Characterization of signaling and traffic in Joost

Abstract

Peer-to-Peer (P2P) IPTV applications have increasingly been considered as a potential approach to online broadcasting. Recently, many applications such as PPlive, PPStream, and Sopcast have been deployed to deliver live streaming via P2P. One of the latest systems is Joost, which can deliver both Video-on-Demand and RealTime services. Measuring and characterizing this application in terms of signaling overheads and traffic profiles helps to better understand the key limitations of current P2P IPTV systems. Therefore, the main purpose of this paper is firstly to study the impact of Joost on the network. Secondly, we wish to determine the underlying mechanisms of Joost, distinguishing between the Video-onDemand and the Real-time services. Our study is carried out through a close investigation and analysis on the traffic of Joost in two types of streaming. Based upon the data tracing and collection, many different statistics have been derived. Our study unveils strengths (e.g. good resilience to end-to-end delay and jitter) and shortcomings (e.g. poor locality) and yields recommendations for future P2P IPTV systems.

When does lower bitrate give higher quality in modern video services?

“…Just thinking on everyday's life it is easy to see how much this is true: video lectures, live streaming of events, video blogs and more [5]. In spite of the development of communication systems, as Internet and third generation mobile radio networks, one issue remains: in any case, a level of degradation is still experienced by the end user due to impairments caused by the network [6]. Users have some expectations on their experience while using a service.…”

A Cross-Layer Design for Wireless Ad-Hoc Peer-to-Peer Live Multimedia Streaming

“…† † † † To compare with MP2PS, we characterize the delivery principle, the overlay construction, and streaming factors on Joost [12], [13]. Due to the overlay maintenance and routing proximity of our proposed scheme, it can maintain high continuity and low overhead where mobile nodes move.…”

Adaptive Streaming of Scalable Videos over P2PTV

“…Therefore the use of P2P overlay networks [19] to deliver live television in the Internet (P2PTV) is achieving popularity and has been considered as a promising alternative to IP unicast and multicast models [20]. The raising popularity of this solution is confirmed by the amount of new P2PTV [21] applications that have become available, including PPLive, SOPCast, Tvants, TVU-Player, Joost [22], Babelgum, and Zattoo, and by constantly increasing amount of their users. As the P2PTV is not without drawbacks, currently the popularity is gaining solutions combining multicast, CDN, and P2P approaches.…”