Utjecaj veličine okvira na propusnosti bežične lokalne mreže

undergraduate thesis

• Title (english): Influence of frame size on throughput of WLAN
• Author: Damjan Rendulić
• Mentor: Željko Ilić (mentor)
• Committee member: Željko Ilić (predsjednik povjerenstva)
• Committee member: Matija Džanko (član povjerenstva)
• Committee member: Nenad Markuš (član povjerenstva)
• Granter: University of Zagreb; Faculty of Electrical Engineering and Computing; Zagreb
• Defense date and country: 2014-07-14, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Computing
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Electrical Engineering

Abstract

Glavna tema ovog rada je utjecaj veličine okvira na propusnost kod bežičnih lokalnih mreža. Opisuje se razvoj standarda 802.11 za bežične lokalne mreže, njihove osnovne karakteristike i međusobna usporedba, postojeći načini rada, implementacije te njihove prednosti i mane. Razmatraju se pojedini slojevi od kojih su sastavljeni WLAN-ovi, njihova međusobna interakcija te razlike koje su se morale napraviti u odnosu na žični medij. Nadalje, prikazana su teorijska razmatranja utjecaja raznih parametara na propusnost. Navedene su osnovne formule pomoću kojih se u teoriji može izračunati propusnost. Ovisnosti su prikazani grafički kako bi se čitatelju omogućio lakši uvid u problematiku. Konačno, provela su se mjerenja kako bi se teorijske tvrdnje potkrijepile stvarnim rezultatima kroz nekoliko scenarija. Opisani su alati potrebni za provedbu mjerenja. Na priloženim grafičkim prikazima čitatelj može vidjeti usporedbe u propusnosti različitih scenarija i objašnjenja zašto su ona takva.

Abstract (english)

The main theme of this work is the impact of frame size on throughput in wireless local area networks. The process of standards development of basic standard for WLANs 802.11 is described, so as their main characteristics, their comparison, existing modes of operation, implementations and their pros and cons. Each of the layers that WLANs are consisted of are considered, their interaction and changes that had to be made in comparison to the standards for wired media. Moreover, theoretical analisys of the impact of various parameters on the throughput is described. Basic formulas are listed for theoretical throughput calculation. Dependencies are shown graphically so the reader can easily notice the existence of problems. Finally, measurements were made in order to confirm the theoretical analisys with practical results through various scenarios. Tools that were necessary for measurements are accounted. The comparison between each scenarios the reader can see on graphs so as the explanations of their claims.

• Keywords: Bežični LAN; Propusnost; IEEE 802.11; Kontrola pristupa mediju; MTU; PHY
• Keywords (english): Wireless LAN; Throughput; IEEE 802.11; Medium Access Control; MTU; PHY
• Language: croatian
• URN:NBN: urn:nbn:hr:168:807090
• Study programme: Title: Computing; Study programme type: university; Study level: undergraduate; Academic / professional title: sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka računarstva (sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka računarstva)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Closed access
• Created on: 2018-02-05 17:52:25