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Humboldt University Berlin
(23 results)-
White Papers
About the GSM-Dm-Channels
July 8, 2009, 12:00am PDT
Development of ISDN was prerequisite to the development of GSM, not only from a technological point of view, but also because of the amount of thought required to work out the signaling between a...
Provided by Humboldt University Berlin
-
White Papers
Highly Available Location-Based Services in Mobile Environments
January 1, 2011, 12:00am PST
The authors show how to use Web Services standards for propagation, discovery, and composition of location-based services in mobile environments. To achieve semantic interoperability the authors...
Provided by Humboldt University Berlin
-
White Papers
Optimal Procurement Contracts With Pre-Project Planning
January 18, 2010, 12:00am PST
The paper studies procurement contracts with pre - project investigations in the presence of adverse selection and moral hazard. To model the procurer's problem, the authors extend a standard...
Provided by Humboldt University Berlin
-
White Papers
Innovation Contests With Entry Auction
February 1, 2010, 12:00am PST
The authors consider procurement of an innovation from heterogeneous sellers. Innovations are random but depend on unobservable effort and private information. They compare two procurement...
Provided by Humboldt University Berlin
-
White Papers
Multi-Channel Opportunistic Routing
February 12, 2007, 12:00am PST
The authors propose and investigate Multi-Channel Extremely Opportunistic Routing (MCExOR) which is a protocol that extends Extremely Opportunistic Routing by utilizing multiple RF channels in...
Provided by Humboldt University Berlin
-
White Papers
Emerging Markets for RFID Traces
June 5, 2006, 12:00am PDT
RFID tags are held to become ubiquitous in logistics in the near future, and item-level tagging will pave the way for Ubiquitous Computing, for example in application fields like smart homes. The...
Provided by Humboldt University Berlin
-
White Papers
Competition Policy And Productivity Growth: An Empirical Assessment
October 1, 2009, 12:00am PDT
This paper empirically investigates the effectiveness of competition policy by estimating its impact on Total Factor Productivity (TFP) growth for 22 industries in 12 OECD countries over the...
Provided by Humboldt University Berlin
-
White Papers
Intelligent Scientific Authoring Tools: Interactive Data Mining for Constructive Uses of Citation Networks
August 12, 2009, 12:00am PDT
Many powerful methods and tools exist for extracting meaning from scientific publications, their texts, and their citation links. However, existing proposals often neglect a fundamental aspect of...
Provided by Humboldt University Berlin
-
White Papers
On Interrelations Of Recurrences And Connectivity Trends Between Stock Indices
March 27, 2011, 12:00am PDT
Financial data has been extensively studied for correlations using Pearson's cross-correlation coefficient ñ as the point of departure. The authors employ an estimator based on recurrence plots -...
Provided by Humboldt University Berlin
-
White Papers
Results On Numerics For FBSDE With Drivers Of Quadratic Growth
April 14, 2009, 12:00am PDT
The authors consider the problem of numerical approximation for Forward-Backward Stochastic Differential Equations with drivers of quadratic growth (qgFBSDE). To illustrate the significance of...
Provided by Humboldt University Berlin
-
White Papers
Competition Policy Trends And Economic Growth: Cross-National Empirical Evidence
November 1, 2009, 12:00am PDT
Motivated by the general lack of empirical scholarship concerning the cross-national environment for competition policy, the author presents measures here of the overall resources dedicated to...
Provided by Humboldt University Berlin
-
White Papers
The Role Of Leadership In The Process Of Establishing And Sustaining Cooperation
October 1, 2006, 12:00am PDT
The paper investigates the role of leadership in the process of establishing and the functioning of organizations. The authors ask about leaders' motivation to perform their tasks and the...
Provided by Humboldt University Berlin
-
White Papers
Distortions In A Multi-level Co-financing System: The Case Of The Agri-environmental Programme Of Saxony-Anhalt
March 5, 2010, 12:00am PST
In this paper, the authors analyze the impact of the EU multi-level co-financing system on regional policy-making and priority setting taking the case of the agri-environmental programme of...
Provided by Humboldt University Berlin
-
White Papers
Market Share Dynamics In A Model With Search And Word-of-mouth Communication
January 15, 2010, 12:00am PST
This paper analyzes price competition in an infinitely repeated duopoly game. In each period, consumers remember the existence and location of their previous supplier. New information is gathered...
Provided by Humboldt University Berlin
-
White Papers
Reinvestigating Channel Orthogonality - Adjacent Channel Interference in IEEE 802.11n Networks
September 9, 2011, 12:00am PDT
In this paper, the authors analyze the adverse effects of Adjacent Channel Interference (ACI) on 802.11 with a focus on new 802.11n standard. ACI is causing problems that are related to the...
Provided by Humboldt University Berlin
-
White Papers
ClickWatch - An Experimentation Framework for Communication Network Test-Beds
August 22, 2011, 12:00am PDT
It is hard to experiment with test-beds for communication networks: data produced in the network has to be retrieved and analyzed, networks must be reconfigured before and between experiments,...
Provided by Humboldt University Berlin
-
White Papers
Evaluation of a Low-Cost IEEE 802.11n MIMO Testbed
August 22, 2011, 12:00am PDT
This paper presents and evaluates a configurable and inexpensive MIMO mesh network platform based on IEEE 802.11n and open source software for research purposes. The requirements on such a...
Provided by Humboldt University Berlin
-
White Papers
Greedy Scheduling Algorithm (GSA): Design and Evaluation of an Efficient and Flexible WiMAX OFDMA Scheduling Solution
August 10, 2009, 12:00am PDT
WiMAX is one of the most promising technologies to provide broadband wireless access in the near future. In this paper, the authors focus on the study of the combined performance of a WiMAX Base...
Provided by Humboldt University Berlin
-
White Papers
On the Challenges for the Maximization of Radio Resources Usage in WiMAX Networks
October 10, 2007, 12:00am PDT
WiMAX is one of the most promising technologies to provide broadband wireless access in the near future. In this paper, the authors identify a key element for the performance of a WiMAX network,...
Provided by Humboldt University Berlin
-
White Papers
Availability of Data in Locality-Aware Unreliable Networks
April 20, 2010, 12:00am PDT
The goal of the authors' paper is to improve data availability in large-scale wireless networks in a disaster scenario, where spatially correlated group of nodes may fail. In this paper, they...
Provided by Humboldt University Berlin
-
White Papers
Cause-Effect Graphs for Test Models Based on UML and OCL
May 29, 2008, 12:00am PDT
The primary goal of testing is to detect as many faults of a System Under Test (SUT) as possible. For that, the behaviour of the SUT is compared to a behaviour specification. In model-based...
Provided by Humboldt University Berlin
-
White Papers
On Frequency-Selective Scheduling in SDMA-OFDMA Systems
February 29, 2012, 12:00am PST
Orthogonal Frequency Division Multiple Access (OFDMA) is a multi-user version of the Orthogonal Frequency Division Multiplexing (OFDM) transmission technique, which divides a wideband channel into...
Provided by Humboldt University Berlin
-
White Papers
Towards MAC/Anycast Diversity in IEEE 802.11n MIMO Networks
March 9, 2012, 12:00am PST
Opportunistic Routing (OR) is a novel routing technique for wireless mesh networks that exploits the broadcast nature of the wireless medium. OR combines frames from multiple receivers and...
Provided by Humboldt University Berlin
-
White Papers
Towards MAC/Anycast Diversity in IEEE 802.11n MIMO Networks
March 9, 2012, 12:00am PST
Opportunistic Routing (OR) is a novel routing technique for wireless mesh networks that exploits the broadcast nature of the wireless medium. OR combines frames from multiple receivers and...
Provided by Humboldt University Berlin
-
White Papers
On Frequency-Selective Scheduling in SDMA-OFDMA Systems
February 29, 2012, 12:00am PST
Orthogonal Frequency Division Multiple Access (OFDMA) is a multi-user version of the Orthogonal Frequency Division Multiplexing (OFDM) transmission technique, which divides a wideband channel into...
Provided by Humboldt University Berlin
-
White Papers
Availability of Data in Locality-Aware Unreliable Networks
April 20, 2010, 12:00am PDT
The goal of the authors' paper is to improve data availability in large-scale wireless networks in a disaster scenario, where spatially correlated group of nodes may fail. In this paper, they...
Provided by Humboldt University Berlin
-
White Papers
On the Challenges for the Maximization of Radio Resources Usage in WiMAX Networks
October 10, 2007, 12:00am PDT
WiMAX is one of the most promising technologies to provide broadband wireless access in the near future. In this paper, the authors identify a key element for the performance of a WiMAX network,...
Provided by Humboldt University Berlin
-
White Papers
Greedy Scheduling Algorithm (GSA): Design and Evaluation of an Efficient and Flexible WiMAX OFDMA Scheduling Solution
August 10, 2009, 12:00am PDT
WiMAX is one of the most promising technologies to provide broadband wireless access in the near future. In this paper, the authors focus on the study of the combined performance of a WiMAX Base...
Provided by Humboldt University Berlin
-
White Papers
Evaluation of a Low-Cost IEEE 802.11n MIMO Testbed
August 22, 2011, 12:00am PDT
This paper presents and evaluates a configurable and inexpensive MIMO mesh network platform based on IEEE 802.11n and open source software for research purposes. The requirements on such a...
Provided by Humboldt University Berlin
-
White Papers
ClickWatch - An Experimentation Framework for Communication Network Test-Beds
August 22, 2011, 12:00am PDT
It is hard to experiment with test-beds for communication networks: data produced in the network has to be retrieved and analyzed, networks must be reconfigured before and between experiments,...
Provided by Humboldt University Berlin
-
White Papers
Reinvestigating Channel Orthogonality - Adjacent Channel Interference in IEEE 802.11n Networks
September 9, 2011, 12:00am PDT
In this paper, the authors analyze the adverse effects of Adjacent Channel Interference (ACI) on 802.11 with a focus on new 802.11n standard. ACI is causing problems that are related to the...
Provided by Humboldt University Berlin
-
White Papers
Market Share Dynamics In A Model With Search And Word-of-mouth Communication
January 15, 2010, 12:00am PST
This paper analyzes price competition in an infinitely repeated duopoly game. In each period, consumers remember the existence and location of their previous supplier. New information is gathered...
Provided by Humboldt University Berlin
-
White Papers
Distortions In A Multi-level Co-financing System: The Case Of The Agri-environmental Programme Of Saxony-Anhalt
March 5, 2010, 12:00am PST
In this paper, the authors analyze the impact of the EU multi-level co-financing system on regional policy-making and priority setting taking the case of the agri-environmental programme of...
Provided by Humboldt University Berlin
-
White Papers
The Role Of Leadership In The Process Of Establishing And Sustaining Cooperation
October 1, 2006, 12:00am PDT
The paper investigates the role of leadership in the process of establishing and the functioning of organizations. The authors ask about leaders' motivation to perform their tasks and the...
Provided by Humboldt University Berlin
-
White Papers
Competition Policy Trends And Economic Growth: Cross-National Empirical Evidence
November 1, 2009, 12:00am PDT
Motivated by the general lack of empirical scholarship concerning the cross-national environment for competition policy, the author presents measures here of the overall resources dedicated to...
Provided by Humboldt University Berlin
-
White Papers
Results On Numerics For FBSDE With Drivers Of Quadratic Growth
April 14, 2009, 12:00am PDT
The authors consider the problem of numerical approximation for Forward-Backward Stochastic Differential Equations with drivers of quadratic growth (qgFBSDE). To illustrate the significance of...
Provided by Humboldt University Berlin
-
White Papers
On Interrelations Of Recurrences And Connectivity Trends Between Stock Indices
March 27, 2011, 12:00am PDT
Financial data has been extensively studied for correlations using Pearson's cross-correlation coefficient ñ as the point of departure. The authors employ an estimator based on recurrence plots -...
Provided by Humboldt University Berlin
-
White Papers
Intelligent Scientific Authoring Tools: Interactive Data Mining for Constructive Uses of Citation Networks
August 12, 2009, 12:00am PDT
Many powerful methods and tools exist for extracting meaning from scientific publications, their texts, and their citation links. However, existing proposals often neglect a fundamental aspect of...
Provided by Humboldt University Berlin
-
White Papers
Competition Policy And Productivity Growth: An Empirical Assessment
October 1, 2009, 12:00am PDT
This paper empirically investigates the effectiveness of competition policy by estimating its impact on Total Factor Productivity (TFP) growth for 22 industries in 12 OECD countries over the...
Provided by Humboldt University Berlin
-
White Papers
Emerging Markets for RFID Traces
June 5, 2006, 12:00am PDT
RFID tags are held to become ubiquitous in logistics in the near future, and item-level tagging will pave the way for Ubiquitous Computing, for example in application fields like smart homes. The...
Provided by Humboldt University Berlin
-
White Papers
Multi-Channel Opportunistic Routing
February 12, 2007, 12:00am PST
The authors propose and investigate Multi-Channel Extremely Opportunistic Routing (MCExOR) which is a protocol that extends Extremely Opportunistic Routing by utilizing multiple RF channels in...
Provided by Humboldt University Berlin
-
White Papers
Innovation Contests With Entry Auction
February 1, 2010, 12:00am PST
The authors consider procurement of an innovation from heterogeneous sellers. Innovations are random but depend on unobservable effort and private information. They compare two procurement...
Provided by Humboldt University Berlin
-
White Papers
Optimal Procurement Contracts With Pre-Project Planning
January 18, 2010, 12:00am PST
The paper studies procurement contracts with pre - project investigations in the presence of adverse selection and moral hazard. To model the procurer's problem, the authors extend a standard...
Provided by Humboldt University Berlin
-
White Papers
Highly Available Location-Based Services in Mobile Environments
January 1, 2011, 12:00am PST
The authors show how to use Web Services standards for propagation, discovery, and composition of location-based services in mobile environments. To achieve semantic interoperability the authors...
Provided by Humboldt University Berlin
-
White Papers
About the GSM-Dm-Channels
July 8, 2009, 12:00am PDT
Development of ISDN was prerequisite to the development of GSM, not only from a technological point of view, but also because of the amount of thought required to work out the signaling between a...
Provided by Humboldt University Berlin
-
White Papers
Cause-Effect Graphs for Test Models Based on UML and OCL
May 29, 2008, 12:00am PDT
The primary goal of testing is to detect as many faults of a System Under Test (SUT) as possible. For that, the behaviour of the SUT is compared to a behaviour specification. In model-based...
Provided by Humboldt University Berlin
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