University of Linz

Displaying 1-19 of 19 results

  • White Papers // Apr 2014

    Determining Majority in Networks With Local Interactions and Very Small Local Memory

    The authors study here the problem of determining the majority type in an arbitrary connected network, each vertex of which has initially two possible types (states). The vertices may have a few additional possible states and can interact in pairs only if they share an edge. Any (population) protocol is...

    Provided By University of Linz

  • White Papers // Feb 2013

    Distributed Deterministic Broadcasting in Uniform-Power Ad Hoc Wireless Networks

    Development of many futuristic technologies, such as MANET, VANET, iThings, nano-devices, depend on efficient distributed communication protocols in multi-hop ad hoc networks. A vast majority of research in this area focus on design heuristic protocols, and analyze their performance by simulations on networks generated randomly or obtained in practical measurements...

    Provided By University of Linz

  • White Papers // Nov 2012

    Semi-Blind CoMP System With Multiple-CFO Estimation and ICA Based Equalization

    The authors propose an Orthogonal Frequency Division Multiplexing (OFDM) based semi-blind Coordinated Multi-Point (CoMP) system, with a low complexity estimation approach for multiple Carrier Frequency Offsets (CFOs), and an equalization structure based on the Independent Component Analysis (ICA). Their work is different in that a small number of well-designed pilot...

    Provided By University of Linz

  • White Papers // Oct 2012

    Validation of a Green Wireless Communication System with ICA Based Semi-Blind Equalization

    In this paper, the authors validate a green wireless communication system with the Independent Component Analysis (ICA) based and pre-coding aided semi-blind equalization, on a test-bed which consist of a pair of Keithley signal generator and signal analyzer connected to antennas. The implemented system requires only a small amount of...

    Provided By University of Linz

  • White Papers // May 2012

    Impact of Variance of Heterogeneous Spectrum on Performance of Cognitive Radio Ad Hoc Networks

    This paper addresses the impact of dynamic spatiotemporal variance of heterogeneous spectrum on the performance of the Cognitive Radio Ad Hoc Networks (CRAHNs). A dynamic heterogeneous spectrums Multiple Channels Reuse Areas (MCRA) model is set up for a Cognitive Radio (CR) node to characterize the interference from the other nodes,...

    Provided By University of Linz

  • White Papers // Jan 2012

    Biometric Systems

    This paper covers the field of biometric systems with a special focus on biometric authentication systems. A short and general overview of biometric authentication systems gives some insight in how the various biometric data can be used for authentication. After that an abstracted view of biometric systems is given, followed...

    Provided By University of Linz

  • White Papers // Oct 2011

    Asymmetric Resource Allocation for Multi-Destination Relay Systems

    An Asymmetric Resource Allocation (ARA) scheme for the downlink wireless multi-destination relay systems with Orthogonal Frequency Division Multiplexing (OFDM) modulation is proposed. Unlike the previous work, the transmission durations at the source (base station) and the relay are designed to be asymmetric, which enhances the degree of freedom for transmission....

    Provided By University of Linz

  • White Papers // Apr 2011

    Dynamic Spectrum Sharing Models for Cognitive Radio Aided Ad Hoc Networks and Their Performance Analysis

    In this paper, two dynamic spectrum sharing models are proposed, namely a Markov-chain model and a queue-based model in order, to evaluate the performance of CRAHNs, where the shared Primary Channels (PCs) are complemented by unshared Secondary Channels (SCs). The new contribution of this paper is as follows. The authors'...

    Provided By University of Linz

  • White Papers // Mar 2011

    Design and Development of B2B e-Commerce Framework for Malaysian SMEs

    With internet technologies increasing E-marketing is growing exponentially. The Small and Medium Sized Enterprises (SMEs) should take advantage of the internet and refocus their business strategies to improve their competitiveness. The development and usage of Business-To-Business (B2B) E-commerce enabling technology has caused profound changes to the e-Business environment. The purpose...

    Provided By University of Linz

  • White Papers // Dec 2010

    Banks, Financial Markets And International Consumption Risk Sharing

    In this paper the authors empirically explore how characteristics of the domestic financial system in influence the international allocation of consumption risk using a sample of OECD countries. These results show that the extent of risk sharing achieved does not depend on the overall development of the domestic financial system...

    Provided By University of Linz

  • White Papers // Mar 2010

    Supply Chain Integration: Definition and Challenges

    Ever Since the Council of Supply Chain Management Professionals (CSCMP) Defined Supply Chain Management and the Council of Logistics Management (CLM) adopted the definition of logistics in 1984, the integration of a supply chain processes or activities became obligatory definition. Many firms have extended their chain from upstream and downstream...

    Provided By University of Linz

  • White Papers // Feb 2010

    Price Points In E-Commerce

    Basu (2006) argues that the prevalence of 99 cent prices in shops can be explained with rational consumers who disregard the rightmost digits of the price. This bounded rational behavior leads to Bertrand equilibrium with positive markups. The authors use data from an Austrian price comparison site and find results...

    Provided By University of Linz

  • White Papers // Nov 2009

    Volatility, Information And Stock Market Crashes

    In this paper, the authors examine the evolution of the S&P500 returns volatility around market crashes using a Markov-Switching model. They find that volatility typically switches into the high volatility state well before a crash and remains in the high state for a considerable period of time after the crash....

    Provided By University of Linz

  • White Papers // Oct 2009

    Inflation Dynamics In The New EU Member States: How Relevant Are External Factors?

    In this paper the authors evaluate the relative in influence of external versus domestic in inflation drivers in the 12 new European Union (EU) member countries. This empirical analysis is based on the New Keynesian Phillips Curve (NKPC) derived in Gali and Monacelli (2005) for Small Open Economies (SOE). Employing...

    Provided By University of Linz

  • White Papers // Oct 2009

    Bank-Lending Standards, The Cost Channel And Inflation Dynamics

    If firms borrow working capital to finance production, then nominal interest rates have a direct influence on inflation dynamics, which appears to be the case empirically. However, interest rates may only partly mirror the cost of working capital. In this paper the authors explore the role of bank lending standards...

    Provided By University of Linz

  • White Papers // Sep 2008

    Equity And International Trade

    The authors develop a generalized approach to the treatment of household inequality aspects of social welfare in general equilibrium models of trade. They follow a dual approach, highlighting how general equilibrium distributional aspects of social welfare related to import protection may be examined alongside corresponding efficiency aspects. They work with...

    Provided By University of Linz

  • White Papers // Sep 2008

    Cross-Border Trade And FDI In Services

    Working with a panel dataset of OECD countries over the decade 1994-2004, the authors examine linkages between cross-border trade and FDI in the service sectors. They first develop a consistent analytical framework for the application of the gravity model jointly to services trade and commercial presence (i.e. FDI), using a...

    Provided By University of Linz

  • White Papers // Sep 2008

    Optimum Taxation Of Inheritances

    Inheritances create a second distinguishing characteristic of individuals, in addition to earning abilities. The authors incorporate this fact into an optimum income taxation model with bequests motivated by joy of giving, and show that a tax on inherited wealth is equivalent to a uniform tax on consumption plus bequests. These...

    Provided By University of Linz

  • White Papers // Dec 2007

    Formal Affordance-Based Models of Computer Virus Reproduction

    The authors present a novel classification of computer viruses using a formalized notion of reproductive models based on gibson's theory of affordances. A computer virus reproduction model consists of: a labeled transition system to represent the states and actions involved in that virus's reproduction; a notion of entities that are...

    Provided By University of Linz

  • White Papers // Oct 2009

    Inflation Dynamics In The New EU Member States: How Relevant Are External Factors?

    In this paper the authors evaluate the relative in influence of external versus domestic in inflation drivers in the 12 new European Union (EU) member countries. This empirical analysis is based on the New Keynesian Phillips Curve (NKPC) derived in Gali and Monacelli (2005) for Small Open Economies (SOE). Employing...

    Provided By University of Linz

  • White Papers // Sep 2008

    Equity And International Trade

    The authors develop a generalized approach to the treatment of household inequality aspects of social welfare in general equilibrium models of trade. They follow a dual approach, highlighting how general equilibrium distributional aspects of social welfare related to import protection may be examined alongside corresponding efficiency aspects. They work with...

    Provided By University of Linz

  • White Papers // Sep 2008

    Cross-Border Trade And FDI In Services

    Working with a panel dataset of OECD countries over the decade 1994-2004, the authors examine linkages between cross-border trade and FDI in the service sectors. They first develop a consistent analytical framework for the application of the gravity model jointly to services trade and commercial presence (i.e. FDI), using a...

    Provided By University of Linz

  • White Papers // Sep 2008

    Optimum Taxation Of Inheritances

    Inheritances create a second distinguishing characteristic of individuals, in addition to earning abilities. The authors incorporate this fact into an optimum income taxation model with bequests motivated by joy of giving, and show that a tax on inherited wealth is equivalent to a uniform tax on consumption plus bequests. These...

    Provided By University of Linz

  • White Papers // Jan 2012

    Biometric Systems

    This paper covers the field of biometric systems with a special focus on biometric authentication systems. A short and general overview of biometric authentication systems gives some insight in how the various biometric data can be used for authentication. After that an abstracted view of biometric systems is given, followed...

    Provided By University of Linz

  • White Papers // May 2012

    Impact of Variance of Heterogeneous Spectrum on Performance of Cognitive Radio Ad Hoc Networks

    This paper addresses the impact of dynamic spatiotemporal variance of heterogeneous spectrum on the performance of the Cognitive Radio Ad Hoc Networks (CRAHNs). A dynamic heterogeneous spectrums Multiple Channels Reuse Areas (MCRA) model is set up for a Cognitive Radio (CR) node to characterize the interference from the other nodes,...

    Provided By University of Linz

  • White Papers // Apr 2011

    Dynamic Spectrum Sharing Models for Cognitive Radio Aided Ad Hoc Networks and Their Performance Analysis

    In this paper, two dynamic spectrum sharing models are proposed, namely a Markov-chain model and a queue-based model in order, to evaluate the performance of CRAHNs, where the shared Primary Channels (PCs) are complemented by unshared Secondary Channels (SCs). The new contribution of this paper is as follows. The authors'...

    Provided By University of Linz

  • White Papers // Oct 2012

    Validation of a Green Wireless Communication System with ICA Based Semi-Blind Equalization

    In this paper, the authors validate a green wireless communication system with the Independent Component Analysis (ICA) based and pre-coding aided semi-blind equalization, on a test-bed which consist of a pair of Keithley signal generator and signal analyzer connected to antennas. The implemented system requires only a small amount of...

    Provided By University of Linz

  • White Papers // Mar 2011

    Design and Development of B2B e-Commerce Framework for Malaysian SMEs

    With internet technologies increasing E-marketing is growing exponentially. The Small and Medium Sized Enterprises (SMEs) should take advantage of the internet and refocus their business strategies to improve their competitiveness. The development and usage of Business-To-Business (B2B) E-commerce enabling technology has caused profound changes to the e-Business environment. The purpose...

    Provided By University of Linz

  • White Papers // Mar 2010

    Supply Chain Integration: Definition and Challenges

    Ever Since the Council of Supply Chain Management Professionals (CSCMP) Defined Supply Chain Management and the Council of Logistics Management (CLM) adopted the definition of logistics in 1984, the integration of a supply chain processes or activities became obligatory definition. Many firms have extended their chain from upstream and downstream...

    Provided By University of Linz

  • White Papers // Dec 2007

    Formal Affordance-Based Models of Computer Virus Reproduction

    The authors present a novel classification of computer viruses using a formalized notion of reproductive models based on gibson's theory of affordances. A computer virus reproduction model consists of: a labeled transition system to represent the states and actions involved in that virus's reproduction; a notion of entities that are...

    Provided By University of Linz

  • White Papers // Dec 2010

    Banks, Financial Markets And International Consumption Risk Sharing

    In this paper the authors empirically explore how characteristics of the domestic financial system in influence the international allocation of consumption risk using a sample of OECD countries. These results show that the extent of risk sharing achieved does not depend on the overall development of the domestic financial system...

    Provided By University of Linz

  • White Papers // Feb 2010

    Price Points In E-Commerce

    Basu (2006) argues that the prevalence of 99 cent prices in shops can be explained with rational consumers who disregard the rightmost digits of the price. This bounded rational behavior leads to Bertrand equilibrium with positive markups. The authors use data from an Austrian price comparison site and find results...

    Provided By University of Linz

  • White Papers // Nov 2009

    Volatility, Information And Stock Market Crashes

    In this paper, the authors examine the evolution of the S&P500 returns volatility around market crashes using a Markov-Switching model. They find that volatility typically switches into the high volatility state well before a crash and remains in the high state for a considerable period of time after the crash....

    Provided By University of Linz

  • White Papers // Oct 2009

    Bank-Lending Standards, The Cost Channel And Inflation Dynamics

    If firms borrow working capital to finance production, then nominal interest rates have a direct influence on inflation dynamics, which appears to be the case empirically. However, interest rates may only partly mirror the cost of working capital. In this paper the authors explore the role of bank lending standards...

    Provided By University of Linz

  • White Papers // Nov 2012

    Semi-Blind CoMP System With Multiple-CFO Estimation and ICA Based Equalization

    The authors propose an Orthogonal Frequency Division Multiplexing (OFDM) based semi-blind Coordinated Multi-Point (CoMP) system, with a low complexity estimation approach for multiple Carrier Frequency Offsets (CFOs), and an equalization structure based on the Independent Component Analysis (ICA). Their work is different in that a small number of well-designed pilot...

    Provided By University of Linz

  • White Papers // Feb 2013

    Distributed Deterministic Broadcasting in Uniform-Power Ad Hoc Wireless Networks

    Development of many futuristic technologies, such as MANET, VANET, iThings, nano-devices, depend on efficient distributed communication protocols in multi-hop ad hoc networks. A vast majority of research in this area focus on design heuristic protocols, and analyze their performance by simulations on networks generated randomly or obtained in practical measurements...

    Provided By University of Linz

  • White Papers // Oct 2011

    Asymmetric Resource Allocation for Multi-Destination Relay Systems

    An Asymmetric Resource Allocation (ARA) scheme for the downlink wireless multi-destination relay systems with Orthogonal Frequency Division Multiplexing (OFDM) modulation is proposed. Unlike the previous work, the transmission durations at the source (base station) and the relay are designed to be asymmetric, which enhances the degree of freedom for transmission....

    Provided By University of Linz

  • White Papers // Apr 2014

    Determining Majority in Networks With Local Interactions and Very Small Local Memory

    The authors study here the problem of determining the majority type in an arbitrary connected network, each vertex of which has initially two possible types (states). The vertices may have a few additional possible states and can interact in pairs only if they share an edge. Any (population) protocol is...

    Provided By University of Linz