Georgia Tech

Displaying 1 - 10 of 19 results

  • Improving Hadoop Service Provisioning in A Geographically Distributed Cloud

    White Papers // Apr 2014 // provided by Georgia Tech

    With more data generated and collected in a geographically distributed manner, combined by the increased computational requirements for large scale data-intensive analysis, the authors have witnessed the growing demand for geographically distributed Cloud datacenters and hybrid Cloud service provisioning, enabling organizations to support instantaneous demand of additional computational resources and ...

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  • Nimble Algorithms for Cloud Computing

    White Papers // Apr 2013 // provided by Georgia Tech

    Cloud computing is a new paradigm where data is stored across multiple servers and the goal is to compute a function of all the data. The authors consider a simple model where each server uses polynomial time and space, but communication among servers being more expensive is ideally bounded by ...

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  • The Forgotten 'Uncore': On the Energy-Efficiency of Heterogeneous Cores

    White Papers // Apr 2012 // provided by Georgia Tech

    Heterogeneous Multicore Processors (HMPs), consisting of cores with different performance/power characteristics, have been proposed to deliver higher energy efficiency than symmetric multicores. This paper investigates the opportunities and limitations in using HMPs to gain energy-efficiency. Unlike previous work focused on server systems, the authors focus on the client workloads typically ...

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  • A Simpler and Better Design of Error Estimating Coding

    White Papers // Apr 2012 // provided by Georgia Tech

    The authors study error estimating codes with the goal of establishing better bounds for the theoretical and empirical overhead of such schemes. They explore the idea of using sketch data structures for this problem, and show that the tug-of-war sketch gives an asymptotically optimal solution. The optimality of their algorithms ...

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  • SilverLine: Data and Network Isolation for Cloud Services

    White Papers // Jun 2011 // provided by Georgia Tech

    Although cloud computing service providers offer opportunities for improving the administration, reliability, and maintenance of hosted services, they also concentrate network resources and data in a small number of cloud service providers. The concentration of data and resources introduces various associated risks, including sharing the underlying infrastructure with unknown (and ...

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  • Twelve Years in the Evolution of the Internet Ecosystem

    White Papers // Mar 2011 // provided by Georgia Tech

    The authors' goal is to understand the evolution of the Autonomous System (AS) ecosystem over the last 12 years. Instead of focusing on abstract topological properties, the authors classify ASes into a number of types depending on their function and business type. Further, they consider the semantics of inter-AS links ...

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  • Energy-Efficient Wireless Communications: Tutorial, Survey, and Open Issues

    White Papers // Feb 2011 // provided by Georgia Tech

    With explosive growth of high-data-rate applications, more and more energy is consumed in wireless networks to guarantee Quality-of-Service (QoS). Therefore, energy-efficient communications have been paid increasing attention under the background of limited energy resource and environmental-friendly transmission behaviors. In this paper, basic concepts of energy-efficient communications are first introduced and ...

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  • Life (and routing) on the Wireless Manifold

    White Papers // Jan 2011 // provided by Georgia Tech

    The authors present the wireless manifold, a 2-dimensional surface whose geodesic distances accurately capture wireless signal propagation. As a result, the connectivity graph of a wireless network can be viewed as a disk graph on the manifold. A compact representation of the manifold can be reconstructed from a sparse set ...

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  • Avoiding Oscillations Due to Intelligent Route Control Systems

    White Papers // Jan 2011 // provided by Georgia Tech

    Intelligent Route Control (IRC) systems are increasingly deployed in multihomed networks. IRC systems aim to optimize the cost and performance of outgoing traffic, based on measurement-driven dynamic path switching techniques. In this paper, the authors first show that IRC systems can introduce sustained traffic oscillations, causing significant performance degradation instead ...

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  • O2S2: Enhanced Object-Based Virtualized Storage

    White Papers // Jan 2011 // provided by Georgia Tech

    Object-based Storage Devices (OSDs) elevate the level of abstraction presented to clients, thereby permitting them to offer methods for managing, sharing, and securing information that go beyond those offered by block-based stores. The Object-Oriented Storage System (O2S2) architecture presented and evaluated in this paper implements a virtualization service to provide ...

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