- Subscribe to this page:
- RSS
- Email Alert
University of Bremen
(16 results)-
White Papers
Verifying UML/OCL Models Using Boolean Satisfiability
December 17, 2009, 12:00am PST
Nowadays, modeling languages like UML are essential in the design of complex software systems and also start to enter the domain of hardware and hardware/software codesign. Due to shortening...
Provided by University of Bremen
-
White Papers
Modeling and Formally Checking Workflow Properties Using UML and OCL
March 20, 2010, 12:00am PDT
In this paper a new metamodel for workflows is described by using UML. The underlying UML class diagram is formally extended with OCL pre- and postconditions for operations and OCL invariants for...
Provided by University of Bremen
-
White Papers
Context Routing in Wireless Sensor Networks
November 7, 2006, 12:00am PST
Nowadays wireless communication becomes more and more popular. A large variety tending from Wireless Personal Area Networks (WPAN) to Wireless Regional Area Networks (WRAN) and Satellite...
Provided by University of Bremen
-
White Papers
Generic XML-Based Framework for Metadata Portals
February 9, 2008, 12:00am PST
This paper presents a generic and flexible framework for building geoscientific metadata portals independent of content standards for metadata and protocols. Data can be harvested with commonly...
Provided by University of Bremen
-
White Papers
Security in Open Model Software With Hardware Virtualization - The Railway Control System Perspective
August 10, 2010, 12:00am PDT
Using the openETCS initiative as a starting point, this paper describes how open software can be applied in combination with platform-specific, potentially closed source extensions, in the...
Provided by University of Bremen
-
White Papers
Analysis of UDP, TCP and Voice Performance in IEEE 802.11b Multihop Networks
February 26, 2007, 12:00am PST
The authors investigate the performance of UDP, TCP and voice in a static wireless multihop network experimentally and by simulation. Measurements are carried out in a network consisting of eight...
Provided by University of Bremen
-
White Papers
Tracing Properties of UML and OCL Models With Maude
July 4, 2011, 12:00am PDT
The starting point of this paper is a system described in form of a UML class diagram where system states are characterized by OCL invariants and system transitions are defined by OCL pre- and...
Provided by University of Bremen
-
White Papers
Proposed a Method for Increasing the Delivery Performance in Dynamic Supply Network
November 4, 2010, 12:00am PDT
Supply network management adopts a systematic and integrative approach to managing the operations and relationships of various parties in a supply network. The objective of the manufactures in...
Provided by University of Bremen
-
White Papers
Opportunistic Distance-Aware Routing in Multi-Sink Mobile Wireless Sensor Networks
July 27, 2009, 12:00am PDT
Wireless sensor networks are a research area of growing importance within the wireless networks research community. One of the major issues in this area is the search for efficient routing...
Provided by University of Bremen
-
White Papers
Relative Downlink Channel Calibration in OFDM Systems With CORDIC QR Decomposition
July 18, 2011, 12:00am PDT
Mismatched front-ends reduce the performance of precoding in multi-antenna OFDM systems, which results in a poor bit error rate. With a relative downlink channel calibration the transmission...
Provided by University of Bremen
-
White Papers
Two-Hop Relay-Systems With OFDM-IDM Space-Time Coding
June 15, 2011, 12:00am PDT
In mobile communication systems pathloss and shadowing are two of the main limiting factors. In order to overcome these effects, relaying has been identified as a very promising technique. In...
Provided by University of Bremen
-
White Papers
Decode-Quantize-Forward for OFDM-Based Relaying Systems
June 22, 2011, 12:00am PDT
In this paper, the authors present a new relaying protocol for coded OFDM-based relaying systems. The classical Decode-Forward (DF) protocol exploits the coding gain within the relay, however the...
Provided by University of Bremen
-
White Papers
Optimal Sample Rate for Wireless Sensor Actuator Network
November 13, 2009, 12:00am PST
In order to implement a wireless sensor network in process automation applications, it is needed to specify the sample rate for the sensors. Because of the hardware and power supply limitations,...
Provided by University of Bremen
-
White Papers
Graph Transformations on the UML Metamodel
November 7, 2007, 12:00am PST
The Unified Modeling Language UML is a rich language so that it seems not feasible to give a single semantics for the complete language in one step. In order to define the semantics, this paper...
Provided by University of Bremen
-
White Papers
Security in Open Model Software With Hardware Virtualisation - The Railway Control System Perspective
December 10, 2010, 12:00am PST
Using the openETCS initiative as a starting point, the authors describe how open software can be applied in combination with platform-specific, potentially closed-source extensions, in the...
Provided by University of Bremen
-
White Papers
From C++ Refactorings to Graph Transformations
February 20, 2007, 12:00am PST
In this paper, the authors study a metamodel for the C++ programming language. They work out refactorings on the C++ metamodel and present the essentials as graph transformations. The refactorings...
Provided by University of Bremen
-
White Papers
From C++ Refactorings to Graph Transformations
February 20, 2007, 12:00am PST
In this paper, the authors study a metamodel for the C++ programming language. They work out refactorings on the C++ metamodel and present the essentials as graph transformations. The refactorings...
Provided by University of Bremen
-
White Papers
Security in Open Model Software With Hardware Virtualisation - The Railway Control System Perspective
December 10, 2010, 12:00am PST
Using the openETCS initiative as a starting point, the authors describe how open software can be applied in combination with platform-specific, potentially closed-source extensions, in the...
Provided by University of Bremen
-
White Papers
Optimal Sample Rate for Wireless Sensor Actuator Network
November 13, 2009, 12:00am PST
In order to implement a wireless sensor network in process automation applications, it is needed to specify the sample rate for the sensors. Because of the hardware and power supply limitations,...
Provided by University of Bremen
-
White Papers
Decode-Quantize-Forward for OFDM-Based Relaying Systems
June 22, 2011, 12:00am PDT
In this paper, the authors present a new relaying protocol for coded OFDM-based relaying systems. The classical Decode-Forward (DF) protocol exploits the coding gain within the relay, however the...
Provided by University of Bremen
-
White Papers
Two-Hop Relay-Systems With OFDM-IDM Space-Time Coding
June 15, 2011, 12:00am PDT
In mobile communication systems pathloss and shadowing are two of the main limiting factors. In order to overcome these effects, relaying has been identified as a very promising technique. In...
Provided by University of Bremen
-
White Papers
Relative Downlink Channel Calibration in OFDM Systems With CORDIC QR Decomposition
July 18, 2011, 12:00am PDT
Mismatched front-ends reduce the performance of precoding in multi-antenna OFDM systems, which results in a poor bit error rate. With a relative downlink channel calibration the transmission...
Provided by University of Bremen
-
White Papers
Opportunistic Distance-Aware Routing in Multi-Sink Mobile Wireless Sensor Networks
July 27, 2009, 12:00am PDT
Wireless sensor networks are a research area of growing importance within the wireless networks research community. One of the major issues in this area is the search for efficient routing...
Provided by University of Bremen
-
White Papers
Proposed a Method for Increasing the Delivery Performance in Dynamic Supply Network
November 4, 2010, 12:00am PDT
Supply network management adopts a systematic and integrative approach to managing the operations and relationships of various parties in a supply network. The objective of the manufactures in...
Provided by University of Bremen
-
White Papers
Tracing Properties of UML and OCL Models With Maude
July 4, 2011, 12:00am PDT
The starting point of this paper is a system described in form of a UML class diagram where system states are characterized by OCL invariants and system transitions are defined by OCL pre- and...
Provided by University of Bremen
-
White Papers
Analysis of UDP, TCP and Voice Performance in IEEE 802.11b Multihop Networks
February 26, 2007, 12:00am PST
The authors investigate the performance of UDP, TCP and voice in a static wireless multihop network experimentally and by simulation. Measurements are carried out in a network consisting of eight...
Provided by University of Bremen
-
White Papers
Security in Open Model Software With Hardware Virtualization - The Railway Control System Perspective
August 10, 2010, 12:00am PDT
Using the openETCS initiative as a starting point, this paper describes how open software can be applied in combination with platform-specific, potentially closed source extensions, in the...
Provided by University of Bremen
-
White Papers
Generic XML-Based Framework for Metadata Portals
February 9, 2008, 12:00am PST
This paper presents a generic and flexible framework for building geoscientific metadata portals independent of content standards for metadata and protocols. Data can be harvested with commonly...
Provided by University of Bremen
-
White Papers
Context Routing in Wireless Sensor Networks
November 7, 2006, 12:00am PST
Nowadays wireless communication becomes more and more popular. A large variety tending from Wireless Personal Area Networks (WPAN) to Wireless Regional Area Networks (WRAN) and Satellite...
Provided by University of Bremen
-
White Papers
Modeling and Formally Checking Workflow Properties Using UML and OCL
March 20, 2010, 12:00am PDT
In this paper a new metamodel for workflows is described by using UML. The underlying UML class diagram is formally extended with OCL pre- and postconditions for operations and OCL invariants for...
Provided by University of Bremen
-
White Papers
Verifying UML/OCL Models Using Boolean Satisfiability
December 17, 2009, 12:00am PST
Nowadays, modeling languages like UML are essential in the design of complex software systems and also start to enter the domain of hardware and hardware/software codesign. Due to shortening...
Provided by University of Bremen
-
White Papers
Graph Transformations on the UML Metamodel
November 7, 2007, 12:00am PST
The Unified Modeling Language UML is a rich language so that it seems not feasible to give a single semantics for the complete language in one step. In order to define the semantics, this paper...
Provided by University of Bremen
Keep Up with TechRepublic
Upcoming Webcasts
Upcoming webcasts from leading IT vendors
-
2012-05-24 at 11:00 am PT | 2:00 pm ET
Live Webcast: The 2012 Guide to Better Business Benefits from Data Analytics
Sponsored by Tableau Software
-
2012-06-05 at 11:00 am PT | 2:00 pm ET
Live Webcast: Getting to Microsoft Office 365: The right migration for your business
Sponsored by Microsoft
-
2012-06-12 at 9:00 am PT | 12:00 pm ET
Live Webcast: WebSphere DataPower for Mobile Application Security
Sponsored by IBM
Submit a Paper
Get your content listed in our directory!
Our directory is the largest library of vendor-supplied technical content on the Web. It’s also the first place IT decision makers turn to when researching technology solutions. Our members are already finding your competitors’ papers here - shouldn’t they find yours, too? It's FREE so click here and submit your white paper, case study, data sheet, research report, or other document today!
