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Network coordinate (NC) system allows efficient Internet distance prediction with scalable measurements. Most of the NC systems are based on embedding hosts into a low dimensional Euclidean space. Unfortunately, the accuracy of predicted distances is largely hurt by the persistent occurrence of Triangle Inequality Violation (TIV) in measured Internet distances. IDES is a dot product based NC system...
Network coordinate (NC) systems provide a lightweight and scalable way for predicting the distances, i.e., round-trip latencies among Internet hosts. Most existing NC systems embed hosts into a low dimensional Euclidean space. Unfortunately, the persistent occurrence of Triangle Inequality Violation (TIV) on the Internet largely limits the distance prediction accuracy of those NC systems. Some alternative...
Routing policies and the complexity of network give rise to violations of the Triangle Inequality with respect to delay (Round-Trip Time) in the Internet. Most of the network coordinate (NC) systems, for example Vivaldi, suffer from inaccurate distance estimation due to such Triangle Inequality Violations (TIVs). In this abstract, we propose a methodology to overcome TIVs by introducing medium in...
When large files are offered by many mirrors for clients to download, selecting the proper download mirrors is necessary in speeding up the clients' download. The existing method, which measures all the Round Trip Time (RTT) between clients and all mirrors, costs much time and Internet traffic. In this paper, we propose NC-APT, an efficient and scalable download mirror selecting system, which is capable...
Network coordinate (NC) system is an efficient and scalable system for Internet distance prediction. In this paper, we propose 3 two-layer NC systems HNPS, HBBS and HIDES derived from NPS, BBS and IDES, respectively. We use hierarchical idea in both Euclidean coordinate systems (NPS and BBS) and matrix factorization model (IDES). And to the best of our knowledge, we first introduce the thought of...
In recent research work of securing Network Coordinate (NC) system, they concentrate on the passive security defense mechanisms. In this paper we propose SLINCS, a social link based evaluation security system that utilizes information from existing social relationship networks to implement proactive security mechanisms for NC systems. The key idea is to eliminate suspicious nodes before they launch...
In recent years, network coordinate systems which map nodes into a geometrical space can effectively support overlay applications relying on topology-awareness. However, these systems base on an ideal assumption that the nodes in them are honest to cooperate with each other. Although there have been some studies about attacks on network coordinate systems, the effect of attacks on PIC---one of the...
Network coordinates provide a practical and efficient way to estimate latencies among hosts in the network. In this paper, we study the problem of designing and implementing a network coordinate system (NCS). To combine advantages from both Vivaldi and GNP algorithms, we propose our network coordinate system. We implement such a system on PlanetLab test-bed all over the world. Network distances can...
In this paper, we propose Rainbow, a mesh based locality-aware P2P overlay multicast system. Nodes first self-organize into a two-layer overlay. A simple and accurate network coordinate system is used for more reliable node clustering. Pull-based method is used in data packet delivery. According to our simulation, the ARDP of Rainbow ranges from 63% to 76% of that in Binning overlay. Our real-world...
Hybrid overlay network (HONet) is a locality-aware hybrid overlay architecture, which combines the scalability and simplicity of a structured overlay with the connection flexibility of an unstructured overlay. In this paper, we propose Canicula, an improved HONet. First, using a simple and accurate network coordinate system, Canicula achieves more reliable node clustering. Secondly, Canicula uses...
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