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University of Maryland
(345 results)-
White Papers
On Black-Box Constructions of Predicate Encryption From Trapdoor Permutations
August 30, 2009, 12:00am PDT
Predicate encryption is a recent generalization of Identity-Based Encryption (IBE), broadcast encryption, attribute-based encryption, and more. A natural question is whether there exist black-box...
Provided by University of Maryland
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White Papers
Universally-Composable Two-Party Computation in Two Rounds
January 1, 2012, 12:00am PST
Round complexity is a central measure of efficiency, and characterizing the round complexity of various cryptographic tasks is of both theoretical and practical importance. The authors show here a...
Provided by University of Maryland
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White Papers
A New Privacy Enhanced Matchmaking Protocol
December 20, 2007, 12:00am PST
Although several wide-spread internet applications (e.g., job-referral services, dating services) can benefit from online matchmaking, protocols defined over the past two decades fail to address...
Provided by University of Maryland
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White Papers
Rapid "Crash Testing" for Continuously Evolving GUI-Based Software Applications
January 1, 2008, 12:00am PST
Several rapid-feedback-based quality assurance mechanisms are used to manage the quality of continuously evolving software. Even though Graphical User Interfaces (GUIs) are one of the most...
Provided by University of Maryland
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White Papers
Deaf Cooperation for Secrecy With Multiple Antennas at the Helper
February 19, 2012, 12:00am PST
In this paper, the authors investigate the roles of Cooperative Jamming (CJ) and Noise Forwarding (NF) in improving the achievable secrecy rates of a Gaussian WireTap channel (GWT) when the helper...
Provided by University of Maryland
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White Papers
Deaf Cooperation and Relay Selection Strategies for Secure Communication in Multiple Relay Networks
February 4, 2012, 12:00am PST
In this paper, the authors investigate the roles of Cooperative Jamming (CJ) and Noise Forwarding (NF) in improving the achievable secrecy rates of a Gaussian WireTap channel (GWT). In particular,...
Provided by University of Maryland
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White Papers
Degraded Compound Multi-Receiver Wiretap Channels
October 14, 2009, 12:00am PDT
In this paper, the authors study the degraded compound multi-receiver wiretap channel. The degraded compound multi-receiver wiretap channel consists of two groups of users and a group of...
Provided by University of Maryland
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White Papers
Secure Communication in Multiple Relay Networks Through Decode-and-Forward Strategies
January 30, 2012, 12:00am PST
In this paper, the authors first study the Decode-and-Forward strategy for secrecy in a single-relay network. They propose a suboptimal Decode-and-Forward with Zero Forcing (DF/ZF) strategy for...
Provided by University of Maryland
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White Papers
Towards Shrink-Wrapped Security: Practically Incorporating Context Into Security Services
June 18, 2011, 12:00am PDT
The mobile workforce is rapidly increasing, and technological advances make it feasible for these workers to have ubiquitous access to a variety of resources with various protection requirements....
Provided by University of Maryland
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White Papers
Analysis of Explanatory and Predictive Architectures and the Relevance in Explaining the Adoption of IT in SMEs
May 15, 2011, 12:00am PDT
This paper critiques the explanatory and predictive architectures of six prominent innovation adoption theories with a view to unraveling their individual capabilities in providing lenses to the...
Provided by University of Maryland
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White Papers
Formal Specification and Analysis of PCF Protocol in the 802.11 Standard Using Systems of Communicating Machines
January 23, 2012, 12:00am PST
With the widespread usage of the 802.11 protocol, it becomes important to study the protocol operation. In this paper, the authors propose a formal model for the point coordination function of the...
Provided by University of Maryland
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White Papers
Towards an Optimal Strategy for WLAN Location Determination Systems
January 23, 2012, 12:00am PST
This paper presents a general analysis for the performance of WLAN location determination systems. In particular, the authors present an analytical method for calculating the average distance...
Provided by University of Maryland
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White Papers
Chinese Restaurant Game - Part II: Applications to Wireless Networking, Cloud Computing, and Online Social Networking
December 15, 2011, 12:00am PST
In this paper, the authors proposed a new game, called Chinese restaurant game, to analyze the social learning problem with negative network externality. The best responses of agents in the...
Provided by University of Maryland
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White Papers
Neighbor Discovery in a Wireless Sensor Network: Multipacket Reception Capability and Physical-Layer Signal Processing
December 27, 2011, 12:00am PST
In randomly deployed networks, such as sensor networks, an important problem for each node is to discover its neighbor nodes so that the connectivity amongst nodes can be established. In this...
Provided by University of Maryland
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White Papers
Formal Specification and Analysis of the PCF Protocol in the 802.11 Standard Using Systems of Communicating Machines
October 2, 2008, 12:00am PDT
With the widespread usage of the 802.11 protocol, it becomes important to study the protocol operation. In this paper, the authors propose a formal model for the point coordination function of the...
Provided by University of Maryland
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White Papers
MAC Games for Distributed Wireless Network Security With Incomplete Information of Selfish and Malicious User Types
November 3, 2009, 12:00am PST
The authors consider game theoretic models of wireless Medium Access Control (MAC) in which each transmitter makes individual decisions regarding their power level or transmission probability....
Provided by University of Maryland
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White Papers
Jamming Games for Power Controlled Medium Access With Dynamic Traffic
January 1, 2012, 12:00am PST
Due to the broadcast nature of the wireless medium, wireless networks are highly susceptible to jamming attacks. Such attacks are often studied in a game theoretic framework under the assumption...
Provided by University of Maryland
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Whitepapers
Adaptive Transmission Policies for Energy Harvesting Wireless Nodes in Fading Channels
May 10, 2011, 12:00am PDT
In this paper, the authors consider a single-user communication system, where an energy harvesting transmitter communicates with a receiver over a fading wireless channel. They design adaptive...
Provided by University of Maryland
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White Papers
NUMA-Aware Java Heaps for Server Applications
January 1, 2008, 12:00am PST
This paper introduces a set of techniques to both measure and optimize memory access locality of Java applications running on cc-NUMA servers. These techniques work at the object level and use...
Provided by University of Maryland
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White Papers
Model-Based Testing of Community-Driven Open-Source GUI Applications
January 1, 2008, 12:00am PST
Although the World-Wide-Web (WWW) has significantly enhanced Open-Source Software (OSS) development, it has also created new challenges for Quality Assurance (QA), especially for OSS with a...
Provided by University of Maryland
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White Papers
MPLS Traffic Engineering Using Enhanced Minimum Interference Routing: An Approach Based on Lexicographic Max-Flow
January 1, 2009, 12:00am PST
The main contribution of this paper is a new algorithm for dynamic routing of bandwidth guaranteed tunnels. The algorithm is a generalization of the "minimum-interference" based algorithm. The...
Provided by University of Maryland
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Whitepapers
Topological Constraints on Identifying Additive Link Metrics Via End-to-End Paths Measurements
July 30, 2012, 12:00am PDT
The authors investigate the problem of identifying individual link metrics in a communication network through measuring accumulated end-to-end metrics over selected paths, under the assumption...
Provided by University of Maryland University College
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Whitepapers
Efficient Identification of Additive Link Metrics Via Network Tomography
March 26, 2013, 12:00am PDT
The authors investigate the problem of identifying individual link metrics in a communication network from accumulated end-to-end metrics over selected measurement paths, under the assumption that...
Provided by University of Maryland University College
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Whitepapers
Spectrum Prediction in Cognitive Radio Networks
January 24, 2013, 12:00am PST
Spectrum sensing, spectrum decision, spectrum sharing, and spectrum mobility are four major functions of Cognitive Radio (CR) systems. Spectrum sensing is utilized to identify primary users'...
Provided by University of Maryland University College
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Whitepapers
Deadline-Aware Co-Scheduling Using Anycast Advance Reservations in Wavelength Routed Lambda Grids
January 8, 2013, 12:00am PST
As grid applications evolve, the need for user controlled network infrastructure is apparent in order to support emerging dynamic and interactive services. Due to the inherent bandwidth offered by...
Provided by University of Maryland University College
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White Papers
Temporal Visualization of Planning Polygons for Efficient Partitioning of Geo-Spatial Data
January 1, 2010, 12:00am PST
Partitioning of geo-spatial data for efficient allocation of resources such as schools and emergency health care services is driven by a need to provide better and more effective services....
Provided by University of Maryland
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White Papers
Visualizing Multivariate Time Series Data to Detect Specific Medical Conditions
July 12, 2008, 12:00am PDT
Efficient unsupervised algorithms for the detection of patterns in time series data, often called motifs, have been used in many applications, such as identifying words in different languages,...
Provided by University of Maryland
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White Papers
Data Compression in Sensor Networks
October 31, 2008, 12:00am PDT
Data compression issues arise in a sensor network when designing protocols for efficiently collecting all data observed by the sensor nodes at an Internet-connected base station. More formally,...
Provided by University of Maryland
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White Papers
Are Virtualized Overlay Networks Too Much of a Good Thing?
February 28, 2009, 12:00am PST
Peer-to-peer (P2P) networks have recently become one of the hottest topics in OS research. Starting with the explosion of popularity of Napster, researchers have become interested because of the...
Provided by University of Maryland
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White Papers
The Benefit-Cost Analysis of Security Focused Regulations
February 18, 2009, 12:00am PST
Security focused regulations have been largely exempt from the benefit-cost type of analysis required for major Federal regulations and done routinely in areas such as transportation, environment...
Provided by University of Maryland
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White Papers
New WiMAX Forum Lab to Develop Next-Generation Wireless Applications
November 14, 2009, 12:00am PST
With the widespread prevalence of handheld devices like PDAs, Internet Tablets, BlackBerries, and iPhones, people increasingly want and expect to be able to browse the internet at high speed...
Provided by University of Maryland
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White Papers
Integrated Lifecycle of IT Services in a Cloud Environment
October 13, 2009, 12:00am PDT
Virtualized Service models are now emerging and redefining the way information technology is delivered to end users. Current research is focused on specific pieces like service discovery,...
Provided by University of Maryland
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White Papers
Energy Efficient Implementation of G.729 for Wireless VoIP Application
July 1, 2008, 12:00am PDT
This paper describes the formatting guidelines for ACM SIG Proceedings. Traditionally silence in VoIP applications is detected by a VAD algorithm after G.729 compression, both have high...
Provided by University of Maryland
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White Papers
Loss Network Models and Multiple Metric Performance Sensitivity Analysis for Mobile Wireless Multi-Hop Networks
November 19, 2008, 12:00am PST
This paper develops and evaluates a new method for estimating and optimizing various performance metrics of mobile wireless multi-hop networks, including MANETs. The method utilizes approximate...
Provided by University of Maryland
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White Papers
A Pegasus Over WiFi and WiMax Demo: Connectivity at High Speeds
September 29, 2009, 12:00am PDT
This paper presents Pegasus, a system providing wireless connection roaming at high velocities over multiple interfaces. The system operates over WiMax, as well as over "In situ" WiFi networks,...
Provided by University of Maryland
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White Papers
Cloud Computing and Information Policy: Computing in a Policy Cloud?
September 5, 2008, 12:00am PDT
Cloud computing is a computing platform that resides in a large data center and is able to dynamically provide servers the ability to address a wide range of needs, ranging from scientific...
Provided by University of Maryland
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White Papers
Fighting Spam With the NeighborhoodWatch DHT
January 19, 2009, 12:00am PST
This paper presents DHTBL, an anti-spam blacklist built upon a novel secure Distributed Hash Table (DHT). They show how DHTBL can be used to replace existing DNS-based Blacklists (DNSBLs) of IP...
Provided by University of Maryland
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White Papers
Evaluating Attack Resiliency for Host Intrusion Detection Systems
April 1, 2008, 12:00am PDT
Host Intrusion Detection Systems (HIDSs) are important tools used to provide security to computer systems. Many HIDSs exist and security practitioners need a way to determine the optimal security...
Provided by University of Maryland
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White Papers
MPLS Traffic Engineering Using Enhanced Minimum Interference Routing: An Approach Based on Lexicographic Max-Flow
January 1, 2009, 12:00am PST
The main contribution of this paper is a new algorithm for dynamic routing of bandwidth guaranteed tunnels. The algorithm is a generalization of the "minimum-interference" based algorithm. The...
Provided by University of Maryland
-
White Papers
Model-Based Testing of Community-Driven Open-Source GUI Applications
January 1, 2008, 12:00am PST
Although the World-Wide-Web (WWW) has significantly enhanced Open-Source Software (OSS) development, it has also created new challenges for Quality Assurance (QA), especially for OSS with a...
Provided by University of Maryland
-
White Papers
NUMA-Aware Java Heaps for Server Applications
January 1, 2008, 12:00am PST
This paper introduces a set of techniques to both measure and optimize memory access locality of Java applications running on cc-NUMA servers. These techniques work at the object level and use...
Provided by University of Maryland
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White Papers
Rapid "Crash Testing" for Continuously Evolving GUI-Based Software Applications
January 1, 2008, 12:00am PST
Several rapid-feedback-based quality assurance mechanisms are used to manage the quality of continuously evolving software. Even though Graphical User Interfaces (GUIs) are one of the most...
Provided by University of Maryland
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White Papers
Preventing Distributed Denial of Service Attacks by Perturbing TCP Traffic
January 1, 2008, 12:00am PST
This paper discusses a method for preventing Distributed Denial of Service (DDoS) attacks that use spoofed source IP addresses by monitoring TCP traffic. The method requires dropping TCP packets...
Provided by University of Maryland
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White Papers
Illustration-Inspired Techniques for Visualizing Time-Varying Data
January 1, 2008, 12:00am PST
Traditionally, time-varying data has been visualized using snapshots of the individual time steps or an animation of the snapshots shown in a sequential manner. For larger datasets with many...
Provided by University of Maryland
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White Papers
Distributed Data Mining in Peer-to-Peer Networks
January 1, 2008, 12:00am PST
Distributed data mining deals with the problem of data analysis in environments with distributed data, computing nodes, and users. Peer-to-peer computing is emerging as a new distributed computing...
Provided by University of Maryland
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White Papers
Link Mining: A New Data Mining Challenge
January 1, 2008, 12:00am PST
A key challenge for data mining is tackling the problem of mining richly structured datasets, where the objects are linked in some way. Links among the objects may demonstrate certain patterns,...
Provided by University of Maryland
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White Papers
Intrusion Detection System Resiliency to Byzantine Attacks: The Case Study of Wormholes in OLSR
August 24, 2007, 12:00am PDT
This paper proposes a mathematical framework for obtaining performance bounds of Byzantine attackers and the Intrusion Detection System (IDS) in terms of detection delay. It formulates the problem...
Provided by University of Maryland
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White Papers
A Target-Centric Ontology for Intrusion Detection
January 1, 2008, 12:00am PST
This paper has produced an ontology specifying a model of computer attacks. The ontology is based upon an analysis of over 4,000 classes of computer intrusions and their corresponding attack...
Provided by University of Maryland
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White Papers
Electronic Part Obsolescence Driven Product Redesign Optimization
August 17, 2007, 12:00am PDT
Many electronic parts have life cycles that are shorter than the life cycle of the product they are in. Life cycle mismatches caused by the obsolescence of electronic parts result in higher...
Provided by University of Maryland
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White Papers
Secure Routing and Intrusion Detection in Ad Hoc Networks
July 31, 2007, 12:00am PDT
Numerous schemes have been proposed for secure routing and Intrusion Detection for ad hoc networks. Yet, little work exists in actually implementing such schemes on small handheld devices. This...
Provided by University of Maryland
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