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University of Southern California
(271 results)-
White Papers
Partial Read From Peer-to-Peer Databases
May 30, 2007, 12:00am PDT
A peer-to-peer database is a database that its relations are horizontally fragmented and distributed among the nodes of a peer-to-peer network. Each node is potentially both a client and a server...
Provided by University of Southern California
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White Papers
TransDec:A Spatiotemporal Query Processing Framework for Transportation Systems (Demo Paper)
October 5, 2009, 12:00am PDT
This paper presents TransDec, an end-to-end data-driven system which enables spatiotemporal queries in transportation systems with dynamic, real-time and historical data. TransDec fuses a variety...
Provided by University of Southern California
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White Papers
Distributed Spatial Skyline Query Processing in Wireless Sensor Networks
May 29, 2009, 12:00am PDT
Spatial skyline queries can be used in wireless sensor networks for collaborative positioning of multiple objects. However, designing a distributed spatial skyline algorithm in resource...
Provided by University of Southern California
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White Papers
TransDec: A Data-Driven Framework for Decision-Making in Transportation Systems
April 28, 2009, 12:00am PDT
This paper presents an end-to-end data-driven system, dubbed TransDec (Short for Transportation Decision-Making), to enable decision-making queries in transportation systems with dynamic,...
Provided by University of Southern California
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White Papers
Applied Risk And Decision Analysis
March 30, 2009, 12:00am PDT
In Year 4, the major research accomplishments in applied risk and decision analysis were: Technical review and advice on the development of the Risk Analysis for Informed Decisionmaking (RAPID)...
Provided by University of Southern California
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White Papers
A Multicast-Based Protocol for IP Mobility Support
January 1, 2011, 12:00am PST
Several architectures have been recently proposed to support IP mobility. Most studies, however, show that current protocols, in general, fall short from satisfying the performance requirements...
Provided by University of Southern California
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White Papers
DIFS: A Distributed Index for Features in Sensor Networks
January 1, 2011, 12:00am PST
Sensor networks pose new challenges in the collection and distribution of data. Recently, much attention has been focused on standing queries that use in-network aggregation of time series data to...
Provided by University of Southern California
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White Papers
Forecasting Economic And Financial Variables With Global VARs
January 1, 2009, 12:00am PST
This paper considers the problem of forecasting real and financial macroeconomic variables across a large number of countries in the global economy. To this end a global vector autoregressive...
Provided by University of Southern California
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White Papers
Delay-Limited Cooperative Communication With Reliability Constraints in Wireless Networks
April 1, 2009, 12:00am PDT
The authors investigate optimal resource allocation for delay limited cooperative communication in time varying wireless networks. Motivated by real-time applications that have stringent delay...
Provided by University of Southern California
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White Papers
The Optimality of Two Prices: Maximizing Revenue in a Stochastic Network
September 1, 2007, 12:00am PDT
This paper considers the problem of pricing and transmission scheduling for an Access Point (AP) in a wireless network, where the AP provides service to a set of mobile users. The goal of the AP...
Provided by University of Southern California
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White Papers
Optimal Pricing in a Free Market Wireless Network
September 1, 2009, 12:00am PDT
The authors consider an ad-hoc wireless network operating within a free market economic model. Users send data over a choice of paths, and scheduling and routing decisions are updated dynamically...
Provided by University of Southern California
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White Papers
Delay Analysis for Maximal Scheduling in Wireless Networks With Bursty Traffic
April 1, 2008, 12:00am PDT
The authors consider the delay properties of one-hop networks with general interference constraints and multiple traffic streams with time-correlated arrivals. They first treat the case when...
Provided by University of Southern California
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White Papers
Stochastic Optimization for Markov Modulated Networks With Application to Delay Constrained Wireless Scheduling
December 1, 2009, 12:00am PST
The authors consider a wireless system with a small number of delay constrained users and a larger number of users without delay constraints. They develop a scheduling algorithm that reacts to...
Provided by University of Southern California
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White Papers
Energy-Optimal Scheduling With Dynamic Channel Acquisition in Wireless Downlinks
December 1, 2007, 12:00am PST
The authors consider a wireless base station serving L users through L time-varying channels. It is well known that opportunistic scheduling algorithms with full Channel State Information (CSI)...
Provided by University of Southern California
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White Papers
Fairness and Optimal Stochastic Control for Heterogeneous Networks
April 1, 2008, 12:00am PDT
The authors consider optimal control for general networks with both wireless and wireline components and time varying channels. A dynamic strategy is developed to support all traffic whenever...
Provided by University of Southern California
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White Papers
Optimal Energy and Delay Tradeoffs for Multi-User Wireless Downlinks
September 1, 2007, 12:00am PDT
In this paper the authors consider the fundamental tradeoff between energy and delay in a multi-user wireless network. They focus on the case of a wireless downlink that transmits to N different...
Provided by University of Southern California
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White Papers
Delay Reduction Via Lagrange Multipliers in Stochastic Network Optimization
April 24, 2009, 12:00am PDT
In this paper, the authors consider the problem of reducing network delay in stochastic network utility optimization problems. They start by studying the recently proposed Quadratic Lyapunov...
Provided by University of Southern California
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White Papers
Explicit and Precise Rate Control for Wireless Sensor Networks
August 10, 2009, 12:00am PDT
The state of the art congestion control algorithms for wireless sensor networks respond to coarse-grained feedback regarding available capacity in the network with an additive increase...
Provided by University of Southern California
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White Papers
Using Targeted Analytics To Improve Talent Decisions
January 1, 2011, 12:00am PST
Analytics and metrics offer great potential to improve the quality of decision making on HR and human capital issues in organizations. Despite conventional wisdom, strong statistical skills are...
Provided by University of Southern California
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White Papers
Fast HRM: Confidence, Energy And Engagement
November 1, 2010, 12:00am PDT
The recession has not yet gone away; companies are not yet hiring, sales are not skyrocketing, and the world seems cautiously waiting for something a bit more positive to happen. That seems to...
Provided by University of Southern California
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White Papers
Building A Collaboration Capability For Sustainability: How Gap Inc. Is Creating And Leveraging A Strategic Asset
September 1, 2010, 12:00am PDT
Organizations are being challenged to find socially acceptable and ecologically proactive solutions while fulfilling economic expectations. One emerging pattern in response to this challenge is...
Provided by University of Southern California
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White Papers
The Organizational Sustainability Journey: Introduction To The Special Issue
September 1, 2010, 12:00am PDT
Sustainability has become a prominent topic in the popular press, corporate boardrooms, political arenas, and academia. Conversations and debates about what it is, why it is important, what should...
Provided by University of Southern California
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White Papers
HRM In IPOs
August 1, 2010, 12:00am PDT
This paper reports critical information for firms planning to go public and those going through high rates of change. Based on several empirical studies and case study work done over the last 20...
Provided by University of Southern California
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White Papers
Management Consultants As Professionals, Or Are They?
August 22, 2008, 12:00am PDT
Managers make great use of consultants, giving rise to a rapid annual growth rate of 15% in consulting industry revenues where the authors estimate that today there are over one million...
Provided by University of Southern California
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White Papers
Building A Change Capability At Capital One Financial
May 1, 2008, 12:00am PDT
This paper describes the development of an enterprise-wide change capability at Capital One Financial. Despite the rhetoric that organizations need to be more flexible and adaptable to meet the...
Provided by University of Southern California
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White Papers
Leadership Confidence: What Goes Down. Keeps Going Down
October 10, 2008, 12:00am PDT
Leadership confidence is a lot like consumer confidence. When consumers are confident, they buy more. They go 'Above and beyond' and spend money to purchase things they need, and then they start...
Provided by University of Southern California
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White Papers
Relational Capital: Strategic Advantage For Small And Medium-Size Enterprises (SMEs) Negotiation And Collaboration
October 10, 2008, 12:00am PDT
Collaborative entrepreneurship research suggests that organizations will soon pursue more collaborative relationships throughout a worldwide network of firms, driving a strategy of continuous...
Provided by University of Southern California
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White Papers
Testing A Business Model Including Nonfinancial Measures In The Homebuilding Industry
July 1, 2008, 12:00am PDT
The authors test a business model that includes customer satisfaction, employee satisfaction, and financial performance from a company in the homebuilding industry for the period 2001-2004. While...
Provided by University of Southern California
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White Papers
Extra-Role Behaviors Among Temporary Workers: How Firms Create Relational Wealth
May 1, 2008, 12:00am PDT
The authors examine temporary workers' differential Extra-Role Behaviors (ERBs) towards their client and employer; if this varied with the motivation of the worker for being temporary, whether...
Provided by University of Southern California
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White Papers
Building A Change Capability At Capital One Financial: Separating Rhetoric And Reality
May 1, 2008, 12:00am PDT
This paper describes the development of an enterprise?]wide change capability at Capital One Financial. Despite the rhetoric that organizations need to be more flexible and adaptable to meet the...
Provided by University of Southern California
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White Papers
Creating American Businesses That Can Compete Globally
April 1, 2008, 12:00am PDT
Based on what they say in their annual reports and speeches, corporate executives believe the success of their businesses rests heavily on the efforts, initiative, commitment, and motivation of...
Provided by University of Southern California
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White Papers
LIS Is More: Improved Diagnostic Logging in Sensor Networks With Log Instrumentation Specifications
June 23, 2009, 12:00am PDT
Detailed diagnostic data is a prerequisite for debugging problems and understanding runtime performance in distributed embedded wireless systems. Severe bandwidth limitations, tight timing...
Provided by University of Southern California
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White Papers
Aging Analysis in Large-Scale Wireless Sensor Networks
July 8, 2007, 12:00am PDT
Most research on the lifetime of wireless sensor networks has focused primarily on the energy depletion of the very first node. In this study, the authors analyze the entire aging process of the...
Provided by University of Southern California
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White Papers
Scaling Laws for Data-Centric Storage and Querying in Wireless Sensor Networks
November 3, 2008, 12:00am PST
The authors use a constrained optimization framework to derive scaling laws for data-centric storage and querying in wireless sensor networks. This paper considers both unstructured sensor...
Provided by University of Southern California
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White Papers
Enhancement of the IEEE 802.15.4 MAC Protocol for Scalable Data Collection in Dense Sensor Networks
January 24, 2008, 12:00am PST
IEEE 802.15.4 is an important standard for low-rate low power wireless personal area networks that is in increasing commercial use for a diverse range of embedded wireless sensing and control...
Provided by University of Southern California
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White Papers
Crafting A Path Toward Mastery: Turning A Personal Leadership Development Plan Into Something Useful
September 1, 2007, 12:00am PDT
In this paper the author attempts to describe an alternative approach to creating a personal plan for developing leadership ability. To get away from whatever baggage is associated "Development...
Provided by University of Southern California
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White Papers
Developing The Expert Leader
September 1, 2007, 12:00am PDT
In this paper, the authors look at leadership through the lens of expertise and relate the findings of a wide range of research on experts, expertise, and expert performance to how they think...
Provided by University of Southern California
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White Papers
Are All Nonfinancial Performance Measures Created Equal? Evidence On Customer Satisfaction And Employee Satisfaction Measures From The Homebuilding Industry
September 1, 2007, 12:00am PDT
The authors test the business model of a company in the homebuilding industry using its monthly customer satisfaction, employee satisfaction, and financial data for over 200 projects for the...
Provided by University of Southern California
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White Papers
Organization Design For Growth: The Human Resource Contribution
July 1, 2007, 12:00am PDT
Growth is a challenge in today's highly interdependent and competitive global economy, for large companies and small. Whether seeking organic growth in new markets and through developing...
Provided by University of Southern California
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White Papers
National Differences In Performance-Dependent Compensation Practices: The United States Vs. The Netherlands
June 11, 2007, 12:00am PDT
This paper describes the findings of a study aimed at providing an international replication of a U.S.-based study by Gibbs et al. (2004, 2006) focused on the performance-dependent compensation...
Provided by University of Southern California
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White Papers
On the Performance of Multiuser MIMO Mesh Networks
August 25, 2010, 12:00am PDT
Over the last five years both the academia and the industry have produced evidence that wireless multi-hopping suffers from low performance. Even putting real-world constraints aside and assuming...
Provided by University of Southern California
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White Papers
Continuous Reliability Monitoring Using Adaptive Critical Path Testing
December 16, 2009, 12:00am PST
As processor reliability becomes a first order design constraint, this research argues for a need to provide continuous reliability monitoring. The authors present an adaptive critical path...
Provided by University of Southern California
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White Papers
Optimizing Content Dissemination in Heterogeneous Vehicular Networks
February 24, 2010, 12:00am PST
Disseminating shared information to many vehicles could incur significant access fees if it relies only on unicast cellular communications. The authors consider the problem of efficient content...
Provided by University of Southern California
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White Papers
Tag Spotting: Communicating Beyond Carrier Sense
June 16, 2010, 12:00am PDT
A fundamental difference between wireless and wired networks is the presence of interference among wireless links, which introduces dependencies among flows that do not share a link or node. As a...
Provided by University of Southern California
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White Papers
A Privacy Mechanism for Mobile-Based Urban Traffic Monitoring
July 7, 2010, 12:00am PDT
Participatory sensing is a paradigm that allows each participant to sense, collect and transmit information about their surroundings to either other members in the group or to a centralized...
Provided by University of Southern California
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White Papers
Coordinated Sampling in Communication Constrained Sensor Networks Using Markov Decision Processes
June 12, 2009, 12:00am PDT
The paper describes a Markov Decision Process (MDP) framework for coordinated sensing and adaptive communication in embedded sensor networks. The technique enables distributed sensor nodes to...
Provided by University of Southern California
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White Papers
Sub-Carrier Allocation in OFDM Systems: Complexity, Approximability and Algorithms
February 27, 2009, 12:00am PST
Orthogonal Frequency Division Multiplexing (OFDM) has become the de facto standard for fourth generation wireless networks. In such a network, the frequency band is divided into numerous...
Provided by University of Southern California
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White Papers
Link Scheduling in a Single Broadcast Domain Underwater Networks
February 27, 2009, 12:00am PST
Because radio waves decay rapidly in sea water, acoustic communication is the most popular choic for underwater sensor networks. However, since the propagation speed of acoustic waves are 3 orders...
Provided by University of Southern California
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White Papers
Dynamic MIPS Rate Stabilization in Out-of-Order Processors
January 1, 2009, 12:00am PST
Today's micro-processor cores reach high performance levels not only by their high clock rate but also by the concurrent execution of a large number of instructions. Because of the relationship...
Provided by University of Southern California
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White Papers
Static Replication Strategies for Content Availability in Vehicular Ad-Hoc Networks
October 28, 2008, 12:00am PDT
This paper investigates replication strategies for reducing latency to desired content in a vehicular peer-to-peer network. The authors provide a general constrained optimization formulation for...
Provided by University of Southern California
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White Papers
Algorithms for Fast Aggregated Convergecast in Sensor Networks
September 5, 2008, 12:00am PDT
Fast and periodic collection of aggregated data is of considerable interest for mission-critical and continuous monitoring applications in sensor networks. In the many-to-one communication...
Provided by University of Southern California
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White Papers
Investigating Backpressure Based Rate Control Protocols for Wireless Sensor Networks
September 5, 2008, 12:00am PDT
From a theoretical standpoint, backpressure-based techniques present elegant cross-layer rate control solutions that use only local queue information. It is only recently that attempts are being...
Provided by University of Southern California
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White Papers
SlackSim: A Platform for Parallel Simulations of CMPs on CMPs
August 1, 2008, 12:00am PDT
The fast simulation of Chip Multi-Processors (CMPs) presents a critical challenge to the architecture research community as both industry and academia shift their research focus to multi-core...
Provided by University of Southern California
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White Papers
BitTorrent: An Extensible Heterogeneous Model
January 26, 2009, 12:00am PST
Peer-To-Peer (P2P) systems in general, and BitTorrent (BT) specifically, have been of significant interest to researchers and Internet users alike. Existing models of BT abstract away certain...
Provided by University of Southern California
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White Papers
A Discreet, Fault-Tolerant, and Scalable Software Architectural Style for Internet-Sized Networks
September 16, 2007, 12:00am PDT
Large networks, such as the Internet, pose an ideal medium for solving computationally intensive problems, such as NP-complete problems, yet no well-scaling architecture for Internet-sized systems...
Provided by University of Southern California
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White Papers
Comments on "Broadcast Channels With Arbitrarily Correlated Sources"
September 13, 2009, 12:00am PDT
The Marton-Gelfand-Pinsker inner bound on the capacity region of broadcast channels was extended by Han-Costa to include arbitrarily correlated sources where the capacity region is replaced by an...
Provided by University of Southern California
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White Papers
ROS: An Open-Source Robot Operating System
March 7, 2009, 12:00am PST
This paper gives an overview of ROS, an open-source robot operating system. ROS is not an operating system in the traditional sense of process management and scheduling; rather, it provides a...
Provided by University of Southern California
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White Papers
A SRAM-Based Architecture for Trie-Based IP Lookup Using FPGA
May 11, 2008, 12:00am PDT
Internet Protocol (IP) lookup in routers can be implemented by some form of tree traversal. Pipelining can dramatically improve the search throughput. However, it results in unbalanced memory...
Provided by University of Southern California
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White Papers
Communication Models for Algorithm Design in Wireless Sensor Networks
January 1, 2012, 12:00am PST
With continuing advancements in sensor node design and increasingly complex applications for Wireless Sensor Networks (WSNs), formal communication models are needed for either fair comparison...
Provided by University of Southern California
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White Papers
Power Allocation in Linear and Tree WSN Topologies
February 2, 2010, 12:00am PST
Estimation at a fusion center in a wireless sensor network is examined. The problem at hand is to perform power allocation subject to a total network power constraint while minimizing the...
Provided by University of Southern California
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Low-Complexity Approaches to Spectrum Opportunity Tracking
January 1, 2011, 12:00am PST
The authors consider opportunistic spectrum access under design constraints imposed at both node and link levels. First, hardware and energy limitations at node level may prevent a secondary user...
Provided by University of Southern California
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White Papers
The Tradeoff Between Energy Efficiency and User State Estimation Accuracy in Mobile Sensing
August 18, 2009, 12:00am PDT
People-centric sensing and user state recognition can provide rich contextual information for various mobile applications and services. However, continuously capturing this contextual information...
Provided by University of Southern California
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White Papers
Opportunism, Backpressure, and Stochastic Optimization With the Wireless Broadcast Advantage
October 1, 2008, 12:00am PDT
This paper provides a tutorial treatment of recent stochastic network optimization techniques, including Lyapunov network optimization, backpressure, and max-weight decision making. A new...
Provided by University of Southern California
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White Papers
Dynamic Index Coding for Wireless Broadcast Networks
November 26, 2011, 12:00am PST
The authors consider a wireless broadcast station that transmits packets to multiple users. The packet requests for each user may overlap, and some users may already have certain packets. This...
Provided by University of Southern California
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White Papers
Designing a Secure Storage Repository for Sharing Scientific Datasets Using Public Clouds
September 27, 2011, 12:00am PDT
As Cloud platforms gain increasing traction among scientific and business communities for outsourcing storage, computing and content delivery, there is also growing concern about the associated...
Provided by University of Southern California
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White Papers
An Analysis of Security and Privacy Issues in Smart Grid Software Architectures on Clouds
May 2, 2011, 12:00am PDT
Power utilities globally are increasingly upgrading to Smart Grids that use bi-directional communication with the consumer to enable an information-driven approach to distributed energy...
Provided by University of Southern California
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White Papers
Performance Analysis of Vertex-Centric Graph Algorithms on the Azure Cloud Platform
October 7, 2011, 12:00am PDT
Finding key vertices in large graphs is an important problem in many applications such as social networks, bioinformatics, and distribution networks. Betweenness centrality is a popular algorithm...
Provided by University of Southern California
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White Papers
A Compilation Framework for Macroprogramming Networked Sensors
January 1, 2011, 12:00am PST
Macroprogramming - the technique of specifying the behavior of the system, as opposed to the constituent nodes - provides application developers with high level abstractions that alleviate the...
Provided by University of Southern California
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White Papers
Energy Efficient Communications in Ad Hoc Networks Using Directional Antennas
January 1, 2011, 12:00am PST
Directional antennas can be useful in significantly increasing node and network lifetime in wireless ad hoc networks. In order to utilize directional antennas, an algorithm is needed that will...
Provided by University of Southern California
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White Papers
Capacity for Half-Duplex Line Networks With Two Sources
June 4, 2010, 12:00am PDT
The focus is on noise-free half-duplex line networks with two sources where the first node and either the second node or the second-last node in the cascade act as sources. In both cases, the...
Provided by University of Southern California
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White Papers
Tactical Mobile Mesh Network System Design
August 24, 2007, 12:00am PDT
Tactical mobile mesh systems are wireless communication networks characterized by: harsh propagation channels and interference, frequent and rapid changes in the network topology, the requirement...
Provided by University of Southern California
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White Papers
Energy Routing on the Future Grid: A Stochastic Network Optimization Approach
January 26, 2011, 12:00am PST
Population expansion and broad deployment of wind and solar renewable power generation has highlighted concerns over the long-standing strategy for grid deployment, expansion and upgrade. Due to...
Provided by University of Southern California
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White Papers
On Hardness of Multiflow Transmission in Delay Constrained Cooperative Wireless Networks
August 3, 2011, 12:00am PDT
The authors consider the problem of energy-efficient transmission in multi-flow multi-hop cooperative wireless networks. Although the performance gains of cooperative approaches are well known,...
Provided by University of Southern California
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White Papers
Interference Alignment as a Rank Constrained Rank Minimization
October 18, 2010, 12:00am PDT
The authors show that the maximization of the sum degrees of-freedom for the static flat-fading Multiple-Input Multiple-Output (MIMO) interference channel is equivalent to a rank constrained rank...
Provided by University of Southern California
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White Papers
On the Prevalence of Sensor Faults in Real-World Deployments
January 1, 2011, 12:00am PST
Various sensor network measurement studies have reported instances of transient faults in sensor readings. In this paper, the authors seek to answer a simple question: how often are such faults...
Provided by University of Southern California
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White Papers
Enabling Information Confidentiality in Publish/Subscribe Overlay Services
February 23, 2008, 12:00am PST
Alice has a piece of valuable information which she is willing to sell to anyone who is interested in; she is too busy and wants to ask Bob, a professional broker, to sell that information for...
Provided by University of Southern California
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White Papers
Optimal Load Balancing in Publish/Subscribe Broker Networks
February 24, 2008, 12:00am PST
Load balancing in publish/subscribe (pub/sub) broker networks is challenging as the workload is multi-dimensional and content-dependent. In this paper, the authors present the framework design of...
Provided by University of Southern California
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White Papers
Network Capacity Region and Minimum Energy Function for a Delay-Tolerant Mobile Ad Hoc Network
January 10, 2011, 12:00am PST
The authors investigate two quantities of interest in a delay-tolerant mobile ad hoc network: the network capacity region and the minimum energy function. The network capacity region is defined as...
Provided by University of Southern California
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White Papers
Temperature-Aware Dynamic Resource Provisioning in a Power-Optimized Datacenter
December 28, 2009, 12:00am PST
The current energy and environmental cost trends of datacenters are unsustainable. It is critically important to develop datacenter-wide Power and Thermal Management (PTM) solutions that improve...
Provided by University of Southern California
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White Papers
Channel Selection in Multi-Channel Opportunistic Spectrum Access Networks With Perfect Sensing
February 2, 2010, 12:00am PST
The authors study optimal transmission strategies in multi-channel opportunistic spectrum access networks where one Secondary User (SU) opportunistically accesses multiple orthogonal channels that...
Provided by University of Southern California
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