diplomsko delo
Jakob Števanec (Author), Nikolaj Zimic (Mentor)

Abstract

Namen diplomske naloge je bil izdelava ponavljalnika za Wi-Fi. Naloga ponavljalnika je, da deluje kot posrednik med povezano napravo in dostopno točko. S tem se podaljša doseg dostopne točke. Program je bil izdelan na operacijskem sistemu Ubuntu s programskim jezikom C. Za delovanje sta bili uporabljeni dve mrežni kartici – ena v smeri povezane naprave in druga v smeri dostopne točke. Za branje in pošiljanje paketov je bila uporabljena knjižnica libpcap, za postavitev lastne dostopne točke pa je bil uporabljen program hostapd. V prvi polovici je predstavljena teorija o delovanju brezžičnega omrežja Wi-Fi in njegovih omrežnih paketov. Druga polovica diplomske naloge predstavlja teoretični del, kjer sta opisana potek razvoja skozi tri iteracije ter delovanje končnega izdelka. Na koncu smo izvedli tudi nekaj testov, pri katerih je bila izmerjena hitrost prenosa podatkov pri različnih scenarijih. Ugotovljeno je bilo, da so hitrosti dosti nižje v primerjavi z neposredno povezavo, zaradi česar je uporabnost ponavljalnika omejena.

Keywords

Wi-Fi;brezžično omrežje Wi-Fi;brezžično omrežje;ponavljalnik;802.11;mrežni paketi;Libpcap;Hostapd;iperf;univerzitetni študij;diplomske naloge;

Data

Language: Slovenian
Year of publishing:
Typology: 2.11 - Undergraduate Thesis
Organization: UL FRI - Faculty of Computer and Information Science
Publisher: [J. Števanec]
UDC: 004.7(043.2)
COBISS: 187336451 Link will open in a new window
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Downloads: 6
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Other data

Secondary language: English
Secondary title: Creating a repeater for the Wi-Fi protocol
Secondary abstract: The aim of this diploma thesis was to create a Wi-Fi repeater. The function of the repeater is to act as an intermediary between the connected device and the access point. This extends the range of the access point. The program was built using the Ubuntu operating system with the C programming language. Two network cards were used for the operation - one in the direction of the connected device and the other in the direction of the access point. The libpcap library was used to read and send packets, and the hostapd program was used to set up its own access point. The first half presents the theory behind Wi-Fi and its network packets. The second half of the thesis is the theoretical part, which describes the development process through three iterations and the operation of the final product. Finally, some tests were carried out to measure the data transfer rate in different scenarios. It was found that the speeds are much lower compared to a direct connection, which limits the usefulness of the repeater.
Secondary keywords: Wi-Fi;repeater;wireless network;802.11;network packets;Libpcap;Hostapd;iperf;computer and information science;diploma;Brezžični komunikacijski sistemi;Računalništvo;Univerzitetna in visokošolska dela;
Type (COBISS): Bachelor thesis/paper
Study programme: 1000468
Embargo end date (OpenAIRE): 1970-01-01
Thesis comment: Univ. v Ljubljani, Fak. za računalništvo in informatiko
Pages: 66 str.
ID: 23016267