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Czech Technical University
(31 results)-
White Papers
Initialization of Handover Procedure in WiMAX Networks
April 1, 2009, 12:00am PDT
This paper introduces a new approach in the triggering of handover procedure in WiMAX networks. Mobile WiMAX, based on the IEEE 802.16e standard, supports a several types of handovers and allows...
Provided by Czech Technical University
-
White Papers
Routing Protocol for Mobile Ad-hoc Wireless Networks
September 1, 2007, 12:00am PDT
Bluetooth is a cutting-edge technology used for implementing wireless ad-hoc networks. In order to provide an overall scheme for mobile ad-hoc networks, this paper deals with scatternet topology...
Provided by Czech Technical University
-
White Papers
A Comparison of XML-Based Temporal Models
August 16, 2007, 12:00am PDT
Much research work has recently focused on the problem of representing historical information in XML. This paper describes a number of temporal XML data models and provides their comparison...
Provided by Czech Technical University
-
White Papers
Visualisation Techniques Connecting VRML and GENESIS Environments
June 9, 2009, 12:00am PDT
The authors created the tool, which combines the powerful GENESIS (GEneral NEural SImulation System) simulation language with the up-to-date visualisation and internet techniques. The solution...
Provided by Czech Technical University
-
White Papers
A Tool for Evaluation and Optimization of Web Application Performance
March 23, 2010, 12:00am PDT
One of the main goals of web application developers is to design fast systems that can respond to users in short time. Fast systems response increases user satisfaction. Although this fact is well...
Provided by Czech Technical University
-
White Papers
Evaluation and Optimization of Web Application Performance Under Varying Network Conditions
March 23, 2010, 12:00am PDT
System performance testing measures application responsiveness for end users and aids in identifying bottlenecks in service delivery. For web applications, performance is typically reported in...
Provided by Czech Technical University
-
White Papers
Performance Optimization for Enterprise Web Applications Through Remote Client Simulation
June 15, 2010, 12:00am PDT
Contemporary enterprise web applications provide complex user interface functionality to attract users with desktop-like features. Naturally, such increasing UI complexity and user expectation...
Provided by Czech Technical University
-
Whitepapers
Initialization Procedure of Wireless Network Coding With Hierarchical Decode & Forward Strategy in Random Connectivity Networks
August 28, 2012, 12:00am PDT
A Wireless Network Coding (WNC) a.k.a. a Physical Layer Network Coding in multi-source multi-node scenarios has shown its potential to increase network throughput compared to a communication based...
Provided by Czech Technical University
-
Whitepapers
Systematic Design of Hierarchical Network Code Mapper for Butterfly Network Relaying
April 20, 2012, 12:00am PDT
A majority of the research results on Wireless Network Coding (WNC) considers only a basic 2-Way Relay Channel (2-WRC) system scenario, where the Complementary Side Information (C-SI) is naturally...
Provided by Czech Technical University
-
Whitepapers
Communication and Powering Scheme for Wireless and Battery-Less Measurement
April 1, 2012, 12:00am PDT
The paper presents solution for wireless and battery-less measurement in the enclosed areas. The principle is based on passive RFID; nevertheless this paper is focused on high power-demanding...
Provided by Czech Technical University
-
Whitepapers
Identification of Communication Solution Designated for Transport Telematic Applications
February 1, 2008, 12:00am PST
Communications solution represents one of the key parts of the Intelligent Transport System (ITS). Goal of the authors' paper is to improve over-ground traffic efficiency and security,...
Provided by Czech Technical University
-
Whitepapers
On Indexing of Lattice-Constellations for Wireless Network Coding With Modulo-Sum Decoding
January 29, 2013, 12:00am PST
The authors consider wireless (physical-layer) network coding 2-way relaying where both terminals use constellations curved from a common lattice structure and the relay node decodes modulo-sum...
Provided by Czech Technical University
-
Whitepapers
Superposition Coding for Wireless Butterfly Network With Partial Network Side-Information
February 20, 2013, 12:00am PST
Although the 2-source wireless Butterfly Network (BN) represents a natural extension of the well-known 2-Way Relay Channel (2-WRC) scenario, a direct implementation of conventional Wireless...
Provided by Czech Technical University
-
Whitepapers
Network Coded Modulation for Random Channel Class in WNC With HDF Relaying Strategy
February 20, 2013, 12:00am PST
A standard NCM (Network Coded Modulation) for WNC (Wireless Network Coding) with HDF (Hierarchical Decode & Forward) strategy requires that each node has full knowledge of the connectivity pattern...
Provided by Czech Technical University
-
White Papers
Optimal Flow Routing in Multi-Hop Sensor Networks With Real-Time Constraints Through Linear Programming
July 18, 2007, 12:00am PDT
The authors have proposed an algorithm for optimal real-time routing in multi-hop communication networks for multisource/ multi-sink connection. The algorithm deals with various capacity...
Provided by Czech Technical University
-
White Papers
ITEM - Implementation of Integrated TDMA and E-ASAP Module
May 29, 2008, 12:00am PDT
The authors present a new implementation of TDMA communication protocol for wireless sensor networks. The ITEM (Integrated TDMA E-ASAP Module) is a TinyOS 1.x module primarily determined for...
Provided by Czech Technical University
-
White Papers
Experiments for Real-Time Communication Contracts in IEEE 802.11e EDCA Networks
April 6, 2008, 12:00am PDT
In this paper, the authors describe basic experiments measuring communication delays in IEEE 802.11e EDCA networks. Based on results of these experiments they have designed a simple utilization...
Provided by Czech Technical University
-
White Papers
Profinet IO IRT Message Scheduling
April 15, 2009, 12:00am PDT
This paper presents an algorithm that allows one to create a static schedule of the Profinet IO IRT communication, which is an industrial Ethernet protocol standardised in IEC 61158. This...
Provided by Czech Technical University
-
White Papers
A Comparison of Linux CAN Drivers and Their Applications
June 10, 2010, 12:00am PDT
The aim of this paper is to introduce LinCAN, a CAN driver system for Linux, developed at the Department of Control Engineering of the Czech Technical University in Prague, and to provide a...
Provided by Czech Technical University
-
White Papers
Distributed Algorithm for Energy Optimal Multi-Commodity Network Flow Routing in Sensor Networks
August 16, 2010, 12:00am PDT
This paper proposes a distributed algorithm for the energy optimal routing in wireless sensor network. The routing problem is described as a minimum-cost multi-commodity network flow problem by...
Provided by Czech Technical University
-
White Papers
Simulation Study of Energy Efficient Scheduling for IEEE 802.15.4/ZigBee Cluster-TreeWireless Sensor Networks With Time-Bounded Data Flows
June 30, 2010, 12:00am PDT
The simulation analysis is important approach to developing and evaluating the systems in terms of development time and cost. This paper demonstrates the application of Time Division Cluster...
Provided by Czech Technical University
-
White Papers
A Simulation Model for the IEEE 802.15.4 Protocol: Delay/Throughput Evaluation of the GTS Mechanism
August 9, 2007, 12:00am PDT
The IEEE 802.15.4 protocol has the ability to support time-sensitive Wireless Sensor Network (WSN) applications due to the Guaranteed Time Slot (GTS) Medium Access Control mechanism. Recently,...
Provided by Czech Technical University
-
White Papers
Adaptive Wireless Multipath Access Solution for Transport Telematics
March 8, 2011, 12:00am PST
Intelligent Transportation Systems solutions require availability of the selectable range of wireless telecommunications services with guaranteed coverage and service quality. Even though...
Provided by Czech Technical University
-
White Papers
Adaptive Wireless Access Environment in Transport Solutions
January 7, 2009, 12:00am PST
This paper presents new attitude to adaptive control of the multi-path and multi-technology technology wireless access communications solutions. Presented approach is response on transport...
Provided by Czech Technical University
-
White Papers
Karhunen-Lo'eve-Based Reduced-Complexity Representation of theMixed-DensityMessages in SPA on Factor Graph and Its Impact on BER
December 30, 2010, 12:00am PST
The Sum Product Algorithm on Factor Graphs (FG/SPA) is a widely used tool to solve various problems in a wide area of fields. A representation of generally-shaped continuously valued messages in...
Provided by Czech Technical University
-
White Papers
Hierarchical Alphabet and Parametric Channel Constrained Capacity Regions for HDF Strategy in Parametric Wireless 2-WRC
January 3, 2010, 12:00am PST
The paper addresses wireless the 2-Way Relay Channel (2-WRC) system with a Hierarchical Decode and Forward strategy. This strategy uses a Hierarchical eXclusive Code (HXC) that allows full...
Provided by Czech Technical University
-
White Papers
Network Coded Modulation with Partial Side-Information and Hierarchical Decode and Forward Relay Sharing in Multi-Source Wireless Network
February 18, 2010, 12:00am PST
The authors present a strategy for the relay sharing in the 2-source relay wireless network with the hierarchical decode and forward relaying. It processes both incoming coded symbols through the...
Provided by Czech Technical University
-
White Papers
Determinant Criterion Optimizing Linear Subspace Projector for Burst Orthogonal STC CPM Modulation in MIMO Channel
January 21, 2009, 12:00am PST
The authors consider a general burst block orthogonal space-time coded CPM modulation in MIMO slowly fading Rayleigh channel. The modulated signal has multidimensional constellation waveforms. The...
Provided by Czech Technical University
-
White Papers
Mobile System for Video Streaming of Lectures
September 7, 2007, 12:00am PDT
The purpose of this paper is to introduce a mobile technical solution for IP video streaming that is usable for live broadcasts of lectures over the IP-based networks. The main unit has to be...
Provided by Czech Technical University
-
White Papers
Subtree Matching by Deterministic Pushdown Automata
October 30, 2009, 12:00am PDT
Subtree matching is an important problem in Computer Science on which a number of tasks, such as mechanical theorem proving, term-rewriting, symbolic computation and non-procedural programming...
Provided by Czech Technical University
-
White Papers
WiMAX Throughput Evaluation of Conventional Relaying
January 28, 2008, 12:00am PST
The paper analyses performance of IEEE 802.16 standard, also known as WiMAX, when relay stations are introduced. Thanks to this feature, coverage area and throughput of the system may be...
Provided by Czech Technical University
-
Whitepapers
Network Coded Modulation for Random Channel Class in WNC With HDF Relaying Strategy
February 20, 2013, 12:00am PST
A standard NCM (Network Coded Modulation) for WNC (Wireless Network Coding) with HDF (Hierarchical Decode & Forward) strategy requires that each node has full knowledge of the connectivity pattern...
Provided by Czech Technical University
-
Whitepapers
Superposition Coding for Wireless Butterfly Network With Partial Network Side-Information
February 20, 2013, 12:00am PST
Although the 2-source wireless Butterfly Network (BN) represents a natural extension of the well-known 2-Way Relay Channel (2-WRC) scenario, a direct implementation of conventional Wireless...
Provided by Czech Technical University
-
Whitepapers
On Indexing of Lattice-Constellations for Wireless Network Coding With Modulo-Sum Decoding
January 29, 2013, 12:00am PST
The authors consider wireless (physical-layer) network coding 2-way relaying where both terminals use constellations curved from a common lattice structure and the relay node decodes modulo-sum...
Provided by Czech Technical University
-
Whitepapers
Identification of Communication Solution Designated for Transport Telematic Applications
February 1, 2008, 12:00am PST
Communications solution represents one of the key parts of the Intelligent Transport System (ITS). Goal of the authors' paper is to improve over-ground traffic efficiency and security,...
Provided by Czech Technical University
-
Whitepapers
Communication and Powering Scheme for Wireless and Battery-Less Measurement
April 1, 2012, 12:00am PDT
The paper presents solution for wireless and battery-less measurement in the enclosed areas. The principle is based on passive RFID; nevertheless this paper is focused on high power-demanding...
Provided by Czech Technical University
-
Whitepapers
Systematic Design of Hierarchical Network Code Mapper for Butterfly Network Relaying
April 20, 2012, 12:00am PDT
A majority of the research results on Wireless Network Coding (WNC) considers only a basic 2-Way Relay Channel (2-WRC) system scenario, where the Complementary Side Information (C-SI) is naturally...
Provided by Czech Technical University
-
Whitepapers
Initialization Procedure of Wireless Network Coding With Hierarchical Decode & Forward Strategy in Random Connectivity Networks
August 28, 2012, 12:00am PDT
A Wireless Network Coding (WNC) a.k.a. a Physical Layer Network Coding in multi-source multi-node scenarios has shown its potential to increase network throughput compared to a communication based...
Provided by Czech Technical University
-
White Papers
Subtree Matching by Deterministic Pushdown Automata
October 30, 2009, 12:00am PDT
Subtree matching is an important problem in Computer Science on which a number of tasks, such as mechanical theorem proving, term-rewriting, symbolic computation and non-procedural programming...
Provided by Czech Technical University
-
White Papers
Determinant Criterion Optimizing Linear Subspace Projector for Burst Orthogonal STC CPM Modulation in MIMO Channel
January 21, 2009, 12:00am PST
The authors consider a general burst block orthogonal space-time coded CPM modulation in MIMO slowly fading Rayleigh channel. The modulated signal has multidimensional constellation waveforms. The...
Provided by Czech Technical University
-
White Papers
Network Coded Modulation with Partial Side-Information and Hierarchical Decode and Forward Relay Sharing in Multi-Source Wireless Network
February 18, 2010, 12:00am PST
The authors present a strategy for the relay sharing in the 2-source relay wireless network with the hierarchical decode and forward relaying. It processes both incoming coded symbols through the...
Provided by Czech Technical University
-
White Papers
Hierarchical Alphabet and Parametric Channel Constrained Capacity Regions for HDF Strategy in Parametric Wireless 2-WRC
January 3, 2010, 12:00am PST
The paper addresses wireless the 2-Way Relay Channel (2-WRC) system with a Hierarchical Decode and Forward strategy. This strategy uses a Hierarchical eXclusive Code (HXC) that allows full...
Provided by Czech Technical University
-
White Papers
Karhunen-Lo'eve-Based Reduced-Complexity Representation of theMixed-DensityMessages in SPA on Factor Graph and Its Impact on BER
December 30, 2010, 12:00am PST
The Sum Product Algorithm on Factor Graphs (FG/SPA) is a widely used tool to solve various problems in a wide area of fields. A representation of generally-shaped continuously valued messages in...
Provided by Czech Technical University
-
White Papers
Adaptive Wireless Access Environment in Transport Solutions
January 7, 2009, 12:00am PST
This paper presents new attitude to adaptive control of the multi-path and multi-technology technology wireless access communications solutions. Presented approach is response on transport...
Provided by Czech Technical University
-
White Papers
Adaptive Wireless Multipath Access Solution for Transport Telematics
March 8, 2011, 12:00am PST
Intelligent Transportation Systems solutions require availability of the selectable range of wireless telecommunications services with guaranteed coverage and service quality. Even though...
Provided by Czech Technical University
-
White Papers
A Simulation Model for the IEEE 802.15.4 Protocol: Delay/Throughput Evaluation of the GTS Mechanism
August 9, 2007, 12:00am PDT
The IEEE 802.15.4 protocol has the ability to support time-sensitive Wireless Sensor Network (WSN) applications due to the Guaranteed Time Slot (GTS) Medium Access Control mechanism. Recently,...
Provided by Czech Technical University
-
White Papers
Simulation Study of Energy Efficient Scheduling for IEEE 802.15.4/ZigBee Cluster-TreeWireless Sensor Networks With Time-Bounded Data Flows
June 30, 2010, 12:00am PDT
The simulation analysis is important approach to developing and evaluating the systems in terms of development time and cost. This paper demonstrates the application of Time Division Cluster...
Provided by Czech Technical University
-
White Papers
Distributed Algorithm for Energy Optimal Multi-Commodity Network Flow Routing in Sensor Networks
August 16, 2010, 12:00am PDT
This paper proposes a distributed algorithm for the energy optimal routing in wireless sensor network. The routing problem is described as a minimum-cost multi-commodity network flow problem by...
Provided by Czech Technical University
-
White Papers
A Comparison of Linux CAN Drivers and Their Applications
June 10, 2010, 12:00am PDT
The aim of this paper is to introduce LinCAN, a CAN driver system for Linux, developed at the Department of Control Engineering of the Czech Technical University in Prague, and to provide a...
Provided by Czech Technical University
-
White Papers
Profinet IO IRT Message Scheduling
April 15, 2009, 12:00am PDT
This paper presents an algorithm that allows one to create a static schedule of the Profinet IO IRT communication, which is an industrial Ethernet protocol standardised in IEC 61158. This...
Provided by Czech Technical University
-
White Papers
Experiments for Real-Time Communication Contracts in IEEE 802.11e EDCA Networks
April 6, 2008, 12:00am PDT
In this paper, the authors describe basic experiments measuring communication delays in IEEE 802.11e EDCA networks. Based on results of these experiments they have designed a simple utilization...
Provided by Czech Technical University
-
White Papers
ITEM - Implementation of Integrated TDMA and E-ASAP Module
May 29, 2008, 12:00am PDT
The authors present a new implementation of TDMA communication protocol for wireless sensor networks. The ITEM (Integrated TDMA E-ASAP Module) is a TinyOS 1.x module primarily determined for...
Provided by Czech Technical University
-
White Papers
Optimal Flow Routing in Multi-Hop Sensor Networks With Real-Time Constraints Through Linear Programming
July 18, 2007, 12:00am PDT
The authors have proposed an algorithm for optimal real-time routing in multi-hop communication networks for multisource/ multi-sink connection. The algorithm deals with various capacity...
Provided by Czech Technical University
-
White Papers
Performance Optimization for Enterprise Web Applications Through Remote Client Simulation
June 15, 2010, 12:00am PDT
Contemporary enterprise web applications provide complex user interface functionality to attract users with desktop-like features. Naturally, such increasing UI complexity and user expectation...
Provided by Czech Technical University
-
White Papers
Evaluation and Optimization of Web Application Performance Under Varying Network Conditions
March 23, 2010, 12:00am PDT
System performance testing measures application responsiveness for end users and aids in identifying bottlenecks in service delivery. For web applications, performance is typically reported in...
Provided by Czech Technical University
-
White Papers
A Tool for Evaluation and Optimization of Web Application Performance
March 23, 2010, 12:00am PDT
One of the main goals of web application developers is to design fast systems that can respond to users in short time. Fast systems response increases user satisfaction. Although this fact is well...
Provided by Czech Technical University
-
White Papers
Visualisation Techniques Connecting VRML and GENESIS Environments
June 9, 2009, 12:00am PDT
The authors created the tool, which combines the powerful GENESIS (GEneral NEural SImulation System) simulation language with the up-to-date visualisation and internet techniques. The solution...
Provided by Czech Technical University
-
White Papers
A Comparison of XML-Based Temporal Models
August 16, 2007, 12:00am PDT
Much research work has recently focused on the problem of representing historical information in XML. This paper describes a number of temporal XML data models and provides their comparison...
Provided by Czech Technical University
-
White Papers
Routing Protocol for Mobile Ad-hoc Wireless Networks
September 1, 2007, 12:00am PDT
Bluetooth is a cutting-edge technology used for implementing wireless ad-hoc networks. In order to provide an overall scheme for mobile ad-hoc networks, this paper deals with scatternet topology...
Provided by Czech Technical University
-
White Papers
Initialization of Handover Procedure in WiMAX Networks
April 1, 2009, 12:00am PDT
This paper introduces a new approach in the triggering of handover procedure in WiMAX networks. Mobile WiMAX, based on the IEEE 802.16e standard, supports a several types of handovers and allows...
Provided by Czech Technical University
-
White Papers
WiMAX Throughput Evaluation of Conventional Relaying
January 28, 2008, 12:00am PST
The paper analyses performance of IEEE 802.16 standard, also known as WiMAX, when relay stations are introduced. Thanks to this feature, coverage area and throughput of the system may be...
Provided by Czech Technical University
-
White Papers
Mobile System for Video Streaming of Lectures
September 7, 2007, 12:00am PDT
The purpose of this paper is to introduce a mobile technical solution for IP video streaming that is usable for live broadcasts of lectures over the IP-based networks. The main unit has to be...
Provided by Czech Technical University
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