Title
Performanse i informacioni kapacitet mobilnih telekomunikacionih sistema sa tehnikom diverzita u različitim propagacionim okruženjima
Creator
Đošić, Danijel B. 1983-
Copyright date
2018
Object Links
Select license
Autorstvo-Nekomercijalno-Bez prerade 3.0 Srbija (CC BY-NC-ND 3.0)
License description
Dozvoljavate samo preuzimanje i distribuciju dela, ako/dok se pravilno naznačava ime autora, bez ikakvih promena dela i bez prava komercijalnog korišćenja dela. Ova licenca je najstroža CC licenca. Osnovni opis Licence: http://creativecommons.org/licenses/by-nc-nd/3.0/rs/deed.sr_LATN. Sadržaj ugovora u celini: http://creativecommons.org/licenses/by-nc-nd/3.0/rs/legalcode.sr-Latn
Language
Serbian
Cobiss-ID
Theses Type
Doktorska disertacija
description
Datum odbrane: 20.06.2019.
Other responsibilities
mentor
Milić, Dejan 1972-
član komisije
Perić, Zoran
član komisije
Nikolić, Zorica
član komisije
Milović, Daniela
član komisije
Milovanović, Gradimir
Academic Expertise
Tehničko-tehnološke nauke
University
Univerzitet u Nišu
Faculty
Elektronski fakultet
Group
Katedra za telekomunikacije
Alternative title
Performance and information capacity of mobile telecomunication systems employing diversity technique in various propagation environments
Publisher
[D. B. Đošić]
Format
XI, 169 lista
description
Biografija autora: list [170];
Bibliografija: list. 158-169.
description
Telecommunications
Abstract (en)
In this doctoral dissertation, the diversity techniques are considered in
order to reduce the influence of fading on the system performances in
different propagation environments.
The second chapter considers the selective combining (SC) and the
maximal ratio combining (MRC) with two and three inputs. SC and
MRC receivers with two inputs are considered when Nakagami-m
fading is at the first input while α-μ fading is at the second input.
Then, an SC receiver with three inputs is considered when Nakagamim,
Rice and Rayleigh fading are presented. As a special case, SC and
MRC receivers with three inputs with Rice, Nakagami-m and α-μ
fading are considered. The SC performance of the two-input receivers
is considered in the case of the Nakagami-m fading and Nakagami-m
interference at one input, while at the second input are the Rice fading
and Rice interference, as well as the case when a desired Rice signal
and Nakagami-m interference are presented. For these models the
probability density function (PDF), cumulative density function
(CDF), moments, level crossing rate (LCR) and the information
capacity of the channel at the output from the SC and MRC receivers
are calculated, the numerical results are graphically presented and
confirmed by simulations.
In the third chapter, the significant contribution of the doctoral
dissertation is the formation of the broken Nakagami-m distribution
and the analysis of the broken Nakagami-m fading. An SC receiver
with two and three inputs with broken Nakagami-m fading is
examined. The dissertation also examines the case of the SC two-way
receivers where there is a broken Rice/Nakagami-m fading. For such
cases, expressions for PDF, CDF and LCR are derived.
In the fourth chapter, the macrodiversity system is analyzed. The
macrodiversity SC receiver with two micro-diversity SC receivers,
when α-μ fading is present at the inputs and the correlated Gamma
shadowing, as well as the case when Rayleigh, Nakagami-m fading
and the correlated Gamma shadowing are at the inputs are examined.
The case of macrodiversity SC receivers with three microdiversity SC
receivers is further considered when Rice, Nakagami-m, κ-μ fading
and correlated Gamma shadowing are presented at inputs. For these
models, the PDF, CDF, LCR and the information capacity of the
channels at the macro-diversity SC receiver output are calculated and
numerical results are graphically presented.
Authors Key words
Nakagami-m feding, α-μ feding, Rajsov feding, Relijev feding,
Selektivni kombiner SC, Maksimalni odnos kombinovanja MRC,
Makrodiverziti, Kumulativna verovatnoća, Srednji broj osnih preseka,
Kapacitet kanala
Authors Key words
Nakagami-m fading, α-μ fading, Rician fading, Rayleigh fading,
Selective combining (SC), Maximal ratio combining (MRC),
Makroviversity, Cumulative distribution function (CDF), Level
crossing rate (LCR), Kapacity channel
Classification
621.391.812(043.3)
Subject
T 180
Type
Tekst
Abstract (en)
In this doctoral dissertation, the diversity techniques are considered in
order to reduce the influence of fading on the system performances in
different propagation environments.
The second chapter considers the selective combining (SC) and the
maximal ratio combining (MRC) with two and three inputs. SC and
MRC receivers with two inputs are considered when Nakagami-m
fading is at the first input while α-μ fading is at the second input.
Then, an SC receiver with three inputs is considered when Nakagamim,
Rice and Rayleigh fading are presented. As a special case, SC and
MRC receivers with three inputs with Rice, Nakagami-m and α-μ
fading are considered. The SC performance of the two-input receivers
is considered in the case of the Nakagami-m fading and Nakagami-m
interference at one input, while at the second input are the Rice fading
and Rice interference, as well as the case when a desired Rice signal
and Nakagami-m interference are presented. For these models the
probability density function (PDF), cumulative density function
(CDF), moments, level crossing rate (LCR) and the information
capacity of the channel at the output from the SC and MRC receivers
are calculated, the numerical results are graphically presented and
confirmed by simulations.
In the third chapter, the significant contribution of the doctoral
dissertation is the formation of the broken Nakagami-m distribution
and the analysis of the broken Nakagami-m fading. An SC receiver
with two and three inputs with broken Nakagami-m fading is
examined. The dissertation also examines the case of the SC two-way
receivers where there is a broken Rice/Nakagami-m fading. For such
cases, expressions for PDF, CDF and LCR are derived.
In the fourth chapter, the macrodiversity system is analyzed. The
macrodiversity SC receiver with two micro-diversity SC receivers,
when α-μ fading is present at the inputs and the correlated Gamma
shadowing, as well as the case when Rayleigh, Nakagami-m fading
and the correlated Gamma shadowing are at the inputs are examined.
The case of macrodiversity SC receivers with three microdiversity SC
receivers is further considered when Rice, Nakagami-m, κ-μ fading
and correlated Gamma shadowing are presented at inputs. For these
models, the PDF, CDF, LCR and the information capacity of the
channels at the macro-diversity SC receiver output are calculated and
numerical results are graphically presented.
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