Error and Congestion Resilient Video Streaming over Broadband Wireless
AbstractIn this paper, error resilience is achieved by adaptive, application-layer rateless channel coding, which is used to protect H.264/Advanced Video Coding (AVC) codec data-partitioned videos. A packetization strategy is an effective tool to control error rates and, in the paper, source-coded data partitioning serves to allocate smaller packets to more important compressed video data. The scheme for doing this is applied to real-time streaming across a broadband wireless link. The advantages of rateless code rate adaptivity are then demonstrated in the paper. Because the data partitions of a video slice are each assigned to different network packets, in congestion-prone wireless networks the increased number of packets per slice and their size disparity may increase the packet loss rate from buffer overflows. As a form of congestion resilience, this paper recommends packet-size dependent scheduling as a relatively simple way of alleviating the buffer-overflow problem arising from data-partitioned packets. The paper also contributes an analysis of data partitioning and packet sizes as a prelude to considering scheduling regimes. The combination of adaptive channel coding and prioritized packetization for error resilience with packet-size dependent packet scheduling results in a robust streaming scheme specialized for broadband wireless and real-time streaming applications such as video conferencing, video telephony, and telemedicine. View Full-Text
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Al-Jobouri, L.; Ali, I.A.; Fleury, M.; Ghanbari, M. Error and Congestion Resilient Video Streaming over Broadband Wireless. Computers 2015, 4, 113-141.
Al-Jobouri L, Ali IA, Fleury M, Ghanbari M. Error and Congestion Resilient Video Streaming over Broadband Wireless. Computers. 2015; 4(2):113-141.Chicago/Turabian Style
Al-Jobouri, Laith; Ali, Ismail A.; Fleury, Martin; Ghanbari, Mohammed. 2015. "Error and Congestion Resilient Video Streaming over Broadband Wireless." Computers 4, no. 2: 113-141.