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Use of reliable multicast for feedback transmission in IPTV
Sobotka, David ; Novotný, Vít (referee) ; Komosný, Dan (advisor)
This Diploma thesis is focused on a part of network communication in the system of IPTV using the protocol to provide transmission of real-time multimedia RTP, specifically using the control protocol RTCP to carry voting results. The thesis further shows variants and ways of using reliable multicast and specific multicast (SSM). The main practical goal of this thesis is the program for the simulation of carrying voting results that I have created in the C++ programming language for MS Windows platform. The result is the client program receiving an inquiry from the server and reacting by application packets of the RTCP protocol. On the other side is the server program that picks up the packets and processes them. The programs run in the console mode, thus they have no graphical user interface. A user in the server program can create any inquiry and consequently send it to the client. Furthermore, the server can possibly view the current results of voting. In the client program a user can vote and possibly send another vote that will simulate other clients.
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Secure peer-to-peer communication system
Eliáš, Luboš ; Koutný, Martin (referee) ; Cvrk, Lubomír (advisor)
The main aim of this master's thesis is to implement a common, secure and peer-to-peer communication system. The system has ability to automatically establish and run a secure end-to-end connection. It has this ability even if a network address translator is in the way to the destination system, without need of any explicit configuration of this translator. The security procedures of this system are in a transparent manner masked from individual applications, which had to solve this challenge in their own way. A responsibility for a security is delegate to an application-independent subsystem working within the core of an operating system. The security of this subsystem is based on capturing the outbound and inbound IP packets and their authentication and encryption. The system was successfully implemented in MS Windows XP operating system, in programming language C++. Transfer rate of communication tunnel in different network bandwidth speeds was measured. Result shows, that in the case of use the system on standard PC sold nowadays is practically no decrease of the transfer rate in comparison to a common channel.
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Robot Path Planning (RRT)
Knispel, Lukáš ; Matoušek, Radomil (advisor)
This thesis deals with path plannig of omnidirectional mobile robot using the RRT algorithm (Rapidly-exploring Random Tree). Theoretical part also describes basic algorithms of path planning and presents closer view on RRT and its potential. Practical part deals with designing and creation of C++ linux application in Ubuntu 9.10 environment with Qt 4.6 application framework, which implements advanced RRT algorithm with user-programmable solver and batch mode in order to test efectivity of solver on given tasks.
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Tvorba aplikace pro rekonstrukci povrchu z mračna bodů
Jandora, Filip
This bachelor thesis is dedicated to the surface reconstruction from a point cloud. With this application it is possible to smooth out and reconstruct loaded point cloud and then use it as an object. Application is based on the C ++ programming language supported by Qt and PCL libraries.
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Převod vybraných algoritmů data-mining z jazyka Java do binární (.exe) formy
Šrom, Jakub
There are many successful systems for data-mining (eg. WEKA, RapidMiner, etc.), which currently hold many algorithms implemented in Java, which allows their use under different operating systems. The disadvantage of the interpreted source code is a slowdown in the calculation and limited memory usage. The thesis is focused on the transfer of several selected implementations of algorithms in Java binaries (.exe) through the conversion of source code in C ++ under MS Windows 7 64-bit. The aim is to speed up calculations and improve management of memory usage. Binary form must give identical results as the original form. In addition to the actual transfer, the thesis also includes comparing time and memory requirements of the original (using the Java Runtime Environment, JRE) interpreted implementation in Java (JRE 64-bit) and x64 resulting binary forms, for selected test data.
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