now, the embedded forward error correction MPE-FEC represents the main strategy applied to avoid data loss. The contribution of this paper is twofold: We started by measuring the currently experienced DVB-H loss in a typical urban place at different times a day and with antennas of different quality. This experiment led us to the conclusion that losses are affecting seriously obtained video quality when using a standard antenna of a mobile phone. These losses could be avoided (1) by using a high quality antenna or (2) by implementing a simple recovery strategy.