National Repository of Grey Literature 16 records found  1 - 10next  jump to record: Search took 0.01 seconds. 
Design, realization and simulation of network protocols in NS2
Zvolenský, Daniel ; Šimek, Milan (referee) ; Koutný, Martin (advisor)
The aim of this work is to become familiar with simulation environment Network Simulator 2, study the problems of sensor networks and their support in the simulator and implement the selected protocol and verify its funcitonality in a practical simulation.
Simulation scenarios in NS2 demonstrating knowledge obtained in the MPKT course
Mašek, Jan ; Mlýnek, Petr (referee) ; Jeřábek, Jan (advisor)
The aim of the bachelor´s thesis is to develop simulation tasks for modeling of data networks. The tasks will be used in the course Modern communication technique (MKPT). The networks are simulated in the environment of Network Simulator 2 (NS2). A brief description of program environment NS2, as well as basics of Tcl language is mentioned in the introduction. Described is the possibility of simulation HTTP protocol in NS2 using OTcl PagePool classes. Totally six proposed tasks form the core of the thesis. The first task uses PagePool/Math and displays the simplest communication between client, server and cache. Next task uses PagePool/CompMath and it shows the communication between client, cache, Web server, FTP server and FTP client. The task, that uses PagePool/WebTraf class, simulates communication between two clients and three servers. The last three tasks are of different topologies and course of communication using PagePool/ProxyTrace. The exercises of this class are the most complicated and their input files allow defining whole communication. The outputs of exercises are given in graphs, log files of HTTP communication and the last task contains detailed instructions.
Design of unicast and multicast models in NS2
Votava, Martin ; Burget, Radim (referee) ; Šimek, Milan (advisor)
This work is focused on Network Simulator 2 - tool used for simulating network implementations. Focal point of this work is simulating of unicast and multicast routing. This work also describes protocols used on transport layer, such TCP (Transmission Control Protocol) and UDP (User Datagram Protocol). Last but not least work includes laboratory part in which reader is able to verify reached knowledge in Unicast and Multicast simulation.
Wireless model 802.11 in NS2
Botta, Miroslav ; Kubánková, Anna (referee) ; Šimek, Milan (advisor)
Theme of this work is simple wireless simulation Network Simulation 2 tool. The work consists of more parts. In the first section is basic theory about Wi-Fi networks, they types and standards and describes how useful can it be in practical life. In the second section there is a short annotation for programming in TCL language and possibilities of NS2 for simulating wireless networks. In the end there is a complex simulation of this network. In the third part there are two complex tasks where the information’s are drawn from the previous two parts.
QoS simulation model in NS2
Balej, Jiří ; Burda, Karel (referee) ; Šimek, Milan (advisor)
In this bachelor thesis is described fundamental principle of IPTV and all the necessary conditions for high-quality video and audio signal. In reference is the recommendation of DSL Forum TR-126, where are summarized QoS parameters for IPTV. There is the explanation of Triple play service as a combined distribution of television, telephone and high-speed Internet. In one chapter are presented methods for asssure Quality of Service (QoS). There are described the method of Integrated services and especially Differentiated services. It explains a function of edge and core routers in Differentiated services. Methods for random early detection (RED) a scheduling are described too. The aim of this thesis was to create two laboratory tasks in the Network Simulator 2. The first lab simulates VoIP traffic in data network and assure QoS for VoIP. In the second lab is a simulated the network with Triple play service and the goal is to assure the recommended parameters for IPTV. To resolve the aim of this work, was needed to study the function of Network Simulator 2 and focus on settings for Differentiated services.
Usage of NS2 simulator in multicast networks
Hošek, Petr ; Mlýnek, Petr (referee) ; Koutný, Martin (advisor)
The thesis is focused on routing in data network, especially on network method of multicast. The first section closely deals with particular multicast protocols and next with models of multicast, mainly Any Source Multicast and Source Specific Multicast. The main point of this work is implementation of multicast using Network Simulator. On the practical level, two laboratory exercises are included. In this part, readers have the possibility to make sure of reached knowledge of multicast and its implementation in NS2.
Implementation of UMTS package in NS2
Bernát, Michal ; Kovář, Petr (referee) ; Šimek, Milan (advisor)
This bachelor thesis is in the first part focused to research of actual IPTV technologies in global and mobile networks and their processing. It compares IPTV's adventages and disadventages and as well presents actual czech and world-wide offers. There are also discussed other possibilities of mobile TV spreading. Second part deals with the simulation tool NS2 (Network Simulator 2), its description, installation and implementation of extension package for UMTS network simulations. There is created and described simulation with relatively simple scenario to illustrate possibilities of this extension. All practical demonstrations and the installation source codes, which had to be corrected because of compatibility with new versions of operating systems, are now attached to the DVD.
Localization protocol for WSN with support of node mobility
Votava, Martin ; Šimek, Milan (referee) ; Holešinský, Pavel (advisor)
Work is focused on wireless sensor networks.The main theme is the mobility and localization in these networks. This work describes different methods and capabilities of mobile and localization schemes. This work describes a new localization protocol for wireless sensor networks. Finally, there is included a new protocol in the simulation at Network Simulator 2 and evaluate the results obtained.
Simulation scenarios in NS2 demonstrating knowledge obtained in the MPKT course
Mašek, Jan ; Mlýnek, Petr (referee) ; Jeřábek, Jan (advisor)
The aim of the bachelor´s thesis is to develop simulation tasks for modeling of data networks. The tasks will be used in the course Modern communication technique (MKPT). The networks are simulated in the environment of Network Simulator 2 (NS2). A brief description of program environment NS2, as well as basics of Tcl language is mentioned in the introduction. Described is the possibility of simulation HTTP protocol in NS2 using OTcl PagePool classes. Totally six proposed tasks form the core of the thesis. The first task uses PagePool/Math and displays the simplest communication between client, server and cache. Next task uses PagePool/CompMath and it shows the communication between client, cache, Web server, FTP server and FTP client. The task, that uses PagePool/WebTraf class, simulates communication between two clients and three servers. The last three tasks are of different topologies and course of communication using PagePool/ProxyTrace. The exercises of this class are the most complicated and their input files allow defining whole communication. The outputs of exercises are given in graphs, log files of HTTP communication and the last task contains detailed instructions.
Usage of NS2 simulator in multicast networks
Hošek, Petr ; Mlýnek, Petr (referee) ; Koutný, Martin (advisor)
The thesis is focused on routing in data network, especially on network method of multicast. The first section closely deals with particular multicast protocols and next with models of multicast, mainly Any Source Multicast and Source Specific Multicast. The main point of this work is implementation of multicast using Network Simulator. On the practical level, two laboratory exercises are included. In this part, readers have the possibility to make sure of reached knowledge of multicast and its implementation in NS2.

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