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University of Kaiserslautern
(23 results)-
White Papers
A Proposal for a Notion of Timeliness in Wireless Sensor Networks
June 22, 2009, 12:00am PDT
The intrinsic properties of Wireless Sensor Networks (WSN) such as their ad-hoc infrastructure, energy constraints, and limited availability of resources, constitute an unfavorable environment for...
Provided by University of Kaiserslautern
-
White Papers
On The Development Of New Modeling Concepts For Product Lifecycle Management In Engineering Enterprises
April 14, 2010, 12:00am PDT
Fast changes in today globalized business contexts, stricter becoming product and environmental legislations, and increasing complexity of products and related nowadays flexible engineering...
Provided by University of Kaiserslautern
-
White Papers
Measurement and Analysis of Handover Latencies in IEEE 802.11i Secured Networks
March 5, 2007, 12:00am PST
The purpose of the IEEE 802.11i standard is to endue wireless networks with advanced security by leveraging mature and proven security technologies. The concept of a Robust Secure Network (RSN) as...
Provided by University of Kaiserslautern
-
White Papers
Tracking of Vector Field Singularities in Unstructured 3D Time-Dependent Datasets
January 1, 2011, 12:00am PST
In this paper, the authors present an approach for monitoring the positions of vector field singularities in time-dependent datasets. The concept of singularity index is discussed and extended...
Provided by University of Kaiserslautern
-
White Papers
Experimental Design and Analysis of Transmission Properties in an Indoor Wireless Sensor Network
July 7, 2010, 12:00am PDT
In this paper, the authors systematically investigate different factors and their effects on the wireless transmission properties using a full-factorial experimental design of a wireless sensor...
Provided by University of Kaiserslautern
-
White Papers
Enforcing Modeling Guidelines in an ORDBMS-Based UML-Repository
January 1, 2008, 12:00am PST
Due to its rich set of modeling concepts and its broad application spectrum the Unified Modeling Language (UML) has become widely accepted for modeling many aspects of software systems. Since UML...
Provided by University of Kaiserslautern
-
White Papers
Verification of Actor Systems Needs Specification Techniques for Strong Causality and Hierarchical Reasoning
September 20, 2011, 12:00am PDT
Actor languages become increasingly popular for modeling and programming concurrent and distributed system. Although several foundational proof systems are available for actor systems, the authors...
Provided by University of Kaiserslautern
-
White Papers
Worst Case Modelling of Wireless Sensor Networks
August 28, 2006, 12:00am PDT
At the current state of affairs it is hard to obtain a predictable performance from wireless sensor networks, not to mention performance guarantees. In particular, a widely accepted and...
Provided by University of Kaiserslautern
-
White Papers
The DISCO Network Calculator
January 15, 2008, 12:00am PST
Network calculus was developed for use in IP and ATM networks. It aims to be a system theory for deterministic queuing, allowing to derive deterministic guarantees on throughput and delay, as well...
Provided by University of Kaiserslautern
-
White Papers
End-to-End Worst-Case Analysis of Non-FIFO Systems
September 1, 2008, 12:00am PDT
In this paper, delay bounds in data flow systems with non-FIFO service disciplines are explored. It is shown that conventional network calculus definitions of a service curve are not satisfying...
Provided by University of Kaiserslautern
-
White Papers
Enabling Authentic Transmissions in WSNs - Turning Jamming Against the Attacker
September 5, 2008, 12:00am PDT
Traditional methods for message authentication are based on the cryptographic verification of received data using some sort of a shared secret. While this task is not critical for traditional...
Provided by University of Kaiserslautern
-
White Papers
Firewalling Wireless Sensor Networks: Security by Wireless
July 28, 2008, 12:00am PDT
Networked sensors and actuators for purposes from production monitoring and control to home automation are in increasing demand. Until recently, the main focus laid on wired systems, although...
Provided by University of Kaiserslautern
-
White Papers
Achieving High Lifetime and Low Delay in Very Large Sensors Networks Using Mobile Sinks
April 4, 2012, 12:00am PDT
For smaller scale Wireless Sensor Networks (WSN) it has been clearly shown that a single mobile sink can be very beneficial with respect to the network lifetime. Yet, how to plan the trajectories...
Provided by University of Kaiserslautern
-
White Papers
Practical Message Manipulation Attacks in IEEE 802.15.4 Wireless Networks
March 26, 2012, 12:00am PDT
The authors assess the ability of adversaries to modify the content of messages on the physical layer of wireless networks. In contrast to related work, they consider signal overshadowing to...
Provided by University of Kaiserslautern
-
White Papers
Planning the Trajectories of Multiple Mobile Sinks in Large-Scale, Time-Sensitive WSNs
April 24, 2011, 12:00am PDT
Controlled sink mobility has been shown to be very beneficial in lifetime prolongation of Wireless Sensor Networks (WSNs) by avoiding the typical hot-spot problem near the sink. Besides striving...
Provided by University of Kaiserslautern
-
White Papers
Statistical Response Time Bounds in Randomly Deployed Wireless Sensor Networks
August 12, 2010, 12:00am PDT
Response time bounds are important for many application scenarios of Wireless Sensor Networks (WSN). Often, during the planning phase of a WSN its topology is not known. It rather results from a...
Provided by University of Kaiserslautern
-
White Papers
Searching for Tight Performance Bounds in Feed-Forward Networks
December 17, 2009, 12:00am PST
Computing tight performance bounds in feed-forward networks under general assumptions about arrival and server models has turned out to be a challenging problem. Recently it was even shown to be...
Provided by University of Kaiserslautern
-
White Papers
On the Way to a Wireless Network Calculus - The Single Node Case With Retransmissions
January 28, 2010, 12:00am PST
During the last two decades, network calculus has evolved as a new theory for the performance analysis of networked systems. In contrast to classical queueing theory, it deals with performance...
Provided by University of Kaiserslautern
-
White Papers
Self-Organized Sink Placement in Large-Scale Wireless Sensor Networks
June 15, 2009, 12:00am PDT
The deficient energy supplies of Wireless Sensor Networks (WSNs) drives network designers to optimize energy consumption in various ways. Not only with regard to the energy issue, but also with...
Provided by University of Kaiserslautern
-
White Papers
Placing Multiple Sinks in Time-Sensitive Wireless Sensor Networks Using a Genetic Algorithm
January 15, 2008, 12:00am PST
Performance issues in Wireless Sensor Networks (WSNs) play a vital role in many applications. Often the maximum allowable message transfer delay must be bounded in order to enable time-sensitive...
Provided by University of Kaiserslautern
-
White Papers
Web Services for Sensor Node Access
January 1, 2008, 12:00am PST
Some research areas rely on simulation instead of experiments. And these simulation scenarios need a suitable data basis to operate on. Besides existing databases containing previously acquired or...
Provided by University of Kaiserslautern
-
White Papers
Assertion Support for Manipulating Constrained Data-Centric XML
December 16, 2008, 12:00am PST
XML is used for different purposes. They are interested in data-centric applications of XML where it is used to handle structured data in loosely coupled, distributed systems. In many such...
Provided by University of Kaiserslautern
-
White Papers
AmICom - Middleware Support for Ambient Communication
January 1, 2008, 12:00am PST
Intelligent environments are based on services that are deployed on hardware nodes that communicate among each other. Generic and light-weight communication middleware for service interaction is...
Provided by University of Kaiserslautern
-
White Papers
Placing Multiple Sinks in Time-Sensitive Wireless Sensor Networks Using a Genetic Algorithm
January 15, 2008, 12:00am PST
Performance issues in Wireless Sensor Networks (WSNs) play a vital role in many applications. Often the maximum allowable message transfer delay must be bounded in order to enable time-sensitive...
Provided by University of Kaiserslautern
-
White Papers
Self-Organized Sink Placement in Large-Scale Wireless Sensor Networks
June 15, 2009, 12:00am PDT
The deficient energy supplies of Wireless Sensor Networks (WSNs) drives network designers to optimize energy consumption in various ways. Not only with regard to the energy issue, but also with...
Provided by University of Kaiserslautern
-
White Papers
On the Way to a Wireless Network Calculus - The Single Node Case With Retransmissions
January 28, 2010, 12:00am PST
During the last two decades, network calculus has evolved as a new theory for the performance analysis of networked systems. In contrast to classical queueing theory, it deals with performance...
Provided by University of Kaiserslautern
-
White Papers
Searching for Tight Performance Bounds in Feed-Forward Networks
December 17, 2009, 12:00am PST
Computing tight performance bounds in feed-forward networks under general assumptions about arrival and server models has turned out to be a challenging problem. Recently it was even shown to be...
Provided by University of Kaiserslautern
-
White Papers
Statistical Response Time Bounds in Randomly Deployed Wireless Sensor Networks
August 12, 2010, 12:00am PDT
Response time bounds are important for many application scenarios of Wireless Sensor Networks (WSN). Often, during the planning phase of a WSN its topology is not known. It rather results from a...
Provided by University of Kaiserslautern
-
White Papers
Planning the Trajectories of Multiple Mobile Sinks in Large-Scale, Time-Sensitive WSNs
April 24, 2011, 12:00am PDT
Controlled sink mobility has been shown to be very beneficial in lifetime prolongation of Wireless Sensor Networks (WSNs) by avoiding the typical hot-spot problem near the sink. Besides striving...
Provided by University of Kaiserslautern
-
White Papers
Practical Message Manipulation Attacks in IEEE 802.15.4 Wireless Networks
March 26, 2012, 12:00am PDT
The authors assess the ability of adversaries to modify the content of messages on the physical layer of wireless networks. In contrast to related work, they consider signal overshadowing to...
Provided by University of Kaiserslautern
-
White Papers
Achieving High Lifetime and Low Delay in Very Large Sensors Networks Using Mobile Sinks
April 4, 2012, 12:00am PDT
For smaller scale Wireless Sensor Networks (WSN) it has been clearly shown that a single mobile sink can be very beneficial with respect to the network lifetime. Yet, how to plan the trajectories...
Provided by University of Kaiserslautern
-
White Papers
Firewalling Wireless Sensor Networks: Security by Wireless
July 28, 2008, 12:00am PDT
Networked sensors and actuators for purposes from production monitoring and control to home automation are in increasing demand. Until recently, the main focus laid on wired systems, although...
Provided by University of Kaiserslautern
-
White Papers
Enabling Authentic Transmissions in WSNs - Turning Jamming Against the Attacker
September 5, 2008, 12:00am PDT
Traditional methods for message authentication are based on the cryptographic verification of received data using some sort of a shared secret. While this task is not critical for traditional...
Provided by University of Kaiserslautern
-
White Papers
End-to-End Worst-Case Analysis of Non-FIFO Systems
September 1, 2008, 12:00am PDT
In this paper, delay bounds in data flow systems with non-FIFO service disciplines are explored. It is shown that conventional network calculus definitions of a service curve are not satisfying...
Provided by University of Kaiserslautern
-
White Papers
The DISCO Network Calculator
January 15, 2008, 12:00am PST
Network calculus was developed for use in IP and ATM networks. It aims to be a system theory for deterministic queuing, allowing to derive deterministic guarantees on throughput and delay, as well...
Provided by University of Kaiserslautern
-
White Papers
Worst Case Modelling of Wireless Sensor Networks
August 28, 2006, 12:00am PDT
At the current state of affairs it is hard to obtain a predictable performance from wireless sensor networks, not to mention performance guarantees. In particular, a widely accepted and...
Provided by University of Kaiserslautern
-
White Papers
Verification of Actor Systems Needs Specification Techniques for Strong Causality and Hierarchical Reasoning
September 20, 2011, 12:00am PDT
Actor languages become increasingly popular for modeling and programming concurrent and distributed system. Although several foundational proof systems are available for actor systems, the authors...
Provided by University of Kaiserslautern
-
White Papers
Experimental Design and Analysis of Transmission Properties in an Indoor Wireless Sensor Network
July 7, 2010, 12:00am PDT
In this paper, the authors systematically investigate different factors and their effects on the wireless transmission properties using a full-factorial experimental design of a wireless sensor...
Provided by University of Kaiserslautern
-
White Papers
Tracking of Vector Field Singularities in Unstructured 3D Time-Dependent Datasets
January 1, 2011, 12:00am PST
In this paper, the authors present an approach for monitoring the positions of vector field singularities in time-dependent datasets. The concept of singularity index is discussed and extended...
Provided by University of Kaiserslautern
-
White Papers
Measurement and Analysis of Handover Latencies in IEEE 802.11i Secured Networks
March 5, 2007, 12:00am PST
The purpose of the IEEE 802.11i standard is to endue wireless networks with advanced security by leveraging mature and proven security technologies. The concept of a Robust Secure Network (RSN) as...
Provided by University of Kaiserslautern
-
White Papers
On The Development Of New Modeling Concepts For Product Lifecycle Management In Engineering Enterprises
April 14, 2010, 12:00am PDT
Fast changes in today globalized business contexts, stricter becoming product and environmental legislations, and increasing complexity of products and related nowadays flexible engineering...
Provided by University of Kaiserslautern
-
White Papers
A Proposal for a Notion of Timeliness in Wireless Sensor Networks
June 22, 2009, 12:00am PDT
The intrinsic properties of Wireless Sensor Networks (WSN) such as their ad-hoc infrastructure, energy constraints, and limited availability of resources, constitute an unfavorable environment for...
Provided by University of Kaiserslautern
-
White Papers
AmICom - Middleware Support for Ambient Communication
January 1, 2008, 12:00am PST
Intelligent environments are based on services that are deployed on hardware nodes that communicate among each other. Generic and light-weight communication middleware for service interaction is...
Provided by University of Kaiserslautern
-
White Papers
Assertion Support for Manipulating Constrained Data-Centric XML
December 16, 2008, 12:00am PST
XML is used for different purposes. They are interested in data-centric applications of XML where it is used to handle structured data in loosely coupled, distributed systems. In many such...
Provided by University of Kaiserslautern
-
White Papers
Web Services for Sensor Node Access
January 1, 2008, 12:00am PST
Some research areas rely on simulation instead of experiments. And these simulation scenarios need a suitable data basis to operate on. Besides existing databases containing previously acquired or...
Provided by University of Kaiserslautern
-
White Papers
Enforcing Modeling Guidelines in an ORDBMS-Based UML-Repository
January 1, 2008, 12:00am PST
Due to its rich set of modeling concepts and its broad application spectrum the Unified Modeling Language (UML) has become widely accepted for modeling many aspects of software systems. Since UML...
Provided by University of Kaiserslautern
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