Name: Thaís Fernanda da Silva Couto
Type: MSc dissertation
Publication date: 02/03/2023

Namesort descending Role
Marcelo Eduardo Vieira Segatto Co-advisor *
Maria Jose Pontes Advisor *

Examining board:

Namesort descending Role
Diogo Vieira Nogueira Coelho External Examiner *
Jair Adriano Lima Silva Internal Examiner *
Maria Jose Pontes Advisor *

Summary: This master`s thesis investigates possible topologies for implementing 5G
technology using the installed fiber optic network. It considers the fact that current switches are equipped with optical line terminals (OLTs) that support passive optical networking. 5G mobile systems have the characteristic of a dense network, since the radio coverage area provided by each access point is limited. A large number of antennas are required and the fiber optic infrastructure available for fiber to the home (FTTH) services may be a viable solution. Considering that the cost of deploying an ODN (Optical Distribution Network) is the highest cost related to building a PON (Passive Optical Network), this paper proposes to take advantage of already installed fiber optic cables to optimize investments. Besides the costs, it is also important to note that there is a physical limitation to the deployment of new optical cables due to the large occupation of poles on the streets of large cities. This is a characteristic of the aerial networks deployed in underdeveloped countries such as Brazil. For example, in the Metropolitan Region of Grande Vitoria, the co-location of poles is regulated by the local energy concessionaire EDP, responsible for the poles installed on public roads and which establishes, through regulations, that the occupation limit for a pole is five positions. In other words, it is not allowed, according to the concessionary rules, to occupy more than five positions on a pole. Consulting the companies registered in Anatel with SCM (Multimedia Communication Service) license and authorization to provide broadband services, 4,870 companies were found in ES alone. This is one more reason that justifies the need to take advantage of the existing networks, upgrading the border devices. The results show that to use the existing networks it will be necessary to upgrade the edge assets, as well as a new configuration in the topologies of PON networks most commonly deployed today.

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