In-Network Scalable Video Adaption Using Big Packet Protocol

Abstract

The essence of this work is to show how SVC Scalable Video can be adaptated in the network in an effective way, when the Big Packet Protocol (BPP) is used. This demo shows the advantages of BPP, which is a recently proposed transport protocol devised for realtime applications. We will show that in-network adaption can be provided using this new protocol. We show how a network node can change the packets during their transmission, but still present a very usable video stream to the client. The preliminary results show that BPP is a good alternative transport for video transmission.

The Effects of Packet Wash on SVC Video in Limited Bandwidth Environments

“…The average packet size in bytes for each strategy with the selected Foreman video, is as follows: This can have an impact on the Packet Wash, as when it eval- uates estimated throughput figures for the video transmission, the results can be less accurate when compared with fixed size packets, resulting in a chunk elimination process that is slightly less accurate. However, by packing the video based on its structure and having varying packet sizes, we have shown it provides seamless throughput at the receiver [13].…”

“…The SDN controller used information on the characteristics of the video coding together with real-time network conditions to process and transmit the video with a focus on a high Quality of Experience at the client. In [13] we directly compare the performance of network transport protocols, by comparing BPP vs UDP vs TCP QoE metrics, rather than focussing on application layer framing, such as RTP, which is independent of the transport. That work shows that in-network adaption can be provided using our approach.…”

Low Latency Low Loss Media Delivery utilizing In-Network Packet Wash

“…The threshold value Threshold is set to 5 because the I frames (with SIG 1,2, & 3) and the base layer (L0) (with SIG 1-5) should always be received by the clients, in order to be able to play the video with continuity. In order to observe the advantages provided by BPP, we conducted several experiments with BPP, UDP and TCP in our previous work [7,9]. In those experiments, UDP and TCP packets are filled with the maximum number of bytes that the packet can carry.…”

“…The mapping of the SVC layers to chunks in BPP packets has proven to be a good match. We chose a H264 SVC encoder as we can create the necessary layered videos, and this has proven to be an effective way to enhance the performance of video streaming applications, by obtaining continuous delivery, while maintaining guaranteed quality at the receiver [7]. Although more modern codecs such as H266 are available [33], currently there is no publically available SVC implementations.…”

“…In our previous work, we show that the use of SVC with BPP transport is a promising approach [10]. The preliminary test results given in [7,9] show that it is possible to reduce the duration of pauses and the number of lost layers when compared to UDP and TCP. We also showed how an Software Defined Network (SDN) controller can facilitate the Packet Wash mechanism [9].…”