Clayman, S; Sayit, M; (2022) The Effects of Packet Wash on SVC Video in Limited Bandwidth Environments. In: 2022 IEEE 23rd International Conference on High Performance Switching and Routing (HPSR). (pp. pp. 17-22). IEEE: Taicang, Jiangsu, China.

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Abstract

This paper describes the effects of the Packet Wash process on the transmission of layered SVC video streams. We show how the packet size is adapted when using a number of different packing strategies, that map the video data into the BPP packets, and discuss the relationship between the packing strategies on the sender side and the chunk removal in the washing process. We demonstrate how the packing strategy causes different impacts on the number of and the sizes of the washed chunks. As the bandwidth reduces, more of the chunks in a packet get washed away. Although the receiver gets packets that are much smaller than those transmitted by the sender, it is still able to play video with a high QoE as zero packets are dropped. This traffic engineering enables a direct implementation of an in-network video adaption scheme. The experimental evaluation highlights that the effects of Packet Wash become more obvious in environments where there is limited bandwidth.

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