The purpose of this paper is to study the performance of the partial checksum mechanism of UDP-Lite transport protocol compared to the standard UDP protocol in wireless environment in terms of achieved video quality. Video quality is evaluated in PSNR using simulation results achieved with a simulation platform developed in the framework of IST PHOENIX project. The platform offers the necessary components for modelling all relevant ISO/OSI layers for wireless IP video streaming, including partial checksum functionality on transport and data link layers. The achieved gain in video quality in terms of PSNR for IEEE 802.11a simulation model validates that the video streaming benefits of using UDP-Lite transport protocol instead of using regular UDP in wireless channels. The enhancement was 2 - 3 dB in PSNR for AWGN channel and for fading channels the difference was smaller, being 1dB or less. The major conclusion of our study is that the best improvement in video quality using UDP-Lite is achieved in conditions where bit errors appear in very short bursts. Also a minor enhancement using UDP-Lite is achieved in transmission conditions where signal-to-noise ratio in the channel is very low.
|Title of host publication||Proceedings of the Tenth IASTED International Conference on Internet and Multimedia Systems and Applications (IMSA 2006)|
|Number of pages||6|
|Publication status||Published - 2006|
|MoE publication type||Not Eligible|
|Event||10th IASTED International Conference on Internet and Multimedia Systems and Applications - Honolulu, United States|
Duration: 14 Aug 2006 → 16 Aug 2006
Conference number: 10
|Conference||10th IASTED International Conference on Internet and Multimedia Systems and Applications|
|Period||14/08/06 → 16/08/06|
- wireless multimedia
- video quality
Vehkaperä, J., Peltola, J., Huusko, J., Myllyniemi, M., & Majanen, M. (2006). Evaluation of achieved video quality in wireless multimedia transmission using UDP-Lite. In Proceedings of the Tenth IASTED International Conference on Internet and Multimedia Systems and Applications (IMSA 2006) (pp. 182-187). Acta Press.