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

Abstract

This paper presents new techniques and mechanisms for carrying streams of layered video using Scalable Video Coding (SVC) from servers to clients, utilizing the Packet Wash mechanism which is part of the Big Packet Protocol (BPP). BPP was designed to handle the transfer of packets for high-bandwidth, low-latency applications, aiming to overcome a number of issues current networks have with high precision services. One of the most important advantages of BPP is that it allows the dynamic adaption of packets during transmission. BPP uses Packet Wash to reduce the payload, and the size of a packet by eliminating specific chunks. For video, this means cutting out specific segments of the transferred video, rather than dropping packets, as happens with UDP based transmission, or retrying the transmission of packets, as happens with TCP. The chunk elimination approach is well matched with SVC video, and these techniques and mechanisms are utilized and presented. An evaluation of the performance is provided, plus a comparison of using UDP or TCP, which are the other common approaches for carrying media over IP. Our main contributions are the mapping of SVC video into BPP packets to provide low latency, low loss delivery, which provides better QoE performance than either UDP or TCP, when using those techniques and mechanisms. This approach has proved to be an effective way to enhance the performance of video streaming applications, by obtaining continuous delivery, while maintaining guaranteed quality at the receiver. In this work we have successfully used an H264 SVC encoded video for layered video transmission utilizing BPP, and can demonstrate video delivery with low latency and low loss in limited bandwidth environments.

Congestion and throughput optimization protocol for providing better quality of service and experience

“…In this section, the performance of the CTOP model and the big-packet-protocol (BBP) [23] has been evaluated in terms of throughput, multimedia delay and loss, and energy consumption. The CTOP work and the BBP model have been run using the NS-3 simulator and SIMITS simulator.…”

“…After comparison, they have concluded that the CoAP protocol provides better video transmission for the low-power and lossy environments. Clayman and Sayıt [23], they present different methods which can be used for mapping the layered scalable video-coding video-streams utilizing the big-packet protocol. In this work, when utilizing the big-packet protocol, the packets which are to be transmitted have to be constructed using the RTP, user datagram protocol (UDP), and HTTP.…”

Towards High Precision End-to-End Video Streaming from Drones using Packet Trimming

“…The use of the BPP Packet Wash process, where chunks in BPP packets are dropped, has been shown to reduce latency [10]. Although BPP was designed for communicating video, AR, and VR, our previous work [5] was the first real implementation of streaming video using BPP, and that work also determined the effects of video transmission using BPP.…”

“…The determination of the significance values is omitted from this paper due to the space limitation. We refer to our previous work for the details of trimming process [5].…”

“…The encoded video file consists of a number of layers, where the first layer provides the lowest quality, each additional layer provides quality improvements. In [5], we showed that the use of SVC is highly compatible with BPP, and using such an approach can be an effective way to utilize in-network computing.…”