Deployment of Long Term Evolution (LTE) Femtocells in Dead Zone Areas
No Thumbnail Available
Date
2014-12
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
Addis Ababa University
Abstract
The aim of this thesis is to investigate the use of femtocells deployment for indoor users under
long term evolution (LTE).LTE is currently under deployment in Addis Ababa to support the
high traffic demand of devices. Addis Ababa as a capital city of Ethiopia has got different big
buildings, companies, hotels, hospitals, condo, and residential houses etc. Most of the calls and
data services like exploring internet will takes place indoors. Although LTE is the latest
technology, due to different signal attenuation factors like the number of walls, the number of
floors, furnitureās and others, the need of subscribers are not fulfilled yet. For this reasons
femtocells are taken as solution, with the aim of enhancing the capacity for indoor users. They
are new technological advance, which are used to significantly boost cellular network
performance especially in indoors.
Firstly, this thesis is intended to give good understanding of LTE technology and femtocells. In
the second stage several femtocells deployment constraints are studied along with the proposed
flow chart. These constraints are spectrum allocation, handover, interference, mobility and give
some ideas for how to overcome them. Jamo condo was taken as a sample for performance
analysis using Multi Wall Multi Floor (MWMF) indoor propagation model. Finally this thesis
work could be investigated by comparing the performance of LTE with and without femtocells
deployment using MATLAB.
The performances of femtocells are discussed based on specific key performance indicators
(KPI). Accordingly path losses, received power, signal to interference plus noise ratio, data rate
and power control are performance measurements used in this thesis. The results of the
experiment show that femtocells are well suited for enhancing network capacity for indoor users.
However, unable to be done based on real deployment due to absence of femtocells in all
buildings of Addis Ababa. This thesis work recommends further study of the femtocells
technology for increasing the data rate in certain dead zone areas other than indoors.
Key words: LTE; femtocells; deployment considerations
Description
Keywords
LTE, Femtocells, Deployment considerations