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Video-on-demand and live streaming services are about to take over video discs. Video streaming services typically cannot compete with the content available in Peer-to-Peer (P2P) file sharing networks. Thus, content providers can use P2P systems to identify content to include in their offer. This work defines a novel method to apply Social Network Analysis (SNA) on video streaming or download traces...
Peer-to-Peer (P2P) systems measurements are still a relevant research topic, since insights in large swarm sizes and churn are not yet available for the BitTorrent network. To improve existing measurement methodology, this work here tackles the aspect of swarm size estimation and complete collection in the BitTorrent network. For this purpose the Coupon Collector Problem is modified and formulated...
Decentralized systems, such as overlay networks or content delivery networks, form a virtual network on top of a physical network leading to inefficiencies in handling network traffic as physical locations are not considered. Therefore, this work investigates, analyzes, and evaluates two feasible network locality metrics for decentralized systems to overcome such inefficiencies. Furthermore, those...
Since Video-on-Demand (VoD) streaming and general overlay traffic, especially file sharing, are causing the main portion of today's Internet traffic, Internet Service Providers (ISP) face (a) challenges of network congestion during peak hours and (b) tussles between Video Content Providers (VCP) and ISPs, which can lead to congestion. However, dedicated traffic traces are not available today due to...
Mobile users' Quality-of-Experience (QoE) is degrading as network usage increases while Internet Service Providers (ISP) face increased inter-domain traffic. This paper presents a network traffic management mechanism, named RBHORST, addressing these inefficiencies. RB-HORST exploits home routers by using them as caches and forming an overlay network between them to transfer content. To shift traffic...
Peer-to-Peer (P2P) systems have been deployed on millions of nodes worldwide in environments that range from static to very dynamic and therefore exhibit different churn levels. Typically, P2P systems introduce redundancy to cope with loss of nodes. In distributed hash tables, redundancy often fixed during development or at initial deployment of the system. This can limit the applicability of the...
Due to an increasing number of devices connected to the Internet, data synchronization becomes more important. Centrally managed storage services, such as Dropbox, are popular for synchronizing data between several devices. P2P-based approaches that run fully decentralized, such as BitTorrent-Sync, are starting to emerge. This paper presents Box2Box, a new P2P file synchronization application which...
Finding a good balance between link congestion and over-provisioning for network service providers is a challenge. Recent advances in transport protocols promise a smoother transfer of bulk background data — traffic that P2P (Peer-to-Peer) file sharing systems are significantly contributing to still today. This paper focuses on reducing the link congestion, and traffic peaks originating from P2P systems...
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