WOWMOM '06 Proceedings of the 2006 International Symposium on on World of Wireless, Mobile and Multimedia Networks
A novel differentiated retransmission scheme for MPEG video streaming over wireless links
International Journal of Wireless and Mobile Computing
Feasibility of QoS control based on QoS mapping over IP networks
Computer Communications
Impact of packet size on the temporal quality of video transmission over wired-to-wireless network
Proceedings of the 6th International Conference on Advances in Mobile Computing and Multimedia
Content-aware error-resilient transcoding using prioritized intra-refresh for video streaming
Journal of Visual Communication and Image Representation
A novel robust video transmission scheme for error resilient transcoding
IITA'09 Proceedings of the 3rd international conference on Intelligent information technology application
Performance of video quality in dual-branch diversity based SR-ARQ over Rayleigh fading channel
Proceedings of the 7th International Conference on Advances in Mobile Computing and Multimedia
An efficient error-robust wireless video transmission using link-layer FEC and low-delay ARQ schemes
Journal of Mobile Multimedia
Wireless Personal Communications: An International Journal
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Video communications over wireless networks often suffer from various errors. A novel video transmission architecture is proposed to meet the low-delay and error-robust requirement of wireless video communications. This architecture uses forward error correction coding and automatic repeat request (ARQ) protocol to provide efficient bandwidth access from wireless link. In order to reduce ARQ delay, a video proxy server is implemented at the base station. This video proxy not only reduces the ARQ response time, but also provides error-tracking functionality. The complexity of this video proxy server is analyzed. Experiment shows that about 8.9% of the total macroblocks need to be transcoded under a random-error condition of 10-3 error probability. Because H.263 is the most popular video coding standard for video communication, we use it as an experiment platform. A data-partition scheme is also used to enhance error-resilience performance. This architecture is also suitable for various motion-compensation-based standards like H.261, H.263 series, MPEG-1, MPEG-2, MPEG-4, and H.264. For "Foreman" sequence under a random-error condition of 10-3 error probability, luminance peak signal-to-noise ratio decreases only 0.35 dB, on average.