Cloud service providers (CSPs) need effective ways to distribute content across wide area networks. Providing large-scale, geographically-replicated online services presents new opportunities for coordination between server selection (to match subscribers with servers), traffic engineering (to select efficient paths for the traffic), and content placement (to store content on specific servers)....

Researchers have proposed hundreds of algorithms for solutions to the distributed scheduling, or matching, problem. However, few of these algorithms have been implemented, and the primary analysis has either been purely theoretical or with limited simulation. There has been little or no performance analysis of these algorithms under realistic workloads. The result is that it is impossible to co...

Executing parallel applications across distributed networks introduces the problem of fault tolerance. A viable solution for fault tolerance must keep overhead manageable and not compromise the high performance objective of parallel processing. In this paper, we explore two options for achieving fault tolerance for a common class of parallel applications, single-program-multiple-data (SPMD). We...

OceanStore is a utility infrastructure designed to span the globe and provide continuous access to persistent information. Since this infrastructure is comprised of untrusted servers, data is protected through redundancy and cryptographic techniques. To improve performance, data is allowed to be cached anywhere, anytime. Finally, monitoring of usage patterns allows adaptation to regional outage...

Our goal is to explain how routing between different administrative domains works in the In-ternet. We discuss how Internet Service Providers (ISPs) exchange routing information, packets, and (above all) money between each other, and how the way in which they buy service from and sell service to each other and their customers influences routing. We discuss the salient features of the Border Gat...

We report results from a longitudinal analysis of the IP traffic workload seen at a single measurement site inside a major Internet traffic exchange point. Using data collected by the NLANR/MOAT Network Analysis Infrastructure (NAI) project [NAI] and analysis software from CAIDA’s CoralReef project [CoralReef], we present trends in application usage seen at the NASA Ames Internet Exchange over ...

This paper presents critical survey along with the novel concept of smart power flow controller with Phasor Measurement Units (PMUs) signals for stability enhancement of a large power system. Also, the current status of Wide Area Measurement Systems (WAMS) and developments in real time applications of synchrophasor technology in power system has been adequately addressed. It has been noticed th...

frastructure is still lacking. We propose Globe: a novel scalable infrastructure for a massive worldwide distributed system. Currently, designers build applications on top of a limited number of communication services. On the Internet, for example, this means that applications communicate mainly through transmissioncontrol protocol (TCP) connections, but otherwise must implement all additional ...

Compression therapy, a well-recognized treatment for lymphoedema and venous disorders, pressurizes limbs and generates massive non-noxious afferent sensory barrages. The aim of this study was to study whether such afferent activity has an analgesic effect when applied on the lower limbs, hypothesizing that larger compression areas will induce stronger analgesic effects, and whether this effect ...

This paper summarizes the results of a reliability assessment conducted by Northeast Power Coordinating Council’s (NPCC) Regional Planning Forum (RPF). The RPF’s goal is to explore innovative approaches to reliably enhancing the capabilities of the transmission grid from a Wide-Area, Trans-Regional outlook. Scenarios of Canadian to United States transfers, New England to the Mid-Atlantic Area C...