The present invention is directed to simultaneously monitoring the performance of differing
communication paths between selected sites for detecting performance problems over one …

Internet delivery infrastructures are traditionally optimized for low-latency traffic, such as the
Web traffic. However, in recent years we are witnessing a massive growth of throughput …

With the fast development of video and voice network applications, CDN (content distribution
networks) and P2P (peer-to-peer) content distribution technologies have gradually matured …

Traditional traffic engineering adapts the routing of traffic within the network to maximize
performance. We propose a new approach that also adaptively changes where traffic enters …

We study the price of anarchy of selfish routing with variable traffic rates and when the path
cost is a nonadditive function of the edge costs. Nonadditive path costs are important, for …

Measurement studies on the Internet topology show that connectivities of nodes exhibit
power-law attribute, but it is apparent that only the degree distribution does not determine …

We consider the problem of Internet switching, where traffic is generated by selfish users.
We study a packetized (TCP-like) traffic model, which is more accurate than the widely used …

In this paper, we explore the interaction between traffic engineering and the users of a
network. Because a traffic engineer may be unaware of the structure of content distribution …

Cloud service providers (CSPs) need effective ways to distribute content across wide area
networks. Providing large-scale, geographically-replicated online services presents new …

Delay-tolerant networks (DTNs) have the great potential to connecting devices and regions
of the world that are presently under-served by current networks. A vital challenge for Delay …