Universite Libre de Bruxelles

Displaying 1-22 of 22 results

  • White Papers // Oct 2012

    WINNER Model for Subway Tunnel at 5.8 GHz

    Modern subways operation relies on wireless systems based on IEEE802.11x modems deployed inside tunnels. Constraints on robustness and needs for high data rates led to the use of MIMO techniques. In order to evaluate performance of MIMO systems in dynamic configurations with moving trains, it is mandatory to develop adequate...

    Provided By Universite Libre de Bruxelles

  • White Papers // Feb 2012

    Semi-Supervised Template Attack

    Side channel attacks take advantage of the information leak-age in a cryptographic device. A template attack is a family of side channel attacks which is reputed to be extremely effective. This kind of attacks supposes that the attacker can fully control a cryptographic de-vice before attacking a similar one. In...

    Provided By Universite Libre de Bruxelles

  • White Papers // Jan 2012

    Internet Traffic Engineering by Optimizing OSPF Weights

    Open Shortest Path First (OSPF) is the most commonly used intra-domain internet routing protocol. Traffic flow is routed along shortest paths, splitting flow at nodes where several outgoing links are on shortest paths to the destination. The weights of the links, and thereby the shortest path routes, can be changed...

    Provided By Universite Libre de Bruxelles

  • White Papers // Aug 2011

    Link-Level Performance of Indoor Body Area Networks With Centralized Topologies

    Sensors networks and, more specifically, Body Area Networks (BANs) are key building blocks of the future generation networks and the Internet of Things as well. In the last years, research has focused on channel modeling and on the design of efficient Medium Access Control (MAC) mechanisms. Less attention has been...

    Provided By Universite Libre de Bruxelles

  • White Papers // Feb 2011

    Yet Another Paper on Minimizing Interference on Ad-Hoc Networks

    Wireless ad-hoc networks consist of a number of electronic devices spread across a geographical area. Each device has wireless communication capability, some level of intelligence for signal processing and networking of the data. Due to the high amount of applications, several papers have appeared dealing with various problems related with...

    Provided By Universite Libre de Bruxelles

  • White Papers // Feb 2011

    Depth-based Runs Tests For Multivariate Central Symmetry

    The author (1990) introduced a nonparametric procedure based on runs for the problem of testing univariate symmetry about the origin (equivalently, about an arbitrary specified center). His procedure first reorders the observations according to their absolute values, and then rejects the null when the number of runs in the resulting...

    Provided By Universite Libre de Bruxelles

  • White Papers // Feb 2011

    Contracts And Markets: Risk Sharing With Hidden Types

    The author studies two way effects between financial markets and other contractual agreements, such as compensation packages within a firm, or mortgages and loans. He construct a model with many Units, in which one of the contracting individuals, the Agent, has private information, while the uninformed individual, the Principal, has...

    Provided By Universite Libre de Bruxelles

  • White Papers // Jan 2011

    International Financial Contagion: The Role Of Banks

    This paper provides an overview of recent theories of international financial contagion, with a focus on models in which the balance sheet constraints of global banks (and other financial institutions) are the key channel of international transmission. During the recent (2007-2009) financial crisis, GDP growth and stock markets collapsed simultaneously...

    Provided By Universite Libre de Bruxelles

  • White Papers // Jul 2010

    Funding, Competition And The Efficiency Of NGOs: An Empirical Analysis Of Noncharitable Expenditure Of US NGOs Engaged In Foreign Aid

    The authors assess the determinants of the wide variation in the efficiency of foreign aid activities across US-based non-governmental organizations (NGOs). In particular, they analyze whether non-charitable expenditures for administration, management and fundraising depend on the intensity of competition among NGOs and on the degree to which they are refinanced...

    Provided By Universite Libre de Bruxelles

  • White Papers // May 2010

    Developping And Testing A Typology Of Growth Strategies Of Entrepreneurial IT Service Firms

    Starting from main concerns and gaps identified in literature on growth strategies, the research, based on Miller's seminal work on strategic configurations, elaborates and tests a typology of strategic configurations for young entrepreneurial IT services firms. The approach is longitudinal, qualitative and exploratory by nature. The proposed configuration typology is...

    Provided By Universite Libre de Bruxelles

  • White Papers // May 2010

    Market Freedom And The Global Recession

    The recent recession has affected all countries around the world in an almost synchronous way. Interestingly, not only has it hit countries with bad macroeconomic fundamentals, but also those with AAA rating. The degree to which countries have been affected by the crisis, on the other hand, has differed and,...

    Provided By Universite Libre de Bruxelles

  • White Papers // Apr 2010

    Probabilistic Coexistence and Throughput of Cognitive Dual-Polarized Networks

    Diversity techniques for cognitive radio networks are important since they enable the primary and secondary terminals to efficiently share the spectral resources in the same location simultaneously. In this paper, the authors investigate a simple, yet powerful, diversity scheme by exploiting the polarimetric dimension. More precisely, they evaluate a scenario...

    Provided By Universite Libre de Bruxelles

  • White Papers // Apr 2010

    Managing Growth Risk: Lessons From The Current Crisis

    The current financial crisis has caused multi-billion dollar losses and broken a long period of strong and steady growth in the investment management industry. Despite the importance of strategic risks, current management practices tend to cope with them poorly, particularly when facing strategic risks linked to growth. Strategic risks are...

    Provided By Universite Libre de Bruxelles

  • White Papers // Mar 2010

    Short-Term Inflation Projections: A Bayesian Vector Autoregressive Approach

    In this paper, the authors construct a large Bayesian Vector Autoregressive model (BVAR) for the Euro Area that captures the complex dynamic inter-relationships between the main components of the Harmonized Index of Consumer Price (HICP) and their determinants. The model is estimated using Bayesian shrinkage. They evaluate the model in...

    Provided By Universite Libre de Bruxelles

  • White Papers // Feb 2010

    Remittances And Domestic Investment In Developing Countries: An Analysis Of The Role Of Financial Sector Development

    This paper addresses the relationship between remittances and home country investment in developing countries. It highlights, through both a theoretical model and an empirical analysis, the role of Financial Sector Development (FSD) in the impact of remittances on home country investment. The key contribution of the paper is to show...

    Provided By Universite Libre de Bruxelles

  • White Papers // Feb 2010

    A Principle for Cryptographic Protocols Beyond Security, Less Parameters

    Almost cryptographic protocols are presented with security arguments. None of them, however, did explain why a protocol should like this, not like that. The reason is that there are short of any principles for designing and analyzing cryptographic protocols. In this paper, the authors put forth such a principle beyond...

    Provided By Universite Libre de Bruxelles

  • White Papers // Jan 2010

    Inflation-Hedging Portfolios In Different Regimes

    The unconventional monetary policies implemented in the wake of the subprime crisis and the recent increase in inflation volatility have revived the debate on medium to long-term resurgence of inflation. This paper presents the optimal strategic asset allocation for investors seeking to hedge inflation risk. Using a vector-autoregressive model, the...

    Provided By Universite Libre de Bruxelles

  • White Papers // Jan 2010

    Getting To The Real Story: What Vietnamese Business People Wish Foreigners Understood About Doing Business In Emerging And Transition Countries Like Vietnam - BEFORE They Start

    Knowledge sharing typically examines organizational transfer of knowledge, often from headquarters to subsidiaries, from developed country sites to emerging country sites, or from host to local employees. Yes, recent research, such as Prahalad's Bottom of the Pyramid, raises the question of reverse transfer of knowledge, or whether knowledge could and...

    Provided By Universite Libre de Bruxelles

  • White Papers // Dec 2009

    XML Multidimensional Modelling and Querying

    As XML becomes ubiquitous and XML storage and processing becomes more efficient, the range of use cases for these technologies widens daily. One promising area is the integration of XML and data warehouses, where an XML-native database stores multidimensional data and processes OLAP queries written in the XQuery interrogation language....

    Provided By Universite Libre de Bruxelles

  • White Papers // Nov 2009

    Underutilisation Of Labour In (Continental Western) Europe: A Detailed GDP Accounting Perspective

    The paper decomposes GDP both in terms of level per capita and growth rate, so as to identify the extent of labour utilisation in Europe and its effect on income differences and economic growth in all EU27 countries. While some caveats are associated with this approach, GDP is broken down...

    Provided By Universite Libre de Bruxelles

  • White Papers // Nov 2009

    FDI Waves, Waves Of Neglect Of Political Risk

    Many studies have underlined the detrimental impact of local political risk on foreign direct investment inflows. In this paper, the authors argue that that relationship depends on the global volume of FDI. After providing a simple model and theoretical arguments suggesting that the relationship should be weaker when there is...

    Provided By Universite Libre de Bruxelles

  • White Papers // Aug 2009

    Do Small Family Businesses Have A Peculiar Attitude Toward Growth? Evidence From French SMEs

    This paper uses a very large sample of French SMEs to study growth of family owned firms. Firms range from total-family to minority control. The estimated relationship accounts for firm characteristics of size and, age, sector, and financial solvency. The results show that firms with greater family control are prone...

    Provided By Universite Libre de Bruxelles

  • White Papers // Mar 2010

    Short-Term Inflation Projections: A Bayesian Vector Autoregressive Approach

    In this paper, the authors construct a large Bayesian Vector Autoregressive model (BVAR) for the Euro Area that captures the complex dynamic inter-relationships between the main components of the Harmonized Index of Consumer Price (HICP) and their determinants. The model is estimated using Bayesian shrinkage. They evaluate the model in...

    Provided By Universite Libre de Bruxelles

  • White Papers // May 2010

    Market Freedom And The Global Recession

    The recent recession has affected all countries around the world in an almost synchronous way. Interestingly, not only has it hit countries with bad macroeconomic fundamentals, but also those with AAA rating. The degree to which countries have been affected by the crisis, on the other hand, has differed and,...

    Provided By Universite Libre de Bruxelles

  • White Papers // Jan 2011

    International Financial Contagion: The Role Of Banks

    This paper provides an overview of recent theories of international financial contagion, with a focus on models in which the balance sheet constraints of global banks (and other financial institutions) are the key channel of international transmission. During the recent (2007-2009) financial crisis, GDP growth and stock markets collapsed simultaneously...

    Provided By Universite Libre de Bruxelles

  • White Papers // Feb 2011

    Depth-based Runs Tests For Multivariate Central Symmetry

    The author (1990) introduced a nonparametric procedure based on runs for the problem of testing univariate symmetry about the origin (equivalently, about an arbitrary specified center). His procedure first reorders the observations according to their absolute values, and then rejects the null when the number of runs in the resulting...

    Provided By Universite Libre de Bruxelles

  • White Papers // Feb 2011

    Contracts And Markets: Risk Sharing With Hidden Types

    The author studies two way effects between financial markets and other contractual agreements, such as compensation packages within a firm, or mortgages and loans. He construct a model with many Units, in which one of the contracting individuals, the Agent, has private information, while the uninformed individual, the Principal, has...

    Provided By Universite Libre de Bruxelles

  • White Papers // Feb 2010

    A Principle for Cryptographic Protocols Beyond Security, Less Parameters

    Almost cryptographic protocols are presented with security arguments. None of them, however, did explain why a protocol should like this, not like that. The reason is that there are short of any principles for designing and analyzing cryptographic protocols. In this paper, the authors put forth such a principle beyond...

    Provided By Universite Libre de Bruxelles

  • White Papers // Dec 2009

    XML Multidimensional Modelling and Querying

    As XML becomes ubiquitous and XML storage and processing becomes more efficient, the range of use cases for these technologies widens daily. One promising area is the integration of XML and data warehouses, where an XML-native database stores multidimensional data and processes OLAP queries written in the XQuery interrogation language....

    Provided By Universite Libre de Bruxelles

  • White Papers // Jul 2010

    Funding, Competition And The Efficiency Of NGOs: An Empirical Analysis Of Noncharitable Expenditure Of US NGOs Engaged In Foreign Aid

    The authors assess the determinants of the wide variation in the efficiency of foreign aid activities across US-based non-governmental organizations (NGOs). In particular, they analyze whether non-charitable expenditures for administration, management and fundraising depend on the intensity of competition among NGOs and on the degree to which they are refinanced...

    Provided By Universite Libre de Bruxelles

  • White Papers // Apr 2010

    Managing Growth Risk: Lessons From The Current Crisis

    The current financial crisis has caused multi-billion dollar losses and broken a long period of strong and steady growth in the investment management industry. Despite the importance of strategic risks, current management practices tend to cope with them poorly, particularly when facing strategic risks linked to growth. Strategic risks are...

    Provided By Universite Libre de Bruxelles

  • White Papers // Jan 2010

    Getting To The Real Story: What Vietnamese Business People Wish Foreigners Understood About Doing Business In Emerging And Transition Countries Like Vietnam - BEFORE They Start

    Knowledge sharing typically examines organizational transfer of knowledge, often from headquarters to subsidiaries, from developed country sites to emerging country sites, or from host to local employees. Yes, recent research, such as Prahalad's Bottom of the Pyramid, raises the question of reverse transfer of knowledge, or whether knowledge could and...

    Provided By Universite Libre de Bruxelles

  • White Papers // May 2010

    Developping And Testing A Typology Of Growth Strategies Of Entrepreneurial IT Service Firms

    Starting from main concerns and gaps identified in literature on growth strategies, the research, based on Miller's seminal work on strategic configurations, elaborates and tests a typology of strategic configurations for young entrepreneurial IT services firms. The approach is longitudinal, qualitative and exploratory by nature. The proposed configuration typology is...

    Provided By Universite Libre de Bruxelles

  • White Papers // Feb 2010

    Remittances And Domestic Investment In Developing Countries: An Analysis Of The Role Of Financial Sector Development

    This paper addresses the relationship between remittances and home country investment in developing countries. It highlights, through both a theoretical model and an empirical analysis, the role of Financial Sector Development (FSD) in the impact of remittances on home country investment. The key contribution of the paper is to show...

    Provided By Universite Libre de Bruxelles

  • White Papers // Nov 2009

    FDI Waves, Waves Of Neglect Of Political Risk

    Many studies have underlined the detrimental impact of local political risk on foreign direct investment inflows. In this paper, the authors argue that that relationship depends on the global volume of FDI. After providing a simple model and theoretical arguments suggesting that the relationship should be weaker when there is...

    Provided By Universite Libre de Bruxelles

  • White Papers // Nov 2009

    Underutilisation Of Labour In (Continental Western) Europe: A Detailed GDP Accounting Perspective

    The paper decomposes GDP both in terms of level per capita and growth rate, so as to identify the extent of labour utilisation in Europe and its effect on income differences and economic growth in all EU27 countries. While some caveats are associated with this approach, GDP is broken down...

    Provided By Universite Libre de Bruxelles

  • White Papers // Jan 2010

    Inflation-Hedging Portfolios In Different Regimes

    The unconventional monetary policies implemented in the wake of the subprime crisis and the recent increase in inflation volatility have revived the debate on medium to long-term resurgence of inflation. This paper presents the optimal strategic asset allocation for investors seeking to hedge inflation risk. Using a vector-autoregressive model, the...

    Provided By Universite Libre de Bruxelles

  • White Papers // Aug 2009

    Do Small Family Businesses Have A Peculiar Attitude Toward Growth? Evidence From French SMEs

    This paper uses a very large sample of French SMEs to study growth of family owned firms. Firms range from total-family to minority control. The estimated relationship accounts for firm characteristics of size and, age, sector, and financial solvency. The results show that firms with greater family control are prone...

    Provided By Universite Libre de Bruxelles

  • White Papers // Apr 2010

    Probabilistic Coexistence and Throughput of Cognitive Dual-Polarized Networks

    Diversity techniques for cognitive radio networks are important since they enable the primary and secondary terminals to efficiently share the spectral resources in the same location simultaneously. In this paper, the authors investigate a simple, yet powerful, diversity scheme by exploiting the polarimetric dimension. More precisely, they evaluate a scenario...

    Provided By Universite Libre de Bruxelles

  • White Papers // Aug 2011

    Link-Level Performance of Indoor Body Area Networks With Centralized Topologies

    Sensors networks and, more specifically, Body Area Networks (BANs) are key building blocks of the future generation networks and the Internet of Things as well. In the last years, research has focused on channel modeling and on the design of efficient Medium Access Control (MAC) mechanisms. Less attention has been...

    Provided By Universite Libre de Bruxelles

  • White Papers // Feb 2011

    Yet Another Paper on Minimizing Interference on Ad-Hoc Networks

    Wireless ad-hoc networks consist of a number of electronic devices spread across a geographical area. Each device has wireless communication capability, some level of intelligence for signal processing and networking of the data. Due to the high amount of applications, several papers have appeared dealing with various problems related with...

    Provided By Universite Libre de Bruxelles

  • White Papers // Feb 2012

    Semi-Supervised Template Attack

    Side channel attacks take advantage of the information leak-age in a cryptographic device. A template attack is a family of side channel attacks which is reputed to be extremely effective. This kind of attacks supposes that the attacker can fully control a cryptographic de-vice before attacking a similar one. In...

    Provided By Universite Libre de Bruxelles

  • White Papers // Jan 2012

    Internet Traffic Engineering by Optimizing OSPF Weights

    Open Shortest Path First (OSPF) is the most commonly used intra-domain internet routing protocol. Traffic flow is routed along shortest paths, splitting flow at nodes where several outgoing links are on shortest paths to the destination. The weights of the links, and thereby the shortest path routes, can be changed...

    Provided By Universite Libre de Bruxelles

  • White Papers // Oct 2012

    WINNER Model for Subway Tunnel at 5.8 GHz

    Modern subways operation relies on wireless systems based on IEEE802.11x modems deployed inside tunnels. Constraints on robustness and needs for high data rates led to the use of MIMO techniques. In order to evaluate performance of MIMO systems in dynamic configurations with moving trains, it is mandatory to develop adequate...

    Provided By Universite Libre de Bruxelles