Ahstract-A large number of live segmented adaptive HTTP video streaming services exist in the Internet today. These quasi live solutions have been shown to scale to a large number of concurrent users, but the characteristic on-off traffic pattern makes TCP behave differently compared to the bulk transfers the protocol is designed for. In this paper, we analyze the TCP performance of such live on-off sources, and we investigate possi ble improvements in order to increase the resource utilization on the server side. We observe that the problem is the bandwidth wastage because of the synchronization of the on period. We investigate four different techniques to mitigate this problem. We first evaluate the techniques on pure on-off traffic using a fixed quality and then repeat the experiments with quality adaptation.
In REF , T. Kupka proposed to evaluate the performance of live DASH under on/off traffic and tested four different methods to improve the performance.
Performance of on-off traffic stemming from live adaptive segmented HTTP video streaming
37th Annual IEEE Conference on Local Computer Networks
37th Annual IEEE Conference on Local Computer Networks
Computer Science