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University of Maryland University College
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Can There Be a Standard in Service Level Agreements for Cloud Computing?
December 1, 2008, 12:00am PST
Cloud computing is changing everything; every day new topics on the subject emerge. Data of every type is being placed within the cloud. In doing this, there is much uncertainty and fear as the...
Provided by University of Maryland
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Is There a Cloud in Your Future?: Applications of "Cloud Computing" to Web-Scale Problems
March 17, 2008, 12:00am PDT
Cloud computing refers to technology for exploiting large computer clusters to tackle "Web-scale" information processing problems, where immense quantities of data make traditional sequential...
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White Papers
Cloud-Based Decision Support Systems and Availability Context: The Probability of Successful Decision Outcomes
May 27, 2009, 12:00am PDT
In an age of cloud computing, mobile users, and wireless networks, the availability of decision support related computing resources can no longer guarantee five-nines (99.999%) availability but...
Provided by University of Maryland
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White Papers
PEGASUS: 802.11 Connectivity at High Speed
September 9, 2007, 12:00am PDT
Measurements and ongoing research have shown that WLAN connection for moving vehicles is feasible. However none of the previous works suggests a solution addressing a complete array of the...
Provided by University of Maryland
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Maranello: Practical Partial Packet Recovery for 802.11
March 2, 2010, 12:00am PST
Partial packet recovery protocols attempt to repair corrupted packets instead of retransmitting them in their entirety. Recent approaches have used physical layer confidence estimates or...
Provided by University of Maryland
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White Papers
New Directions In Goal-Setting Theory
November 7, 2007, 12:00am PST
Goal-setting theory is summarized regarding the effectiveness of specific, difficult goals; the relationship of goals to affect; the mediators of goal effects; the relation of goals to...
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Finding and Removing Performance Bottlenecks in Large Systems
January 1, 2011, 12:00am PST
Software systems obey the 80/20 rule: aggressively optimizing a vital few execution paths yields large speedups. However, finding the vital few paths can be difficult, especially for large systems...
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White Papers
Crafting Integrated Multichannel Retailing Strategies
January 1, 2010, 12:00am PST
Multichannel retailing is the set of activities involved in selling merchandise or services to consumers through more than one channel. Multichannel retailers dominate today's retail landscape....
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Sub-Saharan Growth Surprises: Geography, Institutions And History in an all African Data Panel
September 1, 2010, 12:00am PDT
The authors use two types of cross-country growth regression models to revisit explanations of slow growth in Africa looking at growth rate variation among African countries only. Both sets of...
Provided by University of Maryland
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White Papers
Improved Data Acquisition System for CREAM-III
June 19, 2007, 12:00am PDT
The CREAM (Cosmic Ray Energetics And Mass) Data AcQuisition (CDAQ) system showed excellent stability and robustness during the 2004/05 and 2005/06 Antarctic campaigns. One improvement for the...
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White Papers
Integrating DFM With CAD Through Design Critiquing
September 27, 2010, 12:00am PDT
The increasing focus on Design For Manufacturability (DFM) in research in concurrent engineering and engineering design is expanding the scope of traditional design activities in order to identify...
Provided by University of Maryland
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White Papers
Network Connectivity and Related Optimization Problems on Random Graphs
December 23, 2009, 12:00am PST
Network connectivity and propagation problems arise naturally in many social networks. The authors examine problems where some property, such as an infection or influence, starts from some...
Provided by University of Maryland
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Passive Aggressive Measurement With MGRP
August 21, 2009, 12:00am PDT
The authors present the Measurement Manager Protocol (MGRP), an in-kernel service that schedules and transmits probes on behalf of active measurement tools. Unlike prior measurement services, MGRP...
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Improving Connectivity Via Relays Deployment in Wireless Sensor Networks
October 27, 2007, 12:00am PDT
Enhancing the connectivity of wireless sensor networks is necessary to avoid the occurrence of coverage gaps. This paper aims at improving the network connectivity of a given network by adding a...
Provided by University of Maryland
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White Papers
Content-Aware Cooperative Multiple Access Protocol for Packet Speech Communications
August 26, 2007, 12:00am PDT
A novel cooperative multiple access protocol for packet speech communications is proposed. Cooperation is achieved through a relay node and by exploiting the silence periods during speech...
Provided by University of Maryland
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White Papers
Synchronization-Aware Distributed Space-Time Codes in Wireless Relay Networks
July 15, 2007, 12:00am PDT
This paper considers the design of synchronization-aware distributed space-time codes, which the authors denote as Diagonal Distributed Space-Time Codes (DDSTC), for N relay nodes helping the...
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Resilient Multicast Using Overlays
January 1, 2011, 12:00am PST
This paper introduces PRM (Probabilistic Resilient Multicast): a multicast data recovery scheme that improves data delivery ratios while maintaining low end-to-end latencies. PRM has both a...
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Distribution of Path Durations in Mobile Ad-Hoc Networks - Palm's Theorem to the Rescue
January 1, 2011, 12:00am PST
The authors first study the distribution of path duration in multi-hop wireless networks. This paper shows that as the number of hops along a path increases, the path duration distribution can be...
Provided by University of Maryland
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An Empirical Investigation Into the Adoption of Open Source Software in Hospitals
July 1, 2008, 12:00am PDT
Open source software (OSS) has gained considerable attention recently in health care. Yet, how and why OSS is being adopted within hospitals in particular remains a poorly understood issue. This...
Provided by University of Maryland
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Bridging the Gap Between Business Strategy and Software Development
August 23, 2007, 12:00am PDT
In software-intensive organizations, an organizational management system will not guarantee organizational success unless the business strategy can be translated into a set of operational software...
Provided by University of Maryland
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White Papers
Ontology-Driven Adaptive Sensor Networks
January 1, 2011, 12:00am PST
A wireless sensor network deployed in an area of interest is affected by variations in environmental conditions associated with that area. It must adapt to these variations in order to continue...
Provided by University of Maryland
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White Papers
Towards Dynamic Adaptive Automated Test Generation for Graphical User Interfaces
March 21, 2009, 12:00am PDT
Graphical User Interfaces (GUIs) present an enormous number of potential event sequences to users. During testing it is necessary to cover this space, however the complexity of modern GUIs has...
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An Initial Characterization of Industrial Graphical User Interface Systems
January 13, 2009, 12:00am PST
To date the authors have developed and applied numerous model-based GUI testing techniques; however, they are unable to provide definitive improvement schemes to real-world GUI test planners, as...
Provided by University of Maryland
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An Extensible Heuristic-Based Framework for GUI Test Case Maintenance
March 15, 2009, 12:00am PDT
Graphical User Interfaces (GUIs) make up a large portion of the code comprising many modern software applications. However, GUI testing differs significantly from testing of traditional software....
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Relationships Between Test Suites, Faults, and Fault Detection in GUI Testing
January 18, 2008, 12:00am PST
Software-testing researchers have long sought recipes for test suites that detect faults well. In the literature, empirical studies of testing techniques abound, yet the ideal technique for...
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Alternating GUI Test Generation and Execution
June 24, 2008, 12:00am PDT
Users of today's software perform tasks by interacting with a Graphical User Interface (GUI) front-end via sequences of input events. Due to the flexibility offered by most GUIs, the number of...
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Locksmith: Practical Static Race Detection for C
August 4, 2010, 12:00am PDT
Locksmith is a static analysis tool for automatically detecting data races in C programs. In this paper, the authors describe each of Locksmith's component analyses precisely, and present...
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Dynamic Inference of Static Types for Ruby
July 23, 2010, 12:00am PDT
There have been several efforts to bring static type inference to object-oriented dynamic languages such as Ruby, Python, and Perl. In authors' experience, however, such type inference systems are...
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Position Paper: Dynamically Inferred Types for Dynamic Languages
January 15, 2011, 12:00am PST
Over the past few years the authors have been developing Diamondback Ruby (DRuby), a tool that brings static type inference to Ruby, a dynamically typed, object-oriented language. Developing DRuby...
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Memory Model Sensitive Bytecode Verification
October 29, 2007, 12:00am PDT
Modern concurrent programming languages like C# and Java have a programming language level memory model, which captures the set of all allowed behaviors of programs on any implementation platform...
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White Papers
Trans-Modulation in Wireless Relay Networks
December 12, 2007, 12:00am PST
In this letter, the authors consider the trans-modulation design for the decode-and-forward relay networks. They propose to reassign the constellation points at the relay nodes to minimize the...
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White Papers
A Game Theoretic Approach Toward Multi-Party Privacy-Preserving Distributed Data Mining
January 1, 2011, 12:00am PST
Analysis of privacy-sensitive data in a multi-party environment often assumes that the parties are well-behaved and they abide by the protocols. Parties compute whatever is needed, communicate...
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On the Privacy Preserving Properties of Random Data Perturbation Techniques
January 1, 2011, 12:00am PST
Privacy is becoming an increasingly important issue in many data mining applications. This has triggered the development of many privacy-preserving data mining techniques. A large fraction of them...
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Privacy-Preserving Data Analysis on Graphs and Social Networks
March 30, 2008, 12:00am PDT
While literature within the field of Privacy-Preserving Data Mining (PPDM) has been around for many years, attention has mostly been given to the perturbation and anonymization of tabular data;...
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A Survey of Attack Techniques on Privacy-Preserving Data Perturbation Methods
September 3, 2007, 12:00am PDT
The authors focus primarily on the use of additive and matrix multiplicative data perturbation techniques in Privacy Preserving Data Mining (PPDM). They survey a recent body of research aimed at...
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A Scalable Local Algorithm for Distributed Multivariate Regression
May 22, 2008, 12:00am PDT
This paper offers a local distributed algorithm for multivariate regression in large peer-to-peer environments. The algorithm can be used for distributed inferencing, data compaction, data...
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Authenticated Broadcast With a Partially Compromised Public-Key Infrastructure
August 24, 2009, 12:00am PDT
Given a Public-Key Infrastructure (PKI) and digital signatures, it is possible to construct broadcast protocols tolerating any number of corrupted parties. Almost all existing protocols, however,...
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White Papers
Retrofitting Security in COTS Software With Binary Rewriting
January 27, 2011, 12:00am PST
The authors present a practical tool for inserting security features against low-level software attacks into third-party, proprietary or otherwise binary-only software. They are motivated by the...
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Security for Sensor Networks
January 1, 2011, 12:00am PST
Sensor networks have been identified as being useful in a variety of domains to include the battlefield and perimeter defense. The authors motivate the security problems that sensor networks face...
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White Papers
A Policy and Trust Driven Framework for Securing Cyber Physical Systems
July 14, 2009, 12:00am PDT
Cyber Physical Systems play a crucial role in national infrastructure and securing them is of vital importance to national security. There has been ample evidence in the recent past exposing the...
Provided by University of Maryland
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Whitepapers
A Framework for Network State Management in the Next-Generation Internet Architecture
August 8, 2008, 12:00am PDT
In the next-generation Internet architecture, more functionality will be placed in the data path of routers in the form of "Services" and other packet processing features. This trend will increase...
Provided by University of Maryland University College
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Whitepapers
Workload Generation and Instrumentation for Reproducible Networking Experiments
April 11, 2009, 12:00am PDT
The authors propose the design of a benchmarking and instrumentation component for the GENI experimental networking test-bed. Their design uses a workload generation system to create reproducible...
Provided by University of Maryland University College
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Whitepapers
Design of a System to Track Student Progress in Virtual Laboratories
March 23, 2009, 12:00am PDT
Laboratories are an important part of technical and scientific education. To amortize the cost of setup and maintenance, some laboratory facilities can be shared and via remote network access....
Provided by University of Maryland University College
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Whitepapers
Practical Packet Pacing in Small-Buffer Networks
February 25, 2009, 12:00am PST
The demand for more bandwidth has lead to proposals for an all-optical network core. Due to inherent constraints of optical technology, only routers with small packet buffers are feasible to be...
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Whitepapers
Evaluating Algorithms for Composable Service Placement in Computer Networks
February 27, 2009, 12:00am PST
Novel network architectures with distributed service components on both routers and end-systems have been proposed to provide the necessary flexibility in the next-generation Internet. Such...
Provided by University of Maryland University College
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Whitepapers
Support for Dynamic Adaptation in Next Generation Packet Processing Systems
February 27, 2009, 12:00am PST
Designs of next-generation Internet architectures propose a diverse and changing set of features in the data path of routers. These routers require high-performance programmable packet processing...
Provided by University of Maryland University College
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Whitepapers
Automated Service Composition in Next-Generation Networks
March 19, 2009, 12:00am PDT
Dynamic composition of protocol features allows applications to establish connections with custom communication characteristics. Automatically computing possible compositions and checking given...
Provided by University of Maryland University College
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Whitepapers
A High-Performance Capabilities-Based Network Protocol
August 9, 2009, 12:00am PDT
Capabilities-based networks present a fundamental shift in the security design of network architectures. Instead of permitting the transmission of packets from any source to any destination,...
Provided by University of Maryland University College
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Whitepapers
Runtime Resource Allocation in Multi-Core Packet Processing Systems
May 21, 2009, 12:00am PDT
Packet forwarding operations in network systems are often performed in software so that routers can be updated as new protocols and service features are developed. To meet the processing demands...
Provided by University of Maryland University College
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Whitepapers
Burstiness as Traffic Metric in Next-Generation Optical Core Networks
March 23, 2009, 12:00am PDT
Next-generation all-optical packet-switched core networks use very small packet buffers. The authors argue that it is essential to focus on burstiness rather than bandwidth when conditioning...
Provided by University of Maryland University College
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Whitepapers
AnomBench: A Benchmark for Volume-Based Internet Anomaly Detection
August 10, 2009, 12:00am PDT
Developing algorithms to detect anomalies in network traffic is an important goal to achieve secure and efficient operation of the Internet. To evaluate different algorithms, it is crucial to have...
Provided by University of Maryland University College
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Whitepapers
Design of a Secure Router System for Next-Generation Networks
July 23, 2009, 12:00am PDT
Computer networks are vulnerable to attacks, where the network infrastructure itself is targeted. Emerging router designs, which use software-programmable embedded processors, increase the...
Provided by University of Maryland University College
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Whitepapers
Techniques for Policy Enforcement on Encrypted Network Traffic
August 19, 2009, 12:00am PDT
Most large-scale data communication net-works are built from multiple autonomous sub-networks, which are managed by different administrative entities. In many practical environments, information...
Provided by University of Maryland University College
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Whitepapers
Evaluation of Path Recording Techniques in Secure MANET
August 19, 2009, 12:00am PDT
Secure operation of mobile ad-hoc networks requires the ability to track the flow of traffic through the network. Knowledge of the path of a packet allows inference of correct operation or...
Provided by University of Maryland University College
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Whitepapers
A Practical On-Line Pacing Scheme at Edges of Small Buffer Networks
December 18, 2009, 12:00am PST
For the optical packet-switching routers to be widely deployed in the Internet, the size of packet buffers on routers has to be significantly small. Such small-buffer networks rely on traffic with...
Provided by University of Maryland University College
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Whitepapers
Convergence of Communication and Processing in Next-Generation Networks
February 9, 2010, 12:00am PST
The authors argue that applications can benefit from the offloading of processing tasks into the data path of next-generation networks, where custom packet processing functions can be implemented....
Provided by University of Maryland University College
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Whitepapers
Data Path Management in Mesh-Based Programmable Routers
February 10, 2010, 12:00am PST
With dozens to hundreds of processing cores deployed in next generation packet processor, regular topologies such as mesh are widely adopted in Network-on-Chip design to provide scalable...
Provided by University of Maryland University College
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Whitepapers
Implementation of a Simplified Network Processor
April 7, 2010, 12:00am PDT
Programmable packet processors have replaced traditional fixed-function custom logic in the data path of routers. Programmability of these systems allows the introduction of new packet processing...
Provided by University of Maryland University College
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Whitepapers
Enforcement of Data-Plane Policies in Next-Generation Networks
May 2, 2010, 12:00am PDT
Modern networks not only forward traffic, but also perform a variety of processing operations on packets (e.g., content inspection, transcoding, QoS scheduling). Such dataplane operations cannot...
Provided by University of Maryland University College
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Whitepapers
A Taxonomy and Comparative Evaluation of Algorithms for Parallel Anomaly Detection
May 4, 2010, 12:00am PDT
Anomaly detection in network traffic is an important technique for identifying operation and security problems in networks. Numerous anomaly detection algorithms have been proposed and deployed in...
Provided by University of Maryland University College
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Whitepapers
Automated Service Composition and Routing in Networks With Data-Path Services
May 4, 2010, 12:00am PDT
Advanced packet processing in the data path of networks is common in the current Internet and is expanding to next-generation networks. Dynamic composition of such "Network services" allows...
Provided by University of Maryland University College
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Whitepapers
A Study of the Impact of Network Traffic Pacing From Network and End-User Perspectives
May 9, 2011, 12:00am PDT
As the demand on the Internet bandwidth keeps increasing, all-optical network architectures emerge as a promising solution to high-speed telecommunication networks. However, the performance of...
Provided by University of Maryland University College
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Whitepapers
High-Performance Implementation of In-Network Traffic Pacing
July 4, 2011, 12:00am PDT
Optical packet switching networks promise to provide high-speed data communication and serve as the foundation of the future Internet. A key technological problem is the very small size of packet...
Provided by University of Maryland University College
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Whitepapers
Attacks on Network Infrastructure
May 15, 2011, 12:00am PDT
The authors present the first practical example of an entirely new class of network attacks - attacks that target the network infrastructure. Modern routers in computer networks use...
Provided by University of Maryland University College
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Whitepapers
Encrypted Packet Forwarding in Virtualized Networks
August 12, 2011, 12:00am PDT
Virtualized networks provide a shared infrastructure platform for hosting multiple independent networks with different protocol stacks. The infrastructure and the virtual networks are operated by...
Provided by University of Maryland University College
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Whitepapers
Security Issues in Network Virtualization for the Future Internet
May 30, 2011, 12:00am PDT
Network virtualization is a key technology that is necessary to support diverse protocol suites in the future Internet. A virtualized network uses a single physical infrastructure to support...
Provided by University of Maryland University College
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Whitepapers
Efficient Conflict Detection in Flow-Based Virtualized Networks
July 24, 2011, 12:00am PDT
In the current Internet, traffic is routed at the level of destination prefixes. The next-generation Internet requires control of traffic at the level of flows or flow aggregates. To accommodate...
Provided by University of Maryland University College
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Whitepapers
Virtual Network Mapping With Traffic Matrices
February 9, 2012, 12:00am PST
Network virtualization is a core technology in next-generation networks to overcome the ossification problem that is observed in the current Internet. The key idea of network virtualization is to...
Provided by University of Maryland University College
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Whitepapers
Packet Forwarding Misbehavior Detection in Next-Generation Networks
February 10, 2012, 12:00am PST
The next-generation Internet promises to provide a fundamental shift in the underlying architecture to support dynamic deployment of network protocols. With the introduction of programmability and...
Provided by University of Maryland University College
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Whitepapers
Saving Energy and Improving TCP Throughput With Rate Adaptation in Ethernet
February 9, 2012, 12:00am PST
Reducing the power consumption of network inter-faces contributes to lowering the overall power needs of the compute and communication infrastructure. Most modern Ethernet interfaces can operate...
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Whitepapers
Automated Sensor Verification Using Outlier Detection in the Internet of Things
April 1, 2012, 12:00am PDT
Cyber-physical systems uses sensors, actuators, and computation to solve problems that cross the physical world and computational world. Traditionally, the systems have been designed to be...
Provided by University of Maryland University College
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Whitepapers
VNMBench: A Benchmark for Virtual Network Mapping Algorithms
May 10, 2012, 12:00am PDT
The network architecture of the current Internet cannot accommodate the deployment of novel network-layer protocols. To address this fundamental problem, network virtualization has been proposed,...
Provided by University of Maryland University College
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Whitepapers
High-Speed Prefix-Preserving IP Address Anonymization for Passive Measurement Systems
January 1, 2012, 12:00am PST
Passive network measurement and packet header trace collection are vital tools for network operation and research. To protect a user's privacy, it is necessary to anonymize header fields,...
Provided by University of Maryland University College
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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...
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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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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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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
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
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
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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