Communications and Signal Processing Lab (ComSP)

Title	Evaluación de técnicas de gestión de recursos radio en sistemas celulares LTE-A
State	Finished
Author	Isabel María Delgado Luque
Director/s	Mª Carmen Aguayo Torres ,  Gerardo Gómez Paredes
University	Universidad de Málaga
Center	Escuela Técnica Superior de Ingeniería de Telecomunicación
Department	Ingeniería de Comunicaciones
Reading date	16/09/2019
File	PDF

This dissertation is focused on the analysis of radio resource management techniques

on LTE-Advanced cellular networks. In particular, two types of resource

management techniques are addressed: rst, the analysis focuses on radio resource

scheduling algorithms; secondly, those techniques oriented to inter-cell interference

management on cellular networks have been analyzed.

Starting with the radio resource scheduling, several algorithms that take into

account delay requirements have been analyzed. In addition, the fairness among users

for a Proportional Fair (PF) algorithm with signal-to-noise ratio (SNR) criterion was

analyzed against the transmission rate criterion, obtaining closed-form expressions

for the per user and system SNR distributions for the latter case. It has been shown

that there are notable dierences in terms of probability distribution associated with

the per user and per system SNR. Finally, the resource management for a Cloud

Radio Access Network (Cloud-RAN) has been addressed. In particular, the impact

of the delay on the H-ARQ report on the user performance has been analyzed.

Regarding the interference management techniques, the analysis of the system

performance in a cellular deployment based on Fractional Frequency Reuse (FFR)

has been done when using dierent resource allocation schemes. A simple method

has been proposed to determine the total transmission rate and the optimal partition

bandwidth for each resource allocation strategy. In addition, coordinated techniques

for interference management have been analyzed when applied from several access

points simultaneously. In particular, Joint Transmission (JT) without precoding has

been evaluated and compared with the Partial Frequency Reuse (PFR) technique

for the case of Machine-to-Machine trac type, showing that PFR technique outperforms

JT in terms of delay and average transmission rate. Finally, the Cell Range

Expansion (CRE) technique has been studied, evaluating the in uence of the value

of the bias associated with the CRE technique on the average performance of a

heterogeneous LTE-A network considering dierent base stations densities.