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- Throughput and Capacity of MIMO WiMAX
- 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 scenario using the Vienna MIMO Testbed. The paper compares the measured throughput to three different theoretical bounds: the channel...
- Tags: Physical Layer, Throughput, Vienna University, MIMO, WiMAX, Wireless And Mobility
- White papers 2009-11-04
- Firewire Blocker: A Software Defense Against Firewire-Based Physical Security Attacks on Windows Systems
- 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 with SYSTEM privileges in order to be able to enable/disable hardware. While users can normally not interface with service, risk for privilege escalation remains. For...
- Tags: Software, Physical Security, Vienna University, Microsoft Windows, Attack, FireWire, Consumer Electronics, Personal Technology
- White papers 2009-08-13
- Data Recovery From Distributed Personal Repositories
- 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 naturally accumulated and distributed sources of personal data, such as e-mails and their attachments. The paper aims to restore...
- Tags: Data Recovery, Vienna University, Backups, Disaster Recovery, Productivity, Data Management
- White papers 2009-06-15
- Towards a Meta-Negotiation Architecture for SLA-Aware Grid Services
- 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 Service QoS, are satisfied. QoS is negotiated between two parties following the specific negotiation protocols and is recorded using Service Level Agreements SLAs standard....
- Tags: SLA, Vienna University, Negotiation, Service Level Management, Free Trade, It Operations, It service Management, Finance
- White papers 2008-11-20
- Advanced QoS Methods for Grid Workflows Based on Meta-Negotiations and SLA-Mappings
- 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 Service QoS, are satisfied. QoS is negotiated between two parties following the specific negotiation protocols and is recorded using Service Level Agreements SLAs. However,...
- Tags: SLA, QoS, Vienna University, Workflow, Negotiation, Service Level Management, Free Trade, It Operations, It service Management, Finance
- White papers 2008-11-05
- A Modular UHF Reader Frontend for a Flexible RFID Testbed
- Currently RFID Radio Frequency Identification technology is pushing to the market mainly forced by industry. Passive tags in the UHF Ultra High Frequency region are of particular interest e.g. for supply chains, showing a tendency to become state of the art. Passive tags obtain their energy from the readers during...
- Tags: Vienna University, Tag, RFID, Wireless And Mobility, Security, Biometrics
- White papers 2008-06-16
- Current and Future Technologies for Collaborative Working Environments
- This paper reports the final, detailed result of the study on current and future technologies for Collaborative Working Environments CWEs. The goal of this paper is to analyze current CWEs and whether they and their future trends are suitable for large-scale multinational organizations. To this end, they have analyzed the...
- Tags: Environment, Vienna University, Collaborative Working Environment
- White papers 2008-05-21
- Closing the Dependability Gap: Converging Software Engineering With Middleware
- The inertness of today's software systems turns innovative applications into an obstacle rather than an enabler and results in dependability degradation during the systems' lifetime. Even more so, heterogeneity, scale, and dynamics open up what Laprie called the dependability gap. This paper identifies the need to converge methods from software...
- Tags: Software, Software Engineering, Middleware, Vienna University, Dependability Gap, Tools & Techniques, Development Tools, Management, Software Development, Software/Web Development
- White papers 2008-04-07
- A UML Profile for Modeling Data Warehouse Usage
- Data Warehouse DWH systems represent a single source of information for analyzing the status, the development and the results of an organization. The DWH systems provide many different services to different kinds of users. People involved in designing and managing DWH systems need to see the big picture of how...
- Tags: Data Warehouse, Vienna University, Modeling, DWH, Research & Development, UML, Business Intelligence, Programming Languages, Business Operations, Ooa/Ood/Oop, Software Development, Software/Web Development, Enterprise Software, Software, Data Management
- White papers 2007-05-11
- The Web Services-BusinessActivity - Initiator (WS-BA - I) Protocol: An Extension to the Web Services-BusinessActivity Specification
- The Web Services Transaction protocol family includes the WS-AtomicTransaction and the WSBusinessActivity specifications in order to carry out distributed transactions in a Web Services WS environment. The WS-AtomicTransaction specification defines all necessary interfaces to carry out transactional work. In contrary, the WS-BusinessActivity specification for long-running transactions intentionally left the interface...
- Tags: Web, Vienna University, Specification, Web Services Transaction Protocol Family, WS-AtomicTransaction Specification, Channel Management, Marketing
- White papers 2007-05-03
- Mrera (Minimum Range Error Algorithm): RFID - GNSS Integration for Vehicle Navigation in Urban Canyons
- A new GPS positioning algorithm for vehicle tracking namely the "Minimum Range Error Algorithm" MRERA was proposed by E. Mok and L. Lam, to track vehicles in dense high-rise environments without the use of dead reckoning, and it can also be used for general geolocation positioning applications. With this algorithm,...
- Tags: Algorithm, Vienna University, Positioning, RFID, Integration, Branding, Engineering, GPS, Marketing, Consumer Electronics, Personal Technology
- White papers 2007-04-11
- The Lixto Systems Applications in Business Intelligence and Semantic Web
- This paper shows how technologies for Web data extraction, syndication and integration allow for new applications and services in the Business Intelligence and the Semantic Web domain. First, they demonstrate how knowledge about market developments and competitor activities on the market can be extracted dynamically and automatically from semi-structured information...
- Tags: Vienna University, Semantic Web, Pricing, Business Intelligence, Tools & Techniques, Internet, Marketing, Enterprise Software, Software, Data Management, Management
- White papers 2007-03-16
- Exploring Multiple Execution Paths for Malware Analysis
- Malicious code or malware is defined as software that fulfills the deliberately harmful intent of an attacker. Malware analysis is the process of determining the behavior and purpose of a given malware sample (such as a virus, worm, or Trojan horse). This paper proposes a system that allows them to...
- Tags: Vienna University, Malware, Malware Analysis, Spyware, Adware & Malware, Cyberthreats, Viruses And Worms, Security
- White papers 2007-03-01
- Wireless Internet Applications
- Web services provide the ability to design new exciting internet applications and innovative mobile applications. Web services are a family of XML-based standards designed for the communication of loosely coupled, dynamically bound applications. Web services can be seen as the evolution of the Web where not only humans interact with...
- Tags: Web, Internet, Vienna University, Wireless Internet, Web Service, Wireless, Cloud Computing, Web Services, Channel Management, Enterprise Software, Software, Marketing
- White papers 2006-12-11
- Low-Complexity Time-Domain ICI Equalization for OFDM Communications Over Rapidly Varying Channels
- This paper considers wireless OFDM communications over rapidly varying channels as occurring e.g. in high-mobility scenarios. Here, InterCarrier Interference ICI is the major source of impairment that limits the transmission quality. This paper proposes novel equalizers to combat ICI and enable reliable communications even at high Doppler frequencies. In contrast...
- Tags: Channel, Vienna University, OFDM, Wireless
- White papers 2006-11-28
- Service-Oriented Architecture (SOA) Vs. Component Based Architecture
- 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 about these different opinions partly depend on another problem: What precisely is SOA? Whatever it is and will be, it...
- Tags: Vienna University, SOA, Service-Oriented Architecture (SOA), Web Services, Middleware, Enterprise Software, Software
- White papers 2006-02-13
- Wrapping Legacy Software for Reuse in a SOA
- Legacy programs, i.e. programs which have been developed with an outdated technology make-up for the vast majority of programs in many user application environments. It is these programs which actually run the information systems of the business world. Moving to a new technology such as service oriented architecture is impossible...
- Tags: Vienna University, SOA, Legacy, Service-Oriented Architecture (SOA), Web Services, Asset Management, Middleware, Enterprise Software, Software, Financial Services, Operational Planning, Finance, Business Operations
- White papers 2005-12-06
- A Service Oriented Architecture Framework for Collaborative Services
- The demand for flexible, efficient and user-friendly collaborative services is becoming more and more urgent as the competition in the current market-oriented arena is getting more intense and fiercer. Enterprises have to be more dynamic in terms of collaboration with partners and even competitors. The Service Oriented Architecture is a...
- Tags: Vienna University, Distributed Computing, SOA, Service-Oriented Architecture (SOA), Web Services, Cloud Computing, Middleware, Enterprise Software, Network Technology, Software, Networking
- White papers 2005-04-05
- Web Engineering - Old Wine in New Bottles?
- Modern Web applications are full-fledged, complex software systems. Therefore, the development of Web applications requires a methodologically sound engineering approach called Web Engineering. It is not clear, however, to which extent existing solutions from relevant areas, most notably software engineering can be reused as such for the development of Web...
- Tags: Software, Web, Web Application, Vienna University, Wine, Modern Web Application, Cloud Computing, Channel Management, Marketing
- White papers 2004-09-03
- Soft Real-Time Linux Overview
- As real-time capabilities are becoming relevant in main-stream desk-top Linux more and more, and new variants and ideas are popping up all over the Open-Source world, a notoriously incomplete, overview of the existing variants of soft-real time Linux is given in the paper. Many of the variants are for special...
- Tags: Vienna University, Variant, Linux, UNIX, Open Source, Operating Systems, Software
- White papers
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