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Pennsylvania State University
(138 results)-
White Papers
An Exploratory Study of RFID Adoption in Retail Sector
April 2, 2009, 12:00am PDT
While several large retailers have mandated RFID deployment across their value chain, the case for RFID adoption among several other retailers still remains more uncertain. This paper uses an...
Provided by Pennsylvania State University
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White Papers
A Semi-Markov Survivability Evaluation Model for Intrusion Tolerant Database Systems
September 28, 2009, 12:00am PDT
Survivability modeling and evaluation have gained increasing importance. Most existing models assume that the distributions for transitions between states are exponential. However, this assumption...
Provided by Pennsylvania State University
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White Papers
Tablet PC Use and Impact on Learning in Technology and Engineering Classrooms: A Preliminary Study
September 28, 2008, 12:00am PDT
This paper report the preliminary findings on the evaluation of Tablet PC technology use and its impact on learning across a variety of undergraduate and graduate classes from four technology and...
Provided by Pennsylvania State University
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Case Studies
A Critical Analysis of PSP Data Quality: Results From a Case Study
August 11, 2009, 12:00am PDT
This case study is a critical analysis of Personal Software Process (PSP) that is used by various software engineers to collect and analyze data about their work. There have been a range of...
Provided by Pennsylvania State University
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White Papers
Statistical Profiling-based Techniques for Effective Power Provisioning in Data Centers
February 13, 2009, 12:00am PST
This paper presents MiniFlash Crowds (MFC), which is a light-weight profiling service that reveals resource bottlenecks in a Web server infrastructure. MFC uses a set of controlled probes where an...
Provided by Pennsylvania State University
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White Papers
Deliverable D1.4 - Case Studies on Platform Migration and Refactoring
August 29, 2008, 12:00am PDT
This paper reports all case studies that have been done in the context of Task 1.3 Refactoring Evolving Systems of the SERIOUS Project. The goal was to put to practice the techniques developed...
Provided by Pennsylvania State University
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White Papers
Routing in Socially Selfish Delay Tolerant Networks
December 19, 2009, 12:00am PST
Existing routing algorithms for Delay Tolerant Networks (DTNs) assume that nodes are willing to forward packets for others. In the real world, however, most people are socially selfish; i.e., they...
Provided by Pennsylvania State University
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Whitepapers
Structured Security Testing in the Smartgrid
January 4, 2012, 12:00am PST
The Advanced Metering Infrastructure (AMI) is revolutionizing electrical grids. Intelligent AMI "Smart meters" report real time usage data that enables efficient energy generation and use....
Provided by Pennsylvania State University
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White Papers
The Critical Need for Software Engineering Education
January 1, 2008, 12:00am PST
Software affects almost every aspect of the daily lives (manufacturing, banking, travel, communications, defense, medicine, research, government, education, entertainment, law, etc.). It is an...
Provided by Pennsylvania State University
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White Papers
MDCSim: A Multi-Tier Data Center Simulation Platform
July 21, 2009, 12:00am PDT
Performance and power issues are becoming increasingly important in the design of large cluster based multitier data centers for supporting a multitude of services. Design and analysis of such...
Provided by Pennsylvania State University
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White Papers
Challenges in Improving the Survivability of Data Centers
March 24, 2010, 12:00am PDT
The survivability of data centers is critical to the survivability of the whole enterprise computing system. Building a truly survivable data center faces several daunting challenges, and existing...
Provided by Pennsylvania State University
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White Papers
New Project Staffing for Outsourced Call Centers With Global Service Level Agreements
October 4, 2007, 12:00am PDT
This paper considers the issue of new project staffing in an outsourced call center required to meet a monthly Service Level Agreement. This paper present empirical analysis generated during a...
Provided by Pennsylvania State University
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White Papers
Optimal Cross Training in Call Centers With Uncertain Arrivals and Global Service Level Agreements
August 3, 2007, 12:00am PDT
This paper consider agent cross-training in project oriented call centers where arrival rates are uncertain and the call center is subject to a global service level constraint. This paper is...
Provided by Pennsylvania State University
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White Papers
Semantically Rich Application-Centric Security in Android
September 21, 2009, 12:00am PDT
Smartphones are now ubiquitous. However, the security requirements of these relatively new systems and the applications they support are still being understood. As a result, the security...
Provided by Pennsylvania State University
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White Papers
Pragmatic XML Access Control Using Off-the-Shelf RDBMS
June 29, 2007, 12:00am PDT
As the XML model gets more popular, new needs arise to specify access control within XML model. Various XML access control models and enforcement methods have been proposed recently. However, by...
Provided by Pennsylvania State University
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White Papers
An Incentivized Relay System for a Wireless Mesh Network for Internet Access
January 1, 2010, 12:00am PST
A relay system for a Wireless Mesh Network (WMN) for residential broadband Internet access is studied in which a specific pivot Mesh Router (MR) controls the amount of traffic delivered to its...
Provided by Pennsylvania State University
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White Papers
Distributed Monitoring and Aggregation in Wireless Sensor Networks
December 18, 2009, 12:00am PST
Self-monitoring the sensor statuses such as liveness, node density and residue energy is critical for maintaining the normal operation of the sensor network. When building the monitoring...
Provided by Pennsylvania State University
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White Papers
A Chain Reaction DoS Attack on 3G Networks: Analysis and Defenses
January 20, 2009, 12:00am PST
The IP Multimedia Subsystem (IMS) is being deployed in the Third Generation (3G) networks since it supports many kinds of multimedia services. However, the security of IMS networks has not been...
Provided by Pennsylvania State University
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White Papers
Electricity Prices And Costs Under Regulation And Restructuring
March 4, 2008, 12:00am PST
Restructuring of the electricity industry was expected to improve the operating efficiency of electric power generators, leading to lower production costs and retail prices. Most studies conclude...
Provided by Pennsylvania State University
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White Papers
TaintDroid: An Information-Flow Tracking System for Realtime Privacy Monitoring on Smartphones
September 30, 2010, 12:00am PDT
Today's smartphone operating systems frequently fail to provide users with adequate control over and visibility into how third-party applications use their private data. The authors address these...
Provided by Pennsylvania State University
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White Papers
CiteSeerx: A Cloud Perspective
May 28, 2010, 12:00am PDT
Information retrieval applications are good candidates for hosting in a cloud infrastructure. CiteSeerx a digital library and search engine was built with the goal of efficiently disseminating...
Provided by Pennsylvania State University
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White Papers
Using Surveys For Data Collection In Continuous Improvement
June 22, 2007, 12:00am PDT
This paper about Innovation Insights explains how to use surveys to obtain data. Valid, meaningful surveys provide an effective means for teams to obtain stakeholder input, but require much time...
Provided by Pennsylvania State University
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White Papers
XML Access Control
May 14, 2008, 12:00am PDT
XML access control refers to the practice of limiting access to (Parts of) XML data to only authorized users. Similar to access control over other types of data and resources, XML access control...
Provided by Pennsylvania State University
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White Papers
Efficient Abstraction and Refinement for Behavioral Description Based Web Service Composition
April 13, 2009, 12:00am PDT
The Web Service Composition (WSC) problem with respect to behavioral descriptions deals with the automatic synthesis of a coordinator web service, c that controls a set of web services to reach a...
Provided by Pennsylvania State University
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White Papers
Defending Against Attribute-Correlation Attacks in Privacy-Aware Information Brokering
May 9, 2009, 12:00am PDT
Nowadays, increasing needs for information sharing arise due to extensive collaborations among organizations. Organizations desire to provide data access to their collaborators while preserving...
Provided by Pennsylvania State University
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White Papers
Computational Complexity of Web Service Composition Based on Behavioral Descriptions
August 18, 2008, 12:00am PDT
The Web Service Composition (WSC) problem on behavioral descriptions deals with the automatic construction of a coordinator web service to control a set of web services to reach the goal states....
Provided by Pennsylvania State University
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White Papers
Type-Aware Web Service Composition Using Boolean Satisfiability Solver
May 25, 2008, 12:00am PDT
The goal of the Web Service Composition (WSC) problem is to find an optimal "Composition" of web services to satisfy a given request using their syntactic and/or semantic features, when no single...
Provided by Pennsylvania State University
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White Papers
A Web Service Composition Framework Using Integer Programming With Non-Functional Objectives and Constraints
June 4, 2008, 12:00am PDT
This paper proposes a Web service composition framework that uses Integer Linear Programming with non-functional objectives and constraints, in addition to the syntactic matching of Web services...
Provided by Pennsylvania State University
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White Papers
7 Things You Need to Know About Location-Aware Technologies
May 29, 2007, 12:00am PDT
Location-aware technology is a general term for technology that can determine its own geographical location. A familiar example is the Global Positioning System (GPS) - the navigation system that...
Provided by The Pennsylvania State University
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White Papers
Network Service Description and Discovery for the Next Generation Internet
January 12, 2010, 12:00am PST
The next generation Internet will face new challenges due to the coexisting heterogeneous networks and highly diverse networking applications. Therefore how to coordinate heterogeneous networking...
Provided by The Pennsylvania State University
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White Papers
Adapting BitTorrent to Wireless Ad Hoc Networks
June 12, 2008, 12:00am PDT
BitTorrent is one of the Internet's most efficient content distribution protocols. It is known to perform very well over the wired Internet where end-to-end performance is almost guaranteed....
Provided by Pennsylvania State University
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White Papers
Data Dissemination With Ring-Based Index for Sensor Networks
June 4, 2007, 12:00am PDT
In current sensor networks, sensor nodes are capable of not only measuring real world phenomena, but also storing, processing and transferring these measurements. Many data dissemination...
Provided by Pennsylvania State University
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White Papers
A Bidding Protocol for Deploying Mobile Sensors
June 4, 2007, 12:00am PDT
In some harsh environments, manually deploying sensors is impossible. Alternative methods may lead to imprecise placement resulting in coverage holes. To provide the required high coverage in...
Provided by Pennsylvania State University
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White Papers
On Supporting Distributed Collaboration in Sensor Networks
June 4, 2007, 12:00am PDT
In sensor networks, nodes may malfunction due to the hostile environment. Therefore, dealing with node failure is a very important research issue. In this paper, the authors study distributed...
Provided by Pennsylvania State University
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White Papers
Minimizing the Cost of Mine Selection Via Sensor Networks
January 20, 2009, 12:00am PST
This paper explores the potential of networking the landmines via sensor technology. Specifically, the authors formulate a detonable selection problem, with the objective to destroy the intruding...
Provided by Pennsylvania State University
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White Papers
A Multi-Poller Based Energy-Efficient Monitoring Scheme for Wireless Sensor Networks
January 20, 2009, 12:00am PST
For sensor networks deployed in unattended, harsh environments, the knowledge of sensor statuses such as liveness, node density and residue energy, is critical for maintaining the normal operation...
Provided by Pennsylvania State University
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White Papers
MobiCom Poster Abstract: An Energy-Efficient Fault-Tolerant Monitoring System for Sensor Networks
October 29, 2007, 12:00am PDT
Because sensors are often deployed in harsh and/or adversarial environments, the sensors or the communication links may fail and hence endanger the mission of the sensor network. Although using...
Provided by Pennsylvania State University
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White Papers
Spatial-Temporal Coverage Optimization in Wireless Sensor Networks
April 7, 2009, 12:00am PDT
Mission-driven sensor networks usually have special lifetime requirements. However, the density of the sensors may not be large enough to satisfy the coverage requirement while meeting the...
Provided by Pennsylvania State University
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White Papers
Social-Aware Data Diffusion in Delay Tolerant MANETs
August 11, 2010, 12:00am PDT
Most existing mobility-assisted data access techniques in Delay Tolerant Mobile Ad hoc NETworks (DT-MANETs) are designed to disseminate data to one or several particular destinations. Different...
Provided by Pennsylvania State University
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White Papers
Roadcast: A Popularity Aware Content Sharing Scheme in VANETs
April 5, 2010, 12:00am PDT
Content sharing through vehicle-to-vehicle communication can help people find their interested content on the road. In VANETs, due to limited contact duration time and the unreliable wireless...
Provided by Pennsylvania State University
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Whitepapers
Structured Security Testing in the Smartgrid
January 4, 2012, 12:00am PST
The Advanced Metering Infrastructure (AMI) is revolutionizing electrical grids. Intelligent AMI "Smart meters" report real time usage data that enables efficient energy generation and use....
Provided by Pennsylvania State University
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Whitepapers
Graph Partitioning for Scalable Distributed Graph Computations
February 7, 2012, 12:00am PST
Inter-node communication time constitutes a significant fraction of the execution time of graph algorithms on distributed-memory systems. Global computations on large-scale sparse graphs with...
Provided by The Pennsylvania State University
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Whitepapers
CSMA Local Area Networking Under Dynamic Altruism
April 24, 2012, 12:00am PDT
In this paper, the authors consider medium access control of Local Area Networks (LANs) under limited-information conditions as befits a distributed system. Rather than assuming "By rule"...
Provided by Pennsylvania State University
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Whitepapers
Secrecy Sum-Rates for the Multiple-Access Wire-Tap Channel With Ergodic Block Fading
September 28, 2007, 12:00am PDT
The authors consider a two-user multiple-access wiretap channel that undergoes ergodic block fading. In this scenario, there are two users are communicating with a base station in the presence of...
Provided by The Pennsylvania State University
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Whitepapers
On the Energy-Delay Trade-Off of a Two-Way Relay Network
March 24, 2008, 12:00am PDT
The authors consider a three node network in which a pair of nodes with stochastic arrivals communicate with each other with the help of an intermediate relay. The bi-directional nature of the...
Provided by The Pennsylvania State University
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Whitepapers
On Performance Evaluation of Cooperative Spectrum Sensing in Cognitive Radio Networks
February 26, 2010, 12:00am PST
This paper presents the system level performance evaluation for energy-detection based cooperative spectrum sensing in cognitive radio networks. Three performance criteria are quantitively...
Provided by Pennsylvania State University
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Whitepapers
Cost Constrained Spectrum Sensing in Cognitive Radio Networks
February 26, 2010, 12:00am PST
This paper addresses optimal spectrum sensing in cognitive radio networks considering its system level cost that accounts for the local processing cost of sensing (sample collection and energy...
Provided by Pennsylvania State University
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Whitepapers
MIMO Wiretap Channels With Arbitrarily Varying Eavesdropper Channel States
July 27, 2010, 12:00am PDT
In this paper, a class of information theoretic secrecy problems is addressed where the eavesdropper channel states are completely unknown to the legitimate parties. In particular, MIMO wiretap...
Provided by The Pennsylvania State University
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Whitepapers
Multiple Access Channels With States Causally Known at Transmitters
November 30, 2010, 12:00am PST
The state-dependent Multiple Access Channel (MAC) is considered where the state sequences are known causally to the encoders. First, a MAC with two independent states each known causally to one...
Provided by The Pennsylvania State University
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Whitepapers
Message and State Cooperation in a Relay Channel When Only the Relay Knows the State
February 3, 2011, 12:00am PST
A state-dependent relay channel is studied in which strictly causal channel state information is available at the relay and no state information is available at the source and destination. The...
Provided by The Pennsylvania State University
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Whitepapers
Sum-Rate Optimal Power Policies for Energy Harvesting Transmitters in an Interference Channel
February 27, 2012, 12:00am PST
This paper considers a two-user Gaussian interference channel with energy harvesting transmitters. Different than conventional battery powered wireless nodes, energy harvesting transmitters have...
Provided by The Pennsylvania State University
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Whitepapers
Operational Information Content Sum Capacity: Formulation and Examples
July 8, 2011, 12:00am PDT
This paper considers Quality-of-Information (QoI) aware rate allocation policies for multiple access channels. QoI is a recently introduced composite metric which is impacted by a number of...
Provided by Pennsylvania State University
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Whitepapers
DFTL: A Flash Translation Layer Employing Demand-Based Selective Caching of Page-Level Address Mappings
August 1, 2008, 12:00am PDT
Recent technological advances in the development of flash-memory based devices have consolidated their leadership position as the preferred storage media in the embedded systems market and opened...
Provided by The Pennsylvania State University
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Whitepapers
VPath: Precise Discovery of Request Processing Paths From Black-Box Observations of Thread and Network Activities
May 7, 2009, 12:00am PDT
Discovering end-to-end request-processing paths is crucial in many modern IT environments for reasons varying from debugging and bottleneck analysis to billing and auditing. Existing solutions for...
Provided by Pennsylvania State University
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Whitepapers
FlashSim: A Simulator for NAND Flash-Based Solid-State Drives
May 4, 2009, 12:00am PDT
NAND Flash memory-based Solid-State Disks (SSDs) are becoming popular as the storage media in domains ranging from mobile laptops to enterprise-scale storage systems due to a number of benefits...
Provided by The Pennsylvania State University
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Whitepapers
Cloud Computing: A Digital Libraries Perspective
July 21, 2010, 12:00am PDT
Provisioning and maintenance of infrastructure for Web based digital library search engines such as CiteSeer present several challenges. CiteSeer provides autonomous citation indexing, full text...
Provided by Pennsylvania State University
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Whitepapers
Middleware for a Re-Configurable Distributed Archival Store Based on Secret Sharing
December 8, 2010, 12:00am PST
Modern storage systems are often faced with complex trade-offs between the confidentiality, availability, and performance they offer their users. Secret sharing is a data encoding technique that...
Provided by The Pennsylvania State University
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Whitepapers
Leveraging Value Locality in Optimizing NAND Flash-Based SSDs
March 9, 2011, 12:00am PST
NAND flash-based Solid-State Drives (SSDs) are increasingly being deployed in storage systems at different levels such as buffer-caches and even secondary storage. However, the poor reliability...
Provided by The Pennsylvania State University
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Whitepapers
Carbon-Aware Energy Capacity Planning for Datacenters
June 1, 2012, 12:00am PDT
Datacenters are facing increasing pressure to cap their carbon footprints at low cost. Recent work has shown the significant environmental benefits of using renewable energy for datacenters by...
Provided by The Pennsylvania State University
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Whitepapers
Applications of Data Mining in the Management of Performance and Power in Data Centers
December 10, 2009, 12:00am PST
Performance and power issues are becoming increasingly important in the design of large data centers for supporting a multitude of services. There are many perspectives of addressing these issues...
Provided by Pennsylvania State University
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Whitepapers
A Resilient and Collaborative Replacement Framework for Per-Flow Monitoring
February 25, 2009, 12:00am PST
In the context of a collaborating surveillance system for active TCP sessions handled by an networking device, the authors consider two problems. The first is the problem of protecting the flow...
Provided by Pennsylvania State University
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Whitepapers
MROrchestrator: A Fine-Grained Resource Orchestration Framework for MapReduce Clusters
May 5, 2012, 12:00am PDT
Efficient resource management in data centers and clouds running large distributed data processing frameworks like MapReduce is crucial for enhancing the performance of hosted applications and...
Provided by Pennsylvania State University
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Whitepapers
CloudPD: Problem Determination and Diagnosis in Shared Dynamic Clouds
May 22, 2012, 12:00am PDT
Cloud computing has emerged as a popular computing paradigm allowing workloads to automatically scale in response to changes in demand. Clouds use virtualization to enable elasticity by...
Provided by Pennsylvania State University
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Whitepapers
On the Equivocation Region of Relay Channels With Orthogonal Components
November 24, 2007, 12:00am PST
The authors consider the secrecy rate of a relay network where an eavesdropper is co-located with the relay node. This exemplifies a scenario where the relay node is not malicious by nature, but...
Provided by Pennsylvania State University
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White Papers
Degraded Broadcast Diamond Channels With Non-Causal State Information at the Source
March 8, 2012, 12:00am PST
A state-dependent degraded broadcast diamond channel is studied where the source-to-relays cut is modeled with two noiseless, finite-capacity digital links with a degraded broadcasting structure,...
Provided by The Pennsylvania State University
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White Papers
Cost Sharing With Network Coding in Two-Way Relay Networks
October 2, 2009, 12:00am PDT
The authors consider a scenario in which two sources exchange stochastically varying traffic with the aid of a bidirectional relay that may perform network coding over the incoming packets. Each...
Provided by The Pennsylvania State University
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White Papers
A Stochastic Model of the Damage Propagation in Database Systems
March 24, 2009, 12:00am PDT
Security defense tools like firewalls and antivirus software's are not sufficient to defend against dynamic threats to database systems. Successful attacks could not only seriously impair the...
Provided by The Pennsylvania State University
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White Papers
Interference Channels With Strong Secrecy
October 14, 2009, 12:00am PDT
It is known that given the real sum of two independent uniformly distributed lattice points from the same nested lattice codebook, the eavesdropper can obtain at most 1 bit of information per...
Provided by The Pennsylvania State University
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White Papers
Distributed Critical Location Coverage in Wireless Sensor Networks With Lifetime Constraint
January 9, 2012, 12:00am PST
In many surveillance scenarios, there are some known critical locations where the events of concern are expected to occur. A common goal in such applications is to use sensors to monitor these...
Provided by The Pennsylvania State University
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White Papers
Robust Topology Control in Multi-Hop Cognitive Radio Networks
January 9, 2012, 12:00am PST
The opening of under-utilized spectrum creates the opportunity of substantial performance improvement through cognitive radio techniques. However, the real network performance may be limited since...
Provided by The Pennsylvania State University
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White Papers
Optimal Recovery From Large-Scale Failures in IP Networks
March 13, 2012, 12:00am PDT
Quickly recovering IP networks from failures is critical to enhancing Internet robustness and availability. Due to their serious impact on network routing, large-scale failures have received...
Provided by The Pennsylvania State University
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White Papers
Distributed Maintenance of Cache Freshness in Opportunistic Mobile Networks
March 15, 2012, 12:00am PDT
Opportunistic mobile networks consist of personal mobile devices which are intermittently connected with each other. Data access can be provided to these devices via cooperative caching without...
Provided by The Pennsylvania State University
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White Papers
Detecting Spam Bots in Online Social Networking Sites: A Machine Learning Approach
April 21, 2010, 12:00am PDT
As online social networking sites become more and more popular, they have also attracted the attentions of the spammers. In this paper, Twitter, a popular micro-blogging service, is studied as an...
Provided by Pennsylvania State University
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White Papers
Evaluating Survivability and Costs of Three Virtual Machine Based Server Architectures
April 21, 2010, 12:00am PDT
Virtual machine based services are becoming predominant in data centers or cloud computing since virtual machines can provide strong isolation and better monitoring for security purposes. While...
Provided by Pennsylvania State University
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White Papers
An Introduction to Web Systems Using UML, the Unified Modeling Language
May 23, 2011, 12:00am PDT
UML, the Unified Modeling Language, is designed to specify systems in a way such that clients and developers can communicate and agree on system-specifications. The complete UML is complex, but...
Provided by Pennsylvania State University
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White Papers
Control-Theoretic, Mission-Driven, Optimization Techniques for Wireless Sensor Networks
December 15, 2008, 12:00am PST
Network Utility Maximization (NUM) techniques, which cast resource sharing problems as one of distributed utility maximization, have been investigated for a variety of optimization problems in...
Provided by Pennsylvania State University
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White Papers
Addressing Practical Challenges in Utility Optimization of Mobile Wireless Sensor Networks
February 11, 2008, 12:00am PST
This paper examines the practical challenges in the application of the distributed Network Utility Maximization (NUM) framework to the problem of resource allocation and sensor device adaptation...
Provided by Pennsylvania State University
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White Papers
Scenario Analysis of Web Service Composition Based on Multi-Criteria Mathematical Goal Programming
December 13, 2011, 12:00am PST
This paper addresses the web service composition problem considering multi-criteria regarding Quality of Services (QoS). Three different scenarios of multi-criteria mathematical programming models...
Provided by Pennsylvania State University
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White Papers
Scalable Web Content Attestation
September 22, 2009, 12:00am PDT
The web is a primary means of information sharing for most organizations and people. Currently, a recipient of web content knows nothing about the environment in which that information was...
Provided by Pennsylvania State University
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White Papers
A Study of Android Application Security
May 10, 2011, 12:00am PDT
The fluidity of application markets complicate smartphone security. Although recent efforts have shed light on particular security issues, there remains little insight into broader security...
Provided by Pennsylvania State University
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