Austrian Academy of Sciences

Displaying 1-12 of 12 results

  • White Papers // Mar 2011

    Time Is Money: Could Deferred Graduate Retirement Finance Higher Education?

    Higher education is never free - the question is: who should pay for it? Current policy debates in Europe are increasingly focusing on raising the share of private funding. To date, policy discussions have centred on a relatively small number of alternatives, namely full public funding, tuition fees, either up-front...

    Provided By Austrian Academy of Sciences

  • White Papers // Oct 2010

    Demographic Change In Models Of Endogenous Economic Growth. A Survey

    The purpose of this paper is to identify the role of population size, population growth and population ageing in models of endogenous economic growth. While in exogenous growth models demographic variables are linked to economic prosperity mainly via the population size, the structure of the workforce, and the capital intensity...

    Provided By Austrian Academy of Sciences

  • White Papers // Aug 2010

    Distributed Clock Synchronization in Discrete Event Simulators for Wireless Factory Automation

    Between the wired and the wireless world a synchronization gap in terms of accuracy obviously exists due to the different possibilities of the technologies. This paper investigates means to access WLAN functionality in order to gain system-wide synchronization between access points and clients in order to establish a common notion...

    Provided By Austrian Academy of Sciences

  • White Papers // Aug 2010

    Software Support for Clock Synchronization Over IEEE 802.11 Wireless LAN With Open Source Drivers

    Between the wired and the wireless world a synchronization gap in terms of accuracy obviously exists due to the different possibilities of the technologies. This paper investigates means to access WLAN functionality in order to gain system wide synchronization between access points and clients in order to establish a common...

    Provided By Austrian Academy of Sciences

  • White Papers // Aug 2010

    Clock Synchronization in Wireless LANs Without Hardware Support

    One typical approach to provide industrial automation networks with real-time guarantees is to plan a communication timeframe, which relies on synchronized clocks at all communication participants. This paper investigates how to reach such clock synchronization accuracy in a wireless LAN, where commercially available chipsets dictate the implementation possibilities. Furthermore, this...

    Provided By Austrian Academy of Sciences

  • White Papers // Jul 2010

    The Impact Of The Economic Crisis On Labour And Education In Europe

    In summer 2007, the US subprime crisis emerged and economic growth in industrialised countries started to slow down. The situation deteriorated after the default of Lehman Brothers in September 2008 and despite massive government interventions, the United States and most European countries slid into recession. The authors investigate the influence...

    Provided By Austrian Academy of Sciences

  • White Papers // Jul 2010

    Clock Synchronization Simulation for Wireless Sensor Networks

    A lot of research is done in the field of wireless sensor networks, particularly in the field of ad-hoc networks. Large-scale real-time wireless networks for factory automation are hardly covered by existing research. Such networks usually have thousands of nodes, which makes simulation a necessity for system validation. Discrete Event...

    Provided By Austrian Academy of Sciences

  • White Papers // Jan 2010

    Localisation of Wireless LAN Nodes Using Accurate TDOA Measurements

    Time based localisation methods like GPS are widely used for outdoor navigation, whereas indoor navigation is typically performed only on a cell-basis or based on the Received Signal Strength Indicator. Since RSSI is not able to fulfill all current requirements, Time of Arrival and Time Difference of Arrival based approaches...

    Provided By Austrian Academy of Sciences

  • White Papers // Jul 2009

    Agents on RFID Tags - A Chance to Increase Flexibility in Automation

    RFIDs (Radio Frequency Identification) are used for identification of products in manifold areas including industrial automation. Their ability to identify products tremendously supports keeping control over the products in a plant and to set the basis for decisions to optimize the production process. Agent systems, on the other hand, offer...

    Provided By Austrian Academy of Sciences

  • White Papers // Jul 2009

    Localisation in Wireless Sensor Networks

    The traditional task of a sensor network is data collection and aggregation for further processing. In the case of mobile networks this is usually done via wireless technologies. However, with the establishment of mobility another problem occurs: The question of the actual location of the measured data. This paper proposes...

    Provided By Austrian Academy of Sciences

  • White Papers // Jul 2009

    Security Concepts for Flexible Wireless Automation in Real-Time Environments

    Modern industrial automation systems require flexible, real-time communication networks. To increase flexibility, wireless technologies have become an area of interest in particular for applications involving mobile devices, transmission of data onto moving parts of machinery, or highly distributed devices in environments where cabling is difficult, expensive, or even impossible. However,...

    Provided By Austrian Academy of Sciences

  • White Papers // Jul 2009

    A Novel, High-Precision Timestamping Platform for Wireless Networks

    The introduction of wireless networks in the factory floor offers many advantages. Besides a new flexibility for automation, also features like the localisation of wireless devices ease the use of this technology. However, for the application on the factory floor real-time guarantees have to be given, which can be ensured...

    Provided By Austrian Academy of Sciences

  • White Papers // Jul 2009

    Agents on RFID Tags - A Chance to Increase Flexibility in Automation

    RFIDs (Radio Frequency Identification) are used for identification of products in manifold areas including industrial automation. Their ability to identify products tremendously supports keeping control over the products in a plant and to set the basis for decisions to optimize the production process. Agent systems, on the other hand, offer...

    Provided By Austrian Academy of Sciences

  • White Papers // Oct 2010

    Demographic Change In Models Of Endogenous Economic Growth. A Survey

    The purpose of this paper is to identify the role of population size, population growth and population ageing in models of endogenous economic growth. While in exogenous growth models demographic variables are linked to economic prosperity mainly via the population size, the structure of the workforce, and the capital intensity...

    Provided By Austrian Academy of Sciences

  • White Papers // Jul 2010

    The Impact Of The Economic Crisis On Labour And Education In Europe

    In summer 2007, the US subprime crisis emerged and economic growth in industrialised countries started to slow down. The situation deteriorated after the default of Lehman Brothers in September 2008 and despite massive government interventions, the United States and most European countries slid into recession. The authors investigate the influence...

    Provided By Austrian Academy of Sciences

  • White Papers // Mar 2011

    Time Is Money: Could Deferred Graduate Retirement Finance Higher Education?

    Higher education is never free - the question is: who should pay for it? Current policy debates in Europe are increasingly focusing on raising the share of private funding. To date, policy discussions have centred on a relatively small number of alternatives, namely full public funding, tuition fees, either up-front...

    Provided By Austrian Academy of Sciences

  • White Papers // Jul 2010

    Clock Synchronization Simulation for Wireless Sensor Networks

    A lot of research is done in the field of wireless sensor networks, particularly in the field of ad-hoc networks. Large-scale real-time wireless networks for factory automation are hardly covered by existing research. Such networks usually have thousands of nodes, which makes simulation a necessity for system validation. Discrete Event...

    Provided By Austrian Academy of Sciences

  • White Papers // Aug 2010

    Distributed Clock Synchronization in Discrete Event Simulators for Wireless Factory Automation

    Between the wired and the wireless world a synchronization gap in terms of accuracy obviously exists due to the different possibilities of the technologies. This paper investigates means to access WLAN functionality in order to gain system-wide synchronization between access points and clients in order to establish a common notion...

    Provided By Austrian Academy of Sciences

  • White Papers // Aug 2010

    Software Support for Clock Synchronization Over IEEE 802.11 Wireless LAN With Open Source Drivers

    Between the wired and the wireless world a synchronization gap in terms of accuracy obviously exists due to the different possibilities of the technologies. This paper investigates means to access WLAN functionality in order to gain system wide synchronization between access points and clients in order to establish a common...

    Provided By Austrian Academy of Sciences

  • White Papers // Aug 2010

    Clock Synchronization in Wireless LANs Without Hardware Support

    One typical approach to provide industrial automation networks with real-time guarantees is to plan a communication timeframe, which relies on synchronized clocks at all communication participants. This paper investigates how to reach such clock synchronization accuracy in a wireless LAN, where commercially available chipsets dictate the implementation possibilities. Furthermore, this...

    Provided By Austrian Academy of Sciences

  • White Papers // Jan 2010

    Localisation of Wireless LAN Nodes Using Accurate TDOA Measurements

    Time based localisation methods like GPS are widely used for outdoor navigation, whereas indoor navigation is typically performed only on a cell-basis or based on the Received Signal Strength Indicator. Since RSSI is not able to fulfill all current requirements, Time of Arrival and Time Difference of Arrival based approaches...

    Provided By Austrian Academy of Sciences

  • White Papers // Jul 2009

    Localisation in Wireless Sensor Networks

    The traditional task of a sensor network is data collection and aggregation for further processing. In the case of mobile networks this is usually done via wireless technologies. However, with the establishment of mobility another problem occurs: The question of the actual location of the measured data. This paper proposes...

    Provided By Austrian Academy of Sciences

  • White Papers // Jul 2009

    A Novel, High-Precision Timestamping Platform for Wireless Networks

    The introduction of wireless networks in the factory floor offers many advantages. Besides a new flexibility for automation, also features like the localisation of wireless devices ease the use of this technology. However, for the application on the factory floor real-time guarantees have to be given, which can be ensured...

    Provided By Austrian Academy of Sciences

  • White Papers // Jul 2009

    Security Concepts for Flexible Wireless Automation in Real-Time Environments

    Modern industrial automation systems require flexible, real-time communication networks. To increase flexibility, wireless technologies have become an area of interest in particular for applications involving mobile devices, transmission of data onto moving parts of machinery, or highly distributed devices in environments where cabling is difficult, expensive, or even impossible. However,...

    Provided By Austrian Academy of Sciences