Kakovost pri mobilnih komunikacijah

DOBNIKAR, MATEJ (author), Humar, Iztok (mentor)

Diplomska naloga preučuje praktično uporabo storitev v mobilnih omrežjih in razlike med generacijami omrežij. Razložena sta pojma kakovosti storitve in kakovosti uporabniške izkušnje. V prvem delu je predstavljena teoretična osnova pojma kakovosti storitev QoS in kakovosti uporabniške izkušnje QoE, omenjene pa so tudi spremembe, ki so se zgodile na tem področju z vidika mobilnih omrežij. V nadaljevanju sta na kratko predstavljena struktura mobilnega omrežja in razvoj omrežij. Predstavljena sta tudi pojma QoS in QoE v mobilnih komunikacijah. Drugi del je eksperimentalni. Opisani so merilna oprema, način izvedbe testiranja in zbiranje rezultatov. Predstavljeni so tudi izvedeni testi, ki so bili opravljeni v omrežju Si.mobil. V tretjem delu so predstavljeni rezultati testiranja. Opravljena je tudi analiza dobljenih rezultatov, sledi pa primerjava rezultatov s teoretskimi vrednostmi. Pri izmerjenih vrednostih lahko opazimo odstopanja od teoretičnih za od 25 % na 3G omrežju do 70 % na 2G omrežju, kar pa v praksi ne predstavlja nujno poslabšanja kakovosti uporabniške izkušnje. V zadnjem delu je predstavljeno omrežje pete generacije. Izpostavljene in opisane so glavne prednosti omrežja prihodnosti, navedene pa so nekatere priložnosti uporabe.

• Language: Slovenian
• Keywords: kakovost storitev, kakovost uporabniške izkušnje, prenos podatkov, 5G omrežje.
• Work type: Undergraduate thesis
• Organization: FE - Faculty of Electrical Engineering
• Year: 2016
• PID: 20.500.12556/RUL-83132
• Publication date in RUL: 30.05.2016

Secondary language

• Language: English
• Title: Quality of mobile communications

Abstract

This thesis examins practical usage of services in mobile networks and defines differences between mobile generations. Presented are concepts of Quality of Service and Quality of Experience. The first part describes teoretical basics of Quality of Service and Quality of Experience terms in general. Changes that have occurred in terms of mobile networks are also mentioned. The following describes structure of mobile network and evolution of mobile network. Also presented are Quality of Service and Quality of Experience in terms of mobile networks. In practical part of the thesis, testing equipment, testing scenarios, and data processing are described and represented. In third part testing results are represented and analysed. Teoretical and practical results are compared. Deviation between teoretical and practical values is from 25 % on 3G network, to 70 % on 2G network, which has no big influence on Quality of Experience. In last part new generation network of 5G is represented. Main advantages of 5G network are exposed and described, Also some opportunities for usage in the future are stated.

• Keywords: Quality of Service, Quality of Experience, data transfer, 5G network.