BAHIR DAR UNIVERSITY
BAHIR DAR INSTITUTE OF TECHNOLOGY (BiT)
SCHOOL OF ELECTRICAL AND COMPUTER ENGINEERING
Dimensioning and Planning of Multi RAT Radio Network for Future
Deployment in Bahir Dar City
By:
Tibebu Mekonnen
Adviser
Dr. Yalemzewd Negash (Asst. Professor)
A thesis submitted to the School of Electrical and Computer
Engineering in partial Fulfillment of the Requirements for the Degree of
Masters of Science in Communication Systems Engineering
November, 2015
Bahir Dar, Ethiopia
International Journal of Scientific & Engineering Research, Volume 7, Issue 11, November-2016 ISSN 2229-5518
1557
IJSER 2016 http://www.ijser.org
IJSER
BAHIR DAR UNIVERSITY
BAHIR DAR INSTITUTE OF TECHNOLOGY (BiT)
SCHOOL OF ELECTRICAL AND COMPUTER ENGINEERING
Dimensioning and Planning of Multi RAT Radio Network for Future
Deployment in Bahir Dar City
By: Tibebu Mekonnen
Approved by Board of Examiners
Fekadu Mihret _______________________
Chair Person Signature
Dr. Yalemzewd Negash ______________________
Adviser Signature
Dr. Yilma Taye ______________________
Internal examiner Signature
Dr. Towfik Jemal ______________________
External examiner Signature
International Journal of Scientific & Engineering Research, Volume 7, Issue 11, November-2016 ISSN 2229-5518
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IJSER 2016 http://www.ijser.org
IJSER
Declaration
I, the undersigned, declare that the thesis comprises my own work. In compliance with
internationally accepted practices, I have fully acknowledged and refereed all materials used in
this thesis work
Tibebu Mekonnen _______________________
Name Signature
Place: Bahir Dar University, Ethiopia
Date of Submission: 15-11-2015
This thesis has been submitted for examination with my approval as a university advisor.
Dr. Yalemzewd Negash _______________________
Advisor Signature
International Journal of Scientific & Engineering Research, Volume 7, Issue 11, November-2016 ISSN 2229-5518
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IJSER 2016 http://www.ijser.org
IJSER
Bahir Dar Institute of Technology Bahir Dar University
Dimensioning and Planning of Multi RAT Radio Network for Future Deployment in Bahir Dar City
BiT
i
Acknowledgements
First and foremost, I would like to offer my sincerest gratitude to my adviser Dr. Yalemzewd
Negash (Asst. Professor SECE, AAiT, AAU), who has supported me throughout my thesis and
encouraging me to work in my own way, and given me the freedom to research issues i have found
relevant. This thesis would not have been possible without the help of him.
I wish to express my deep and sincere gratitude to the community of BiT, particularly I am
extremely thankful to Dr. Nigussie Mulugeta, Dr. Fikreselam Gared, Dr. Yilma Taye, Mr. Fekadu
Mihret, and Mr. Amare Kassa for providing valuable support and guidance during my stay in the
university. And I would like to thank Dr.-Ing. Dereje Hailemariam (SECE, AAiT, AAU) for pin
pointing interesting research areas when he conducted wireless communication course.
It is also a pleasure to pay tribute to ethio telecom, Huawei, ZTE and Ericsson staffs for providing
important data that are needed in this work. I would like to express my heartfelt thanks to my
classmate Anteneh Temesgen for his friendship, unconditional support, productive ideas and
discussions throughout this work.
I am grateful to my thesis examiner Dr. Towfik Jemal (SECE, JiT, JU), for his excellent comments
and recommendations during my final thesis defense.
Finally I would like to express my special thanks to my families and friends who always motivate
and support me to complete this thesis, and I am thankful for those who stood by me throughout
my work, giving me encouragements and valuable help.
International Journal of Scientific & Engineering Research, Volume 7, Issue 11, November-2016 ISSN 2229-5518
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Bahir Dar Institute of Technology Bahir Dar University
Dimensioning and Planning of Multi RAT Radio Network for Future Deployment in Bahir Dar City
BiT
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Table of Contents
Acknowledgements .............................................................................................................................. i
Table of Contents ................................................................................................................................ii
List of Figures .................................................................................................................................... iv
List of Tables .....................................................................................................................................vi
List of Acronyms...............................................................................................................................vii
Abstract............................................................................................................................................... x
1. Introduction ................................................................................................................................... 1
1.1. Background.............................................................................................................................. 2
1.2. Statement of the Problem ......................................................................................................... 3
1.3. Objective of the Thesis............................................................................................................. 3
1.3.1. General Objective:........................................................................................................ 3
1.3.2. Specific Objectives ....................................................................................................... 3
1.4. Literature Review..................................................................................................................... 4
1.5. Methodology............................................................................................................................ 6
1.6. Scope of the Thesis .................................................................................................................. 7
1.7. Thesis Outline.......................................................................................................................... 7
2. Radio Access Technologies Overview ........................................................................................ 8
2.1. GSM........................................................................................................................................ 8
2.1.1. GSM Network Architecture .......................................................................................... 8
2.1.2. FDMA and TDMA Radio Spectrums............................................................................ 9
2.1.3. GSM Channels ............................................................................................................. 9
2.2. UMTS.................................................................................................................................... 10
2.2.1. UMTS Network Architecture...................................................................................... 10
2.2.2. UMTS Operation Modes and Multiple Access ............................................................ 12
2.2.3. Power Control ............................................................................................................ 12
2.2.4. Spread Spectrum......................................................................................................... 13
2.3. LTE ....................................................................................................................................... 14
2.3.1. LTE Network Architecture ......................................................................................... 14
2.3.2. LTE Physical Layer .................................................................................................... 16
2.3.3. LTE FDD Frame Structure.......................................................................................... 19
2.3.4. LTE MIMO Basics ..................................................................................................... 21
International Journal of Scientific & Engineering Research, Volume 7, Issue 11, November-2016 ISSN 2229-5518
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Bahir Dar Institute of Technology Bahir Dar University
Dimensioning and Planning of Multi RAT Radio Network for Future Deployment in Bahir Dar City
BiT
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2.4. Propagation Models ............................................................................................................... 25
2.4.1. Free Space Path loss Model (FSPL) ............................................................................ 25
2.4.2. Okumura-HATA Model.............................................................................................. 27
2.4.3. COST-231 HATA Model............................................................................................ 29
2.4.4. COST-231 Walfisch-Ikegami Model........................................................................... 3
