Interference Management with Dynamic Resource Allocation Method on Ultra-Dense Networks in Femto-Macrocellular Network

Ultra-Dense Network (UDN) which is formed from femtocells densely deployed is known as one of key technologies for 5th generation (5G) cellular networks. UDN promises for increased capacity and quality of cellular networks. However, UDN faces more complex interference problems than rarely deployed femtocells, worse on femtocells that are located on cell edge area of macrocell. Therefore, mitigating or reducing effects of interferences is an important issue in UDN. This paper focuses on interference management using dynamic resource allocation for UDN. Types of interference considered in this study are cross-tier (macrocell-to-femtocell) and co-tier (femtocellto-femtocell) interferences for uplink transmission. We consider several scenarios to examine the dynamic resource allocation method for UDN in case of femtocells deployed in the whole area of microcell and in the cell edge area of macrocell. Simulation experiment using MATLAB program has been carried out. The performance parameters that are collected from the simulation are Signal to Interference and Noise Ratio (SINR), throughput, and Bit Error Rate (BER). The obtained simulation results show that system using dynamic resource allocation method outperforms conventional system and the results were consistent for the collected performance parameters. The dynamic resource allocation promises to reduce the effects of interference in UDN

Evaluación de la tecnología Small Cells en una red de última generación 3G/LTE

The growing demand to mobile operators for better data service in addition to the upward rise in consumption of mobile data, generate the need to find practical solutions that help mobile operators to handle these problems. This thesis presents the implementation and characterization of a Small Cell, an indoor solution installed in the network of an operator in the country and tested in the city of Guayaquil. A general context of this solution was first shown in this project to understand the generalities of a Small Cell indoor solution. Then we introduce a methodology part in which we explain the tests performed to this equipment and how we should run these tests, plus the implementation stages required to perform the proper installation of this indoor solution in a building. Finally we present the practical phase in which we detailed each step taken in the installation of a Small Cell, along with an analysis of the tests on which it will be seen that the Small Cell produces improved mobile data download and becomes a viable and ideal indoor solution for the client that can be implemented in our country.  La creciente demanda de un mejor servicio de datos hacia las operadores móviles además de la ascendente alza en el consumo de datos móviles del cliente, generan la necesidad de encontrar soluciones prácticas que ayuden a los operadores a manejar estos problemas. En esta tesis se presenta la implementación y cateterización de una solución indoor Small Cell que se realizó en la red de un operador del país en un sitio de prueba dentro de la ciudad de Guayaquil. Se muestra primero un contexto general de esta solución para entender las generalidades y de que se trata la misma para luego mostrar una parte de metodología en la que se explican las pruebas que pueden realizarse y cómo se deben ejecutar estas pruebas, además de las etapas de implementación para conseguir la instalación adecuada de este equipo. Por último se muestra la fase práctica en la que se detalla las etapas y cada paso realizado en la instalación de una Small Cell, además de un análisis de las pruebas en las que se ven que la Small Cell produce una mejora en la descarga de datos y se coloca como una solución indoor viable e ideal para el cliente