Femtocell performance studies for LTE

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Volume Title
School of Electrical Engineering | Master's thesis
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Author
Date
2011
Department
Tietoliikenne- ja tietoverkkotekniikan laitos
Major/Subject
Tietoverkkotekniikka
Mcode
S-38
Degree programme
Language
en
Pages
x + 61
Series
Abstract
In December 2004, the 3<sup>rd</sup> Generation Partnership Project (3GPP) launched the study item on the Universal Terrestrial Radio Access network (UTRAN) Long Term Evolution (LTE) to achieve a high-data-rate, low-latency and packet-optimized radio access technology. LTE is the label mark for the 4<sup>th</sup> Generation (4G) mobile system. In this thesis, a novel method of constructing femtocell and macrocell network under LTE standard is studied, providing an overview of LTE system architecture, radio access technology and radio resource management methods with femtocell concept involved. This thesis discusses the positive and negative effect of using femtocell in LTE, specifically, interference mitigation methods are provided for both co-layer and cross-layer networks. Scheduling and power control (PC) is crucial for mitigating interference between femtocell and macrocell as well as increasing system capacity in both uplink (UL) and downlink (DL). Based on the simulator provided by supervisor, an overall configuration and performance evaluation of the LTE PC in Macro cell with Femtocell Base Station (FBS) deployment scenarios is tested with different PC parameter settings. This work applies Fractional Power Control (FPC) and Frequency-Domain Scheduling (SFDS) scheme, which can separate the spectrum usage from FUEs and MUEs in a probabilistic manner. The simulation result proves that SFDS can significantly mitigate the strong interference from Macrocell User Equipment (MUE) in UL and FBS in DL. Traditional literature and the most recent publications were drawn on as a source of information.
Description
Supervisor
Hämäläinen, Jyri
Thesis advisor
Zheng, Zhong
Keywords
LTE, femtocell, power control, SFDS
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Citation
Permanent link to this item
https://urn.fi/URN:NBN:fi:aalto-2020122358240
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[dipl] Sähkötekniikan korkeakoulu / ELEC