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Vienna University of Economics and Business
(188 results)-
White Papers
Towards a Security Management Reference Model for Vertical and Horizontal Collaborative Clouds
July 11, 2011, 12:00am PDT
The re-perimeterization and the erosion of trust boundaries already happening in organizations is amplified and accelerated by Cloud Computing. Security controls in Cloud Computing are, for the...
Provided by Vienna University of Technology
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White Papers
Firewire Blocker: A Software Defense Against Firewire-Based Physical Security Attacks on Windows Systems
August 13, 2009, 12:00am PDT
This paper presents a software solution to Firewire-based physical security attacks on Microsoft Windows operating systems. In this first proof-of-concept, the FirewireBlocker service is running...
Provided by Vienna University
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White Papers
Data Recovery From Distributed Personal Repositories
June 15, 2009, 12:00am PDT
This paper presents an approach to personal disaster recovery, e.g. after a hard-disk crash, based not on an explicitly ex-ante defined recovery plan with a rigid backup regime, but rather on...
Provided by Vienna University of Technology
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White Papers
Automatically Generating Models for Botnet Detection
June 30, 2009, 12:00am PDT
A botnet is a network of compromised hosts that is under the control of a single, malicious entity, often called the botmaster. This paper presents a system that aims to detect bots, independent...
Provided by Vienna University of Technology
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White Papers
Towards a Meta-Negotiation Architecture for SLA-Aware Grid Services
November 20, 2008, 12:00am PST
In novel market-oriented resource sharing models resource consumers pay for the resource usage and expect that non-functional requirements for the application execution, termed as Quality of...
Provided by Vienna University of Technology
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White Papers
Advanced QoS Methods for Grid Workflows Based on Meta-Negotiations and SLA-Mappings
November 5, 2008, 12:00am PST
In novel market-oriented resource sharing models, resource consumers pay for the resource usage and expect that non-functional requirements for the application execution, termed as Quality of...
Provided by Vienna University of Technology
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White Papers
Measurement Based Throughput Evaluation of Residual Frequency Offset Compensation in WiMAX
September 30, 2009, 12:00am PDT
WiMAX utilizes a physical-layer based on OFDM that is very sensitive to carrier frequency offset. Even though most of this offset can be compensated using the initial training sequence, there...
Provided by Vienna University of Technology
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White Papers
Throughput and Capacity of MIMO WiMAX
November 4, 2009, 12:00am PST
The work in this paper presents physical layer throughput measurement results of a WiMAX link implemented according to IEEE 802.16-2004. The measurements were carried out in an alpine and an urban...
Provided by Vienna University of Technology
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White Papers
Efficient Detection of Split Personalities in Malware
December 19, 2009, 12:00am PST
Malware is the root cause of many security threats on the Internet. To cope with the thousands of new malware samples that are discovered every day, security companies and analysts rely on...
Provided by Vienna University of Technology
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White Papers
Scalable, Behavior-Based Malware Clustering
December 13, 2008, 12:00am PST
Anti-malware companies receive thousands of malware samples every day. To process this large quantity, a number of automated analysis tools were developed. These tools execute a malicious program...
Provided by Vienna University of Technology
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White Papers
It's Time to Bring Word Processing Out of the Dark Ages: A Position Paper
November 24, 2007, 12:00am PST
This paper presents a view that word processing (and document authoring in general) today is very inefficient, and that this problem is mainly due to inadequately designed software whose approach...
Provided by Vienna University of Technology
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White Papers
Architecture for Object-Oriented Programming Languages
September 28, 2007, 12:00am PDT
Object Oriented Programming (OOP) is a program paradigm that uses objects-data structures consisting of data files and methods together with their interactions to design applications and computer...
Provided by Vienna University of Technology
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White Papers
Catching the Ouroboros: On Debugging Non-Ground Answer-Set Programs
March 20, 2010, 12:00am PDT
An important issue towards a broader acceptance of Answer-Set Programming (ASP) is the deployment of tools which support the programmer during the coding phase. In particular, methods for...
Provided by Vienna University of Technology
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White Papers
Abstract and Concrete Syntax Migration of Instance Models
July 26, 2010, 12:00am PDT
This paper presents a solution for the TTC 2010 model migration case study. Firstly, the paper presents a modular approach to migrate the instance models' abstract syntax. Secondly, the problem of...
Provided by Vienna University of Technology
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White Papers
An Integrated View on Monitoring and Compensation for Dynamic Optical Networks: From Management to Physical Layer
December 10, 2008, 12:00am PST
A vertical perspective, ranging from management and routing to physical layer options, concerning dynamic network Monitoring and Compensation of impairments (M&C), is given. Feasibility,...
Provided by Vienna University of Technology
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White Papers
End-to-End Versioning Support For Web Services
April 15, 2008, 12:00am PDT
Software services are, just like any other software system, subject to permanent change. The authors argue that these changes should generally be transparent to service consumers. However,...
Provided by Vienna University of Technology
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White Papers
Applied Information Security for M-Commerce and Digital Television Environments
January 1, 2010, 12:00am PST
With the emergence of convergent information devices capable of delivering multimedia content and providing a network communication independent of location, new challenges regarding the creation...
Provided by Vienna University of Technology
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White Papers
Compliant Cloud Computing (C3): Architecture and Language Support for User-Driven Compliance Management in Clouds
May 6, 2010, 12:00am PDT
Cloud computing represents a promising computing paradigm, where computational power is provided similar to utilities like water, electricity or gas. While most of the Cloud providers can...
Provided by Vienna University of Technology
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White Papers
UDP for Real-Time Linux
December 24, 2007, 12:00am PST
This work describes the integration of the hard real-time UDP/IP stack rtludp-0.1.1 into the Realtime Ethernet Device Driver (REDD) of the free real-time Linux distribution RTLinux/GPL. The...
Provided by Vienna University of Technology
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White Papers
A Java Processor Architecture for Embedded Real-Time Systems
June 12, 2007, 12:00am PDT
Architectural advancements in modern processor designs increase average performance with features such as pipelines, caches, branch prediction, and out-of-order execution. However, these features...
Provided by Vienna University of Technology
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White Papers
Interrupt Handlers in Java
February 15, 2008, 12:00am PST
An important part of implementing device drivers is to control the interrupt facilities of the hardware platform and to program interrupt handlers. Current methods for handling interrupts in Java...
Provided by Vienna University of Technology
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White Papers
Integrated Pricing And Inventory Control With Reference Price Effects
July 25, 2007, 12:00am PDT
In this paper the authors study a joint pricing and inventory control model with backlogging for single items under reference price effects. The reference price effect models the empirically well...
Provided by Vienna University of Economics and Business
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White Papers
Service-Oriented Architecture Design Aspects of OPC UA for Industrial Applications
September 20, 2009, 12:00am PDT
OPC Unified Architecture is the most recent OPC specification from the OPC Foundation and differs significantly from its predecessors. The OPC Foundation's main goals with this development was to...
Provided by Vienna University of Technology
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White Papers
The Great Recession Versus The Great Depression: Stylized Facts On Siblings That Were Given Different Foster Parents
February 15, 2010, 12:00am PST
This paper compares the depth of the Recent Crisis and the Great Depression. The authors use a new data set to compare the drop in activity in the industrialized countries for seven activity...
Provided by Vienna University of Economics and Business
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White Papers
Establishing Context of Digital Objects' Creation, Content and Usage
June 19, 2009, 12:00am PDT
The context of objects is essential for the interpretation of information entities, for establishing their authenticity as well as ensuring appropriate use. Thus, documenting the context of...
Provided by Vienna University
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White Papers
Designing Flexible GUI to Increase the Acceptance Rate of Product Data Management Systems in Industry
February 1, 2011, 12:00am PST
Product Data Management (PDM) desktop and web based systems maintain the organizational technical and managerial data to increase the quality of products by improving the processes of development,...
Provided by Vienna University of Technology
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White Papers
Integration of Flexible Web Based GUI in I-SOAS
September 6, 2010, 12:00am PDT
It is necessary to improve the concepts of the present web based graphical user interface for the development of more flexible and intelligent interface to provide ease and increase the level of...
Provided by Vienna University of Technology
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White Papers
Service-Oriented Architecture (SOA) Vs. Component Based Architecture
February 13, 2006, 12:00am PST
SOA is a buzzword and topic for many discussions in nearly every professional journal and conference. Opinions differ from "Some technical rubbish" to "The technology of the future". The problem...
Provided by Vienna University of Technology
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White Papers
Information Retrieval in the Semantic-LIFE Personal Digital Memory Framework
June 9, 2009, 12:00am PDT
Ever increasing capacities of contemporary storage devices inspire the vision to accumulate (personal) information without the need of deleting old data over a long time-span. Hence the target of...
Provided by Vienna University
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White Papers
Trusted Interaction Patterns in Large-scale Enterprise Service Networks
October 23, 2009, 12:00am PDT
The evolution towards cross-organizational collaboration and interaction patterns has led to the emergence of scalable, Web services-based composition infrastructures. The success of...
Provided by Vienna University of Technology
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White Papers
Service-Centric Inference and Utilization of Confidence on Context
October 22, 2010, 12:00am PDT
The inadequate quality of context forces the context consumers in pervasive environments to reason about the quality and relevance of context to be confident of its worth to perform their...
Provided by Vienna University of Technology
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White Papers
On Evaluating and Publishing Data Concerns for Data as a Service
September 28, 2010, 12:00am PDT
The proliferation of Data as a Service (DaaS) available on the Internet and offered by cloud service providers indicates an increasing trend in providing data under Web services in e-science and...
Provided by Vienna University of Technology
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White Papers
End-To-End Support for QoS-Aware Service Selection, Invocation and Mediation in VRESCo
May 26, 2009, 12:00am PDT
Service-oriented Computing has recently received a lot of attention from both academia and industry. However, current service oriented solutions are often not as dynamic and adaptable as intended...
Provided by Vienna University of Technology
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White Papers
Cost-Based Optimization of Service Compositions
February 15, 2011, 12:00am PST
For providers of composite services preventing cases of SLA violations is crucial. Previous work has established runtime adaptation of compositions as a promising tool to achieve SLA conformance....
Provided by Vienna University of Technology
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White Papers
Context Coupling Techniques for Context-Aware Web Service Systems - An Overview
November 28, 2009, 12:00am PST
Distributed services in a context-aware Web service system or in a service composition need to couple context information from different sources in order to be able to interpret context...
Provided by Vienna University of Technology
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White Papers
Model-Aware Monitoring of SOAs for Compliance
October 6, 2010, 12:00am PDT
Business processes today are supported by process-driven service oriented architectures. Due to the increasing importance of compliance of an organization with regulatory requirements and internal...
Provided by Vienna University of Technology
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White Papers
VRESCo - Vienna Runtime Environment for Service-Oriented Computing
October 6, 2010, 12:00am PDT
Throughout the last years, the Service-Oriented Architecture (SOA) paradigm has been promoted as a means to create loosely coupled distributed applications. In theory, SOAs make use of a service...
Provided by Vienna University of Technology
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White Papers
Interaction-Driven Self-Adaptation of Service Ensembles
February 9, 2010, 12:00am PST
The emergence of large-scale online collaboration requires current information systems to be apprehended as service ensembles comprising human and software service entities. The software services...
Provided by Vienna University of Technology
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White Papers
Monitoring and Analyzing Service-Based Internet Systems Through a Model-Aware Service Environment
April 15, 2010, 12:00am PDT
As service-based Internet systems get increasingly complex they become harder to manage at design time as well as at runtime. Nowadays, many systems are described in terms of precisely specified...
Provided by Vienna University of Technology
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White Papers
Context-Aware Adaptive Service Mashups
September 24, 2009, 12:00am PDT
Mashup tools are becoming increasingly important enabling users to compose services and processes on the Web. Most existing tools focus on Web-based interfaces, usability, and visual languages for...
Provided by Vienna University of Technology
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Whitepapers
Securing a Space-Based Service Architecture With Coordination-Driven Access Control
March 21, 2013, 12:00am PDT
In distributed applications, multiple autonomous processes need to collaborate in an efficient way. Space-based middleware enables data-driven coordination for these processes via shared tuple...
Provided by Vienna University of Economics and Business
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Whitepapers
Vanity, Cracks and Malware
November 6, 2012, 12:00am PST
Today, a large amount of software products include mechanisms to counter software piracy. However, most protection mechanisms can be easily circumvented by applying soft-ware patches (cracks) or...
Provided by Vienna University of Economics and Business
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Whitepapers
Lines of Malicious Code: Insights Into the Malicious Software Industry
January 7, 2013, 12:00am PST
Malicious software installed on infected computers is a fundamental component of online crime. Malware development thus plays an essential role in the underground economy of cyber-crime. Malware...
Provided by Vienna University of Economics and Business
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Whitepapers
Vector Perturbation Precoding for Receivers With Limited Dynamic Range
January 8, 2009, 12:00am PST
In this paper, the authors consider the Vector Perturbation (VP) pre-coding scheme for the multiuser MISO broadcast channel proposed by Hochwald et al. under the practical assumption that the...
Provided by Vienna University of Economics and Business
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Whitepapers
Event-Based Monitoring of Open Source Software Projects
October 23, 2007, 12:00am PDT
Project management traditionally has a strong focus on human reporting that fits well a tightly coupled form of organization to ensure the quality of project reporting. For loosely coupled forms...
Provided by Vienna University of Economics and Business
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Whitepapers
Boosting Sphere Decoding Speed Through Graphic Processing Units
April 1, 2010, 12:00am PDT
Graphic Processing Units (GPUs) have evolved to provide a massive computational power. In contrast to Central Processing Units, GPUs are so-called many-core processors with hundreds of cores...
Provided by Vienna University of Economics and Business
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Whitepapers
End-User Development in a Graphical User Interface Setting
February 12, 2009, 12:00am PST
In many areas, software applications must be highly configurable - using a pre-defined set of options or preferences is not flexible enough. One way to improve an application's flexibility is to...
Provided by Vienna University of Economics and Business
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Whitepapers
Optimal Pilot Symbol Power Allocation in Multi-Cell Scenarios of LTE
November 9, 2011, 12:00am PST
Current systems for cellular wireless communication are designed for coherent detection. Therefore, the channel estimator is a crucial part of a receiver. UMTS Long Term Evolution (LTE) provides a...
Provided by Vienna University of Economics and Business
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Whitepapers
Validation of Minimum-Energy Band-Limited Prediction Using Vehicular Channel Measurements
July 28, 2009, 12:00am PDT
The authors demonstrate that Minimum-Energy (ME) band-limited prediction shows the same robust performance for vehicular channel measurements as well as for the numeric Clarke channel model. By...
Provided by Vienna University of Economics and Business
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Whitepapers
Carrier Frequency Synchronization in the Downlink of 3GPP LTE
September 8, 2010, 12:00am PDT
In this paper, the authors investigate carrier frequency synchronization in the downlink of 3GPP Long Term Evolution (LTE). A complete carrier frequency offset estimation and compensation scheme...
Provided by Vienna University of Economics and Business
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Whitepapers
MIMO-BICM with Imperfect Channel State Information: Exit Chart Analysis and Ldpc Code Optimization
November 25, 2008, 12:00am PST
The authors investigate MIMO systems employing bit-interleaved coded modulation and iterative decoding with imperfect channel estimates. An optimum soft demodulator for this scenario with i.i.d....
Provided by Vienna University of Economics and Business
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Whitepapers
Interference Alignment in the Partially Connected K-User MIMO Interference Channel
June 1, 2011, 12:00am PDT
The authors consider interference alignment in the partially connected K-user MIMO Interference Channel (IC). Conversely to the fully-connected case, they show that interference alignment can be...
Provided by Vienna University of Economics and Business
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Whitepapers
Simulating the Long Term Evolution Physical Layer
August 28, 2009, 12:00am PDT
Research and development of signal processing algorithms for UMTS Long Term Evolution (LTE) requires a realistic, flexible, and standard-compliant simulation environment. To facilitate comparisons...
Provided by Vienna University of Economics and Business
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Whitepapers
Measurement Based Evaluation of Low Complexity Receivers for D-TXAA HSDPA
August 1, 2008, 12:00am PDT
In 2007, the 3GPP agreed to standardize D-TxAA (Dual Stream Transmit Antenna Array) as the MIMO extension for HSDPA (High Speed Downlink Packet Access). In this paper, the authors examine receiver...
Provided by Vienna University of Economics and Business
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Whitepapers
MIMO HSDPA Throughput Measurement Results in an Urban Scenario
September 1, 2009, 12:00am PDT
In this paper, the authors report on results of MIMO High Speed Downlink Packet Access (HSDPA) throughput measurements. These measurements were carried out in an urban scenario. Besides the...
Provided by Vienna University of Economics and Business
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Whitepapers
Testbedding MIMO HSDPA and WiMAX
September 1, 2009, 12:00am PDT
Modern wireless communication systems employ MIMO and feedback - two properties that make it especially difficult to measure the performance of such systems with reasonable effort in actual...
Provided by Vienna University of Economics and Business
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Whitepapers
Architecture of a Modular IEEE 802.15.4a Ultra-Wideband Transmitter
August 6, 2008, 12:00am PDT
As part of a multi-channel, multi-band evaluation platform for future wireless sensor network applications, an IEEE 802.15.4a standard conform transmitter is investigated. The paper gives an...
Provided by Vienna University of Economics and Business
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Whitepapers
Conflict Visualization for Evolving UML Models
September 28, 2012, 12:00am PDT
The urgent demand for supporting teamwork and continuous evolution of software models triggered intensive research on optimistic version control systems for models. State-of-the-art model...
Provided by Vienna University of Economics and Business
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Whitepapers
The Vienna LTE Simulators - Enabling Reproducibility in Wireless Communications Research
July 25, 2011, 12:00am PDT
In this paper, the authors introduce MATLAB-based link and system level simulation environments for UMTS Long-Term Evolution (LTE). The source codes of both simulators are available under an...
Provided by Vienna University of Technology
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Whitepapers
Adaptive Mesh Approach for Predicting Algorithm Behavior with Application to Visibility Culling in Computer Graphics
March 12, 2009, 12:00am PDT
The authors propose a concise approximate description, and a method for efficiently obtaining this description, via adaptive random sampling of the performance (running time, memory consumption,...
Provided by Vienna University of Economics and Business
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Whitepapers
PDM Based I-SOAS Data Warehouse Design
January 25, 2009, 12:00am PST
This paper briefly describes the industrial contributions of Product Data Management in any organization's technical and managerial data management. Then focusing on some current major PDM based...
Provided by Vienna University of Economics and Business
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Whitepapers
Energy Efficient Service Delivery in Clouds in Compliance with the Kyoto Protocol
April 30, 2012, 12:00am PDT
Cloud computing is revolutionizing the ICT landscape by providing scalable and efficient computing resources on demand. The ICT industry - especially data centers, are responsible for considerable...
Provided by Vienna University of Economics and Business
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Whitepapers
Users in Cells: a Data Traffic Analysis
March 12, 2012, 12:00am PDT
The authors present a large-scale cell based measurement analysis of the user behavior in a live operational HSDPA network. The motivations are: first, to understand the statistical properties of...
Provided by Vienna University of Economics and Business
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Whitepapers
Adaptive Channel Direction Quantization Based on Spherical Prediction
May 24, 2012, 12:00am PDT
In this paper, the authors present algorithms for the quantization of a correlated unit norm random vector process. Such algorithms are important, e.g., for channel vector quantization in wireless...
Provided by Vienna University of Economics and Business
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Whitepapers
Joint Network-Channel Coding for the Asymmetric Multiple-Access Relay Channel
May 24, 2012, 12:00am PDT
In this paper, the authors consider the time-division Multiple Access Relay Channel (MARC). They propose a low-complexity compress-and-forward-based transmission scheme that consists of a scalar...
Provided by Vienna University of Economics and Business
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Whitepapers
Accurate SINR Estimation Model for System Level Simulation of LTE Networks
May 24, 2012, 12:00am PDT
This paper presents an SINR prediction model for LTE systems with the aim of improving the accuracy of physical layer models used for higher-than-physical-level simulations. This physical layer...
Provided by Vienna University of Economics and Business
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Whitepapers
CASViD: Application Level Monitoring for SLA Violation Detection in Clouds
April 20, 2012, 12:00am PDT
Cloud resources and services are offered based on Service Level Agreements (SLAs) that state usage terms and penalties in case of violations. Although, there is a large body of work in the area of...
Provided by Vienna University of Technology
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White Papers
Position Paper: m2n-A Tool for Translating Models to Natural Language Descriptions
June 10, 2011, 12:00am PDT
To describe the structure of a system, the UML Class Diagram yields the means-of-choice. Therefore, the Class Diagram provides concepts like class, attribute, operation, association,...
Provided by Vienna University of Technology
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White Papers
Domain-Specific Languages in a Finite Domain Constraint Programming System
August 30, 2011, 12:00am PDT
In this paper, the authors present Domain-Specific Languages (DSLs) that they devised for their use in the implementation of a finite domain constraint programming system, available as library...
Provided by Vienna University of Technology
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White Papers
A Practical Attack to De-Anonymize Social Network Users
May 5, 2010, 12:00am PDT
Social networking sites such as Facebook, LinkedIn, and Xing have been reporting exponential growth rates and have millions of registered users. In this paper, the authors introduce a novel...
Provided by Vienna University of Technology
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White Papers
Extending Mondrian Memory Protection
November 9, 2010, 12:00am PST
Most modern operating systems implement some sort of memory protection scheme for user processes. These schemes make it is possible to set access permissions that determine whether a region of...
Provided by Vienna University of Technology
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White Papers
WSN Implementation of the Average Consensus Algorithm
April 29, 2011, 12:00am PDT
This paper is motivated by the lack of distributed algorithm implementations on Wireless Sensor Networks (WSN) in hardware. The authors deal exemplary with the implementation of the well-known...
Provided by Vienna University of Technology
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White Papers
A Comparison of Rule Inheritance in Model-to-Model Transformation Languages
February 11, 2011, 12:00am PST
Although model transformations presumably play a major role in Model-Driven Engineering, reuse mechanisms such as inheritance have received little attention so far. In this paper, the authors...
Provided by Vienna University of Technology
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White Papers
Information Security Automation: How Far Can We Go?
August 23, 2011, 12:00am PDT
Information security management is a very complex task which involves the implementation and monitoring of more than 130 security controls. To achieve greater efficiency in this process it is...
Provided by Vienna University of Technology
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White Papers
RTTM: Real-Time Transactional Memory
February 26, 2010, 12:00am PST
Hardware transactional memory is a promising synchronization technology for chip-multiprocessors. It simplifies programming of concurrent applications and allows for higher concurrency than lock...
Provided by Vienna University of Technology
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White Papers
A Semi-Automatic Approach for Bridging DSLs With UML
October 1, 2007, 12:00am PDT
The definition of modeling languages is a key-prerequisite for Model-Driven Engineering (MDE). In this respect, Domain-Specific Languages (DSL) defined in terms of metamodels and UML profiles are...
Provided by Vienna University of Technology
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White Papers
Automating the Detection of Complex Semantic Conflicts Between Software Requirements
May 10, 2011, 12:00am PDT
Keeping requirements consistent already at early project stages is a main success factor for software development projects. However, manual requirements conflict analysis takes significant effort...
Provided by Vienna University of Technology
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White Papers
On the Suitability of Modeling Approaches for Engineering Distributed Control Systems
June 10, 2009, 12:00am PDT
Modern complex and flexible manufacturing systems require new types of control system architectures and design methodologies. An essential new applied architectural approach is the distributed...
Provided by Vienna University of Technology
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White Papers
Using Explicit and Machine-Understandable Engineering Knowledge for Defect Detection in Automation Systems Engineering
August 3, 2011, 12:00am PDT
Today the costs of a failure in operation of huge industrial complexes are very high. Traditional approaches for defect detection in automation systems engineering in principle work, but generally...
Provided by Vienna University of Technology
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White Papers
SemTrace: Semantic Requirements Tracing Using Explicit Requirement Knowledge
July 10, 2011, 12:00am PDT
In the Software Engineering (SE) domain the EU challenge on semantic systems and services motivates better support of knowledge creation as well as better access of SE stakeholders to the...
Provided by Vienna University of Technology
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