Original title: WiFi síť 802.11b a její simulace
Translated title: WiFi Network 802.11b and Its Simulation
Authors: Martiš, Viktor ; Očenášek, Pavel (referee) ; Šimek, Václav (advisor)
Document type: Bachelor's theses
Year: 2007
Language: cze
Publisher: Vysoké učení technické v Brně. Fakulta informačních technologií
Abstract: [cze] [eng]
Táto bakalárska práca sa zaoberá problematikou bezdrôtových sietí a ich simuláciou. Na začiatku je zahrnutý krátky úvod do bezdrôtových sietí a procesu simulovania. Práca je zameraná na jeden typ bezdrôtových sietí a to konkrétne na štandard IEEE 802.11b, tiež nazývaný ako "WiFi sieť". Ďalej je rozobraný sieťový simulátor "The network simulator - ns2" a možnosti jeho využitia. Následne je navrhnutá WiFi sieť, z ktorej je urobená hrubá analýza. Topológia je zvolená podľa reálnej siete, ktorá podlieha stálemu pozorovaniu a zaznamenávaniu prevádzky. Táto topológia siete je od simulovaná v spomenutom simulátore ns2, pomocou skriptu napísaného v jazyku TCL. Z dosiahnutých výsledkoch sú urobené analýzy. V závere je uvedené zhrnutie jednotlivých analýz a ich porovnanie s reálnym výkonom siete. This work deals with the technological background of wireless networks and the conceptual issues of their simulation. The introductory part provides a brief review of essential facts related to wireless networks and simulation flow. Furthermore, our work will focus on one particular type of such networks, which is governed by the standard IEEE 802.11b, also recognized as WiFi network. The actual simulation will be carried out by means of "The network simulator - NS2". Its general description is included together with some practical comments on possible deployment scheme. Then, we design a simple WiFi network which will be subjected to our analysis. The underlying topology was inspired by a real network scheme where the data traffic can be constatnly monitored and evaluated. Simulation of the proposed network was successsfully performed with help of the previously mentioned NS2 simulator. Script written in TCL language, which containted network definition and necessary control commands, served as the simulation input. The final part of this work contains a general summary of individual analyses and their comparison with real-life network performance.
Keywords: abstract model; evaluation of results; maximum link capacity; NS2 simulator; results of simulation; simulation model; simulation of WiFi network; simulation script; TCL; WiFi; wireless network; abstraktný model; bezdrôtová sieť; maximálna kapacita linky; porovnanie výsledkov; simulačný model; simulačný skript; simulácia WiFi siete; simulátor ns2; TCL; výsledky simulácie; WiFi sieť

Institution: Brno University of Technology (web)
Document availability information: Fulltext is available in the Brno University of Technology Digital Library.
Original record: http://hdl.handle.net/11012/56355

Permalink: http://www.nusl.cz/ntk/nusl-567309


The record appears in these collections:
Universities and colleges > Public universities > Brno University of Technology
Academic theses (ETDs) > Bachelor's theses