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Brno University of Technology
(38 results)-
White Papers
One Source Multicast Model Using RTP in NS2
November 1, 2007, 12:00am PDT
The simulation models in general are irreplaceable tools for testing and validating of the present or the proposed algorithms. This paper deals with the design of the multicast model with the one...
Provided by Brno University of Technology
-
White Papers
Data Gathering Model for Wireless Sensor Networks Based on the Hierarchical Aggregation Algorithms for IP Networks
December 3, 2008, 12:00am PST
This paper deals with the data gathering in the sessions with the large number of end nodes. This situation can be represented by the networks with the IPTV service or by the monitoring process in...
Provided by Brno University of Technology
-
White Papers
Connectivity in a Wireless Sensor Network
January 2, 2009, 12:00am PST
This paper describes the issue of full connection probability and network efficiency using a minimum number of nodes in wireless sensor networks is addressed. It investigates the network...
Provided by Brno University of Technology
-
White Papers
Threat Analysis Based on the Graph of Elementary Threats
January 2, 2009, 12:00am PST
At present, an analysis based on the threat tree is used for analysis of threats to information systems. Orientation to a single threat is a characteristic feature of this method. If the analysis...
Provided by Brno University of Technology
-
White Papers
Implementation of TCP/IP Stack for 3L Diamond Operating System
December 15, 2009, 12:00am PST
This paper deals with implementation of TCP/IP stack for 3L Diamond operating system. After short introduction to multiprocessor operating system 3L Diamond, main implementation issues are...
Provided by Brno University of Technology
-
White Papers
New Channel Coding Methods for Satellite Communication
April 1, 2010, 12:00am PDT
This paper deals with the new progressive channel coding methods for short message transmission via satellite transponder using predetermined length of frame. The key benefits of this contribution...
Provided by Brno University of Technology
-
White Papers
Satellite Free Space Optics Test Generator
April 8, 2009, 12:00am PDT
Free Space Optics (FSO) is relatively a new type of communication. Laser beam as a data carrier is propagated from a source to a target without any extra transmission medium. The transmission...
Provided by Brno University of Technology
-
White Papers
Developing an Interdisciplinary and Multinational Software Engineering Curriculum
June 25, 2007, 12:00am PDT
The European Commission and the US Department of Education have funded ATLANTIS initiative to promote collaboration in the higher education between European and American universities. In this...
Provided by Brno University of Technology
-
White Papers
Customer Services and Their Role for Industrial Small and Medium Companies
April 16, 2009, 12:00am PDT
The aim of this paper is to present the problems of customer services and their important role for small and medium companies from the theoretical view. Customer services are kind of services...
Provided by Brno University of Technology
-
White Papers
Designing a Novel General Sorting Network Constructor Using Artificial Evolution
June 9, 2009, 12:00am PDT
A method is presented for the construction of arbitrary even-input sorting networks exhibiting better properties than the networks created using a conventional technique of the same type. The...
Provided by Brno University of Technology
-
White Papers
Confidence Estimation, Oov Detection and Language Id Using Phone-to-Word Transduction and Phone-Level Alignments
October 5, 2007, 12:00am PDT
Automatic Speech Recognition (ASR) systems continue to make errors during search when handling various phenomena including noise, pronunciation variation, and Out Of Vocabulary (OOV) words....
Provided by Brno University of Technology
-
White Papers
Risk Management And Soft Computing
December 18, 2009, 12:00am PST
Risk management is a sphere that covers wide scale of techniques that are used in many branches. This branch has started to develop since the 21 century namely for the purpose to improve the risk...
Provided by Brno University of Technology
-
White Papers
Modification of the OCFB Mode for Fast Data Links
December 1, 2007, 12:00am PST
In some communication systems, some of the transmitted symbols are lost or, on the contrary, repeated. Lost or repeated symbols are called slips. In the case of cipher transmission, these slips...
Provided by Brno University of Technology
-
White Papers
Transmitting Hierarchical Aggregation Information Using RTCP Protocol
November 1, 2007, 12:00am PDT
The current state of the RFC 3550 RTP/RTCP standard is not optimal for large-scale streaming sessions employing source-specific multicast and is currently the subject of research in many research...
Provided by Brno University of Technology
-
White Papers
Resynchronization Interval of Self-Synchronizing Modes of Block Ciphers
October 1, 2007, 12:00am PDT
In some communication systems, some of the transmitted bits or bit groups are lost or, on the contrary, repeated. Lost or repeated bits or bit groups are called slips. In the case of cipher...
Provided by Brno University of Technology
-
White Papers
New Analytical Model of Distributed Coordination Function
December 1, 2008, 12:00am PST
Wireless access networks of various types are the most frequently used technologies in the last mile solution i.e. bringing connectivity to the customer or end user. Wireless connections are also...
Provided by Brno University of Technology
-
White Papers
Best Effort Hierarchical Aggregation Tree for IPTV Signaling
November 1, 2008, 12:00am PDT
As more and more households are connected with broadband internet connection a new type of services are emerging. One of these services is also the IPTV service. According to current research the...
Provided by Brno University of Technology
-
White Papers
Visualization of a Hierarchical Aggregation in the IPTV Network Environment
November 1, 2008, 12:00am PDT
This paper deals with IPTV (Internet Protocol TeleVision) system. It explains basic principles of multimedia transmission to wide range of user trough Internet. There is an overview of advantages...
Provided by Brno University of Technology
-
White Papers
Interference in Data Communication Over Narrow-Band PLC
November 1, 2008, 12:00am PDT
Interference in narrow-band PLC (Power Line Communication) is discussed in the paper. In power lines, interference greatly affects the attainable data rate and reliability. Communication rate was...
Provided by Brno University of Technology
-
White Papers
Enhancement in the Protection of Transmitted Data
July 1, 2008, 12:00am PDT
Nowadays and undoubtedly also in the future, modern communication technologies are marked with a tendency towards constant increase in the speed of data transmission. During such transmissions new...
Provided by Brno University of Technology
-
White Papers
Performance Evaluation of Quality of Service Assurance in MPLS Networks
November 1, 2009, 12:00am PDT
The paper introduces the main features of the mechanism of MultiProtocol Label Switching (MPLS) and evaluates the behaviour of MPLS implementation in current IP networks with respect to Quality of...
Provided by Brno University of Technology
-
White Papers
Simulation of PMD Cause in WDM Systems
November 1, 2009, 12:00am PDT
The model of signal propagation for two channel WDM system called coupled Non-Linear Schrodinger Equations (NLSE) is introduced. The authors demonstrate effect of nonlinearities and birefringence...
Provided by Brno University of Technology
-
White Papers
Implementation of Combinational and Sequential Functions in Embedded Firmware
January 1, 2008, 12:00am PST
The paper addresses firmware implementation of multiple-output combinational and sequential Boolean functions based on cascades of Look-Up Tables (LUTs). A LUT cascade is described as a means of...
Provided by Brno University of Technology
-
White Papers
Collection of Different Face Gestures and Realization of Experiments
April 1, 2009, 12:00am PDT
This paper deals with the influence of face gesticulation to the face recognition algorithms. The authors have acquired the own database with different gestures and tried to test two face...
Provided by Brno University of Technology
-
Whitepapers
Distributed Recognition of Reference Nodes for Wireless Sensor Network Localization
April 1, 2012, 12:00am PDT
All known localization techniques for wireless sensor and ad-hoc networks require certain set of reference nodes being used for position estimation. The anchor-free techniques in contrast to...
Provided by Brno University of Technology
-
Whitepapers
Performance Analysis of SSC Diversity Receiver Over Correlated Hoyt Fading Channels
April 2, 2012, 12:00am PDT
An infinite-series-based approach for the performance analysis of a dual-branch Switched-and-Stay Combining (SSC) diversity receiver operating over correlated Hoyt fading channels is presented....
Provided by Brno University of Technology
-
Whitepapers
Opportunistic Relaying in Time Division Broadcast Protocol With Incremental Relaying
April 1, 2012, 12:00am PDT
In this paper, the authors investigate the performance of Time Division BroadCast protocol (TDBC) with Incremental Relaying (IR) when there are multiple available relays. Opportunistic Relaying...
Provided by Brno University of Technology
-
Whitepapers
Analysis and Simulation of the Transmission Distortions of the Mobile Digital Television DVB-SH
March 22, 2012, 12:00am PDT
This paper deals with the second part of the latest digital TV standard DVB-SH (Digital Video Broadcasting - Satellite to Handhelds) with focus on utilization of its advantages for the next...
Provided by Brno University of Technology
-
Whitepapers
Determination of More Realistic Target 95% Values of Post Selection Delay in Modern Telephone Networks
March 22, 2012, 12:00am PDT
Besides the quality of speech signal, the telephone network response time is the main indicator of Quality of Service (QoS). The telephone network response time is expressed by the time needed for...
Provided by Brno University of Technology
-
Whitepapers
Variance Based OFDM Frame Synchronization
March 22, 2012, 12:00am PDT
The paper deals with a new frame synchronization scheme for OFDM systems and calculates the complexity of this scheme. The scheme is based on computing of the detection window variance. The...
Provided by Brno University of Technology
-
Whitepapers
Integration of Real Network Components Into OPNET Modeler Co-Simulation Process
September 1, 2010, 12:00am PDT
The OPNET Modeler is a simulation environment enables modeling of large-scale networks with in detail defined parameters. This paper is focused on the possibility to communicate with external...
Provided by Brno University of Technology
-
Whitepapers
Services for Advanced Communication Networks
October 1, 2010, 12:00am PDT
Services for advanced communication networks are described in this paper. An artificial neural network will be used for the control of network elements, in the authors' case a switch. Classical...
Provided by Brno University of Technology
-
Whitepapers
Design and Analysis of New Digital Modulation Classification Method
July 1, 2009, 12:00am PDT
In connection with the requirement for faster and more reliable communication, the digital processing methods and digital communications are mainly used. In this paper, a new method of digital...
Provided by Brno University of Technology
-
Whitepapers
Algorithms of Digital Modulation Classification and Their Verification
September 1, 2010, 12:00am PDT
Two methods of the classification of digital modulations ASK, FSK2, FSK4, MSK, BPSK, QPSK, 8PSK and QAM-16 are presented. The first algorithm is based on module and phase spectrogram analysis....
Provided by Brno University of Technology
-
Whitepapers
Mac Protocols in Mobile Ad Hoc Networks
July 17, 2012, 12:00am PDT
Mobile Ad hoc NETwork (MANET) is a wireless network of mobile nodes connected by wireless link without a central control. The Medium Access Control (MAC) protocol is one of the important issues in...
Provided by Brno University of Technology
-
White Papers
Design of a Retargetable Decompiler for a Static Platform-Independent Malware Analysis
October 1, 2011, 12:00am PDT
Together with the massive expansion of smartphones, tablets, and other smart devices, the authors can notice a growing number of malware threats targeting these platforms. Software security...
Provided by Brno University of Technology
-
White Papers
Visual Features for Multimodal Speech Recognition
January 1, 2008, 12:00am PST
Information from the speaker's mouth region has been shown to improve the accuracy and noise robustness of Automatic Speech Recognition (ASR) systems. However, state-of-the-art systems use...
Provided by Brno University of Technology
-
White Papers
Multicast Routing in Wireless Sensor Networks
August 15, 2008, 12:00am PDT
This paper deals with the state of the nowadays research of the multicast routing protocols for wireless sensor networks. They describe how to establish efficient multicast tree for wireless...
Provided by Brno University of Technology
-
Whitepapers
Mac Protocols in Mobile Ad Hoc Networks
July 17, 2012, 12:00am PDT
Mobile Ad hoc NETwork (MANET) is a wireless network of mobile nodes connected by wireless link without a central control. The Medium Access Control (MAC) protocol is one of the important issues in...
Provided by Brno University of Technology
-
Whitepapers
Algorithms of Digital Modulation Classification and Their Verification
September 1, 2010, 12:00am PDT
Two methods of the classification of digital modulations ASK, FSK2, FSK4, MSK, BPSK, QPSK, 8PSK and QAM-16 are presented. The first algorithm is based on module and phase spectrogram analysis....
Provided by Brno University of Technology
-
Whitepapers
Design and Analysis of New Digital Modulation Classification Method
July 1, 2009, 12:00am PDT
In connection with the requirement for faster and more reliable communication, the digital processing methods and digital communications are mainly used. In this paper, a new method of digital...
Provided by Brno University of Technology
-
Whitepapers
Services for Advanced Communication Networks
October 1, 2010, 12:00am PDT
Services for advanced communication networks are described in this paper. An artificial neural network will be used for the control of network elements, in the authors' case a switch. Classical...
Provided by Brno University of Technology
-
Whitepapers
Integration of Real Network Components Into OPNET Modeler Co-Simulation Process
September 1, 2010, 12:00am PDT
The OPNET Modeler is a simulation environment enables modeling of large-scale networks with in detail defined parameters. This paper is focused on the possibility to communicate with external...
Provided by Brno University of Technology
-
Whitepapers
Variance Based OFDM Frame Synchronization
March 22, 2012, 12:00am PDT
The paper deals with a new frame synchronization scheme for OFDM systems and calculates the complexity of this scheme. The scheme is based on computing of the detection window variance. The...
Provided by Brno University of Technology
-
Whitepapers
Determination of More Realistic Target 95% Values of Post Selection Delay in Modern Telephone Networks
March 22, 2012, 12:00am PDT
Besides the quality of speech signal, the telephone network response time is the main indicator of Quality of Service (QoS). The telephone network response time is expressed by the time needed for...
Provided by Brno University of Technology
-
Whitepapers
Analysis and Simulation of the Transmission Distortions of the Mobile Digital Television DVB-SH
March 22, 2012, 12:00am PDT
This paper deals with the second part of the latest digital TV standard DVB-SH (Digital Video Broadcasting - Satellite to Handhelds) with focus on utilization of its advantages for the next...
Provided by Brno University of Technology
-
Whitepapers
Opportunistic Relaying in Time Division Broadcast Protocol With Incremental Relaying
April 1, 2012, 12:00am PDT
In this paper, the authors investigate the performance of Time Division BroadCast protocol (TDBC) with Incremental Relaying (IR) when there are multiple available relays. Opportunistic Relaying...
Provided by Brno University of Technology
-
Whitepapers
Performance Analysis of SSC Diversity Receiver Over Correlated Hoyt Fading Channels
April 2, 2012, 12:00am PDT
An infinite-series-based approach for the performance analysis of a dual-branch Switched-and-Stay Combining (SSC) diversity receiver operating over correlated Hoyt fading channels is presented....
Provided by Brno University of Technology
-
Whitepapers
Distributed Recognition of Reference Nodes for Wireless Sensor Network Localization
April 1, 2012, 12:00am PDT
All known localization techniques for wireless sensor and ad-hoc networks require certain set of reference nodes being used for position estimation. The anchor-free techniques in contrast to...
Provided by Brno University of Technology
-
White Papers
Design of a Retargetable Decompiler for a Static Platform-Independent Malware Analysis
October 1, 2011, 12:00am PDT
Together with the massive expansion of smartphones, tablets, and other smart devices, the authors can notice a growing number of malware threats targeting these platforms. Software security...
Provided by Brno University of Technology
-
White Papers
Collection of Different Face Gestures and Realization of Experiments
April 1, 2009, 12:00am PDT
This paper deals with the influence of face gesticulation to the face recognition algorithms. The authors have acquired the own database with different gestures and tried to test two face...
Provided by Brno University of Technology
-
White Papers
Implementation of Combinational and Sequential Functions in Embedded Firmware
January 1, 2008, 12:00am PST
The paper addresses firmware implementation of multiple-output combinational and sequential Boolean functions based on cascades of Look-Up Tables (LUTs). A LUT cascade is described as a means of...
Provided by Brno University of Technology
-
White Papers
Simulation of PMD Cause in WDM Systems
November 1, 2009, 12:00am PDT
The model of signal propagation for two channel WDM system called coupled Non-Linear Schrodinger Equations (NLSE) is introduced. The authors demonstrate effect of nonlinearities and birefringence...
Provided by Brno University of Technology
-
White Papers
Performance Evaluation of Quality of Service Assurance in MPLS Networks
November 1, 2009, 12:00am PDT
The paper introduces the main features of the mechanism of MultiProtocol Label Switching (MPLS) and evaluates the behaviour of MPLS implementation in current IP networks with respect to Quality of...
Provided by Brno University of Technology
-
White Papers
Enhancement in the Protection of Transmitted Data
July 1, 2008, 12:00am PDT
Nowadays and undoubtedly also in the future, modern communication technologies are marked with a tendency towards constant increase in the speed of data transmission. During such transmissions new...
Provided by Brno University of Technology
-
White Papers
Interference in Data Communication Over Narrow-Band PLC
November 1, 2008, 12:00am PDT
Interference in narrow-band PLC (Power Line Communication) is discussed in the paper. In power lines, interference greatly affects the attainable data rate and reliability. Communication rate was...
Provided by Brno University of Technology
-
White Papers
Visualization of a Hierarchical Aggregation in the IPTV Network Environment
November 1, 2008, 12:00am PDT
This paper deals with IPTV (Internet Protocol TeleVision) system. It explains basic principles of multimedia transmission to wide range of user trough Internet. There is an overview of advantages...
Provided by Brno University of Technology
-
White Papers
Best Effort Hierarchical Aggregation Tree for IPTV Signaling
November 1, 2008, 12:00am PDT
As more and more households are connected with broadband internet connection a new type of services are emerging. One of these services is also the IPTV service. According to current research the...
Provided by Brno University of Technology
-
White Papers
New Analytical Model of Distributed Coordination Function
December 1, 2008, 12:00am PST
Wireless access networks of various types are the most frequently used technologies in the last mile solution i.e. bringing connectivity to the customer or end user. Wireless connections are also...
Provided by Brno University of Technology
-
White Papers
Resynchronization Interval of Self-Synchronizing Modes of Block Ciphers
October 1, 2007, 12:00am PDT
In some communication systems, some of the transmitted bits or bit groups are lost or, on the contrary, repeated. Lost or repeated bits or bit groups are called slips. In the case of cipher...
Provided by Brno University of Technology
-
White Papers
Transmitting Hierarchical Aggregation Information Using RTCP Protocol
November 1, 2007, 12:00am PDT
The current state of the RFC 3550 RTP/RTCP standard is not optimal for large-scale streaming sessions employing source-specific multicast and is currently the subject of research in many research...
Provided by Brno University of Technology
-
White Papers
Modification of the OCFB Mode for Fast Data Links
December 1, 2007, 12:00am PST
In some communication systems, some of the transmitted symbols are lost or, on the contrary, repeated. Lost or repeated symbols are called slips. In the case of cipher transmission, these slips...
Provided by Brno University of Technology
-
White Papers
One Source Multicast Model Using RTP in NS2
November 1, 2007, 12:00am PDT
The simulation models in general are irreplaceable tools for testing and validating of the present or the proposed algorithms. This paper deals with the design of the multicast model with the one...
Provided by Brno University of Technology
-
White Papers
Risk Management And Soft Computing
December 18, 2009, 12:00am PST
Risk management is a sphere that covers wide scale of techniques that are used in many branches. This branch has started to develop since the 21 century namely for the purpose to improve the risk...
Provided by Brno University of Technology
-
White Papers
Confidence Estimation, Oov Detection and Language Id Using Phone-to-Word Transduction and Phone-Level Alignments
October 5, 2007, 12:00am PDT
Automatic Speech Recognition (ASR) systems continue to make errors during search when handling various phenomena including noise, pronunciation variation, and Out Of Vocabulary (OOV) words....
Provided by Brno University of Technology
-
White Papers
Designing a Novel General Sorting Network Constructor Using Artificial Evolution
June 9, 2009, 12:00am PDT
A method is presented for the construction of arbitrary even-input sorting networks exhibiting better properties than the networks created using a conventional technique of the same type. The...
Provided by Brno University of Technology
-
White Papers
Customer Services and Their Role for Industrial Small and Medium Companies
April 16, 2009, 12:00am PDT
The aim of this paper is to present the problems of customer services and their important role for small and medium companies from the theoretical view. Customer services are kind of services...
Provided by Brno University of Technology
-
White Papers
Developing an Interdisciplinary and Multinational Software Engineering Curriculum
June 25, 2007, 12:00am PDT
The European Commission and the US Department of Education have funded ATLANTIS initiative to promote collaboration in the higher education between European and American universities. In this...
Provided by Brno University of Technology
-
White Papers
Satellite Free Space Optics Test Generator
April 8, 2009, 12:00am PDT
Free Space Optics (FSO) is relatively a new type of communication. Laser beam as a data carrier is propagated from a source to a target without any extra transmission medium. The transmission...
Provided by Brno University of Technology
-
White Papers
New Channel Coding Methods for Satellite Communication
April 1, 2010, 12:00am PDT
This paper deals with the new progressive channel coding methods for short message transmission via satellite transponder using predetermined length of frame. The key benefits of this contribution...
Provided by Brno University of Technology
-
White Papers
Implementation of TCP/IP Stack for 3L Diamond Operating System
December 15, 2009, 12:00am PST
This paper deals with implementation of TCP/IP stack for 3L Diamond operating system. After short introduction to multiprocessor operating system 3L Diamond, main implementation issues are...
Provided by Brno University of Technology
-
White Papers
Threat Analysis Based on the Graph of Elementary Threats
January 2, 2009, 12:00am PST
At present, an analysis based on the threat tree is used for analysis of threats to information systems. Orientation to a single threat is a characteristic feature of this method. If the analysis...
Provided by Brno University of Technology
-
White Papers
Connectivity in a Wireless Sensor Network
January 2, 2009, 12:00am PST
This paper describes the issue of full connection probability and network efficiency using a minimum number of nodes in wireless sensor networks is addressed. It investigates the network...
Provided by Brno University of Technology
-
White Papers
Data Gathering Model for Wireless Sensor Networks Based on the Hierarchical Aggregation Algorithms for IP Networks
December 3, 2008, 12:00am PST
This paper deals with the data gathering in the sessions with the large number of end nodes. This situation can be represented by the networks with the IPTV service or by the monitoring process in...
Provided by Brno University of Technology
-
White Papers
Multicast Routing in Wireless Sensor Networks
August 15, 2008, 12:00am PDT
This paper deals with the state of the nowadays research of the multicast routing protocols for wireless sensor networks. They describe how to establish efficient multicast tree for wireless...
Provided by Brno University of Technology
-
White Papers
Visual Features for Multimodal Speech Recognition
January 1, 2008, 12:00am PST
Information from the speaker's mouth region has been shown to improve the accuracy and noise robustness of Automatic Speech Recognition (ASR) systems. However, state-of-the-art systems use...
Provided by Brno University of Technology
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