Title
Performanse telekomunikacionog radio sistema sa makro kombinovanjem pri prostiranju u uslovima urbane Sredine
Creator
Maričić, Srđan, 1969-
CONOR:
16276327
Copyright date
2021
Object Links
Select license
Autorstvo-Nekomercijalno-Bez prerade 3.0 Srbija (CC BY-NC-ND 3.0)
License description
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Language
Serbian
Cobiss-ID
Theses Type
Doktorska disertacija
description
Datum odbrane: 04.02.2022.
Other responsibilities
predsednik komisije
Milić, Dejan
član komisije
Drajić, Dejan
član komisije
Đošić, Danijel
član komisije
Panajotović, Aleksandra
Academic Expertise
Prirodno-matematičke nauke
Academic Title
-
University
Univerzitet u Nišu
Faculty
Elektronski fakultet
Group
Katedra za telekomunikacije
Alternative title
Performance of telecomunication radio systems with macro combining in urban propagation environments
Publisher
[S. N. Маričić]
Format
146 listova
description
Bibliografija: listovi 140-146.
description
Relay communication systems
Abstract (en)
Fundamental problems in wireless mobile telecommunication systems in urban environments are fast and slow fading, and interchannel interference. These problems significantly limit channel capacity and spectral efficiency of transmission. In this dissertation, macrodiversity reception of signals will be considered, aimed at reducing the negative influence of fast and slow fading. Performance of macrodiversity system will be considered when KG fading is present at the inputs of two-branch receiver, i.e. when the receiver is subjected to simultaneous influence of fast and slow fading effects, and interchannel interference. Interference envelope is also considered to be KG distributed, as expected for the considered urban environments. The dissertation will first determine probability density function of the ratio of two KG random variables, and then also the probability density functionof the ratio of signal and interference at the output of SC receiver. Also, cumulative probability, characteristic function and outage probability for the receiver with SC diversity technique in the presence of Nakagami-m and slow Gamma fading and interchannel interference will be determined.
Authors Key words
Modeli fedinga, tehnike prenosa signala AF i DF, diverziti tehnike kombinovanja, modulacioni formati QPSK i BPSK
Authors Key words
Fading models, AF and DF signal transfer techniques, diversity combining techniques, QPSK and BPSK modulation formats
Classification
621.396.946+621.395.38(043.3)
Subject
T180
Type
Tekst
Abstract (en)
Fundamental problems in wireless mobile telecommunication systems in urban environments are fast and slow fading, and interchannel interference. These problems significantly limit channel capacity and spectral efficiency of transmission. In this dissertation, macrodiversity reception of signals will be considered, aimed at reducing the negative influence of fast and slow fading. Performance of macrodiversity system will be considered when KG fading is present at the inputs of two-branch receiver, i.e. when the receiver is subjected to simultaneous influence of fast and slow fading effects, and interchannel interference. Interference envelope is also considered to be KG distributed, as expected for the considered urban environments. The dissertation will first determine probability density function of the ratio of two KG random variables, and then also the probability density functionof the ratio of signal and interference at the output of SC receiver. Also, cumulative probability, characteristic function and outage probability for the receiver with SC diversity technique in the presence of Nakagami-m and slow Gamma fading and interchannel interference will be determined.
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