| Name: | Description: | Size: | Format: | |
|---|---|---|---|---|
| 8.13 MB | Adobe PDF |
Authors
Abstract(s)
As redes de acesso ótico, têm sido consideradas uma solução definitiva para o problema
da limitação de largura de banda quando comparadas com outras soluções. Por essa
razão, as redes PON (Passive Optical Network) têm tido um crescimento enorme nos
últimos anos, oferecendo diversas soluções ao cliente final quer este seja residencial ou
empresarial. O sucesso desta tecnologia é tal, que a penetração do serviço tem batido
recordes de adesão dadas as vantagens das fibras óticas.
Pretende-se com esta dissertação, dimensionar uma rede GPON (Gigabit Passive Optical
Network) numa área de cobertura da zona de Lisboa, para ser explorada por duas
operadoras concorrentes. Para tal, utilizou-se o software AutoCad com cartografia
georreferenciada da zona de cobertura em questão. A rede foi projetada para uma taxa
de penetração de 100 % (50 % para cada operadora). Dividiu-se a zona de cobertura em
células e posteriormente em microcélulas, sendo que para cada edifício aí existente
foram projetadas fibras ativas para alimentar os diferentes ONTs (Optical Network
Terminal) na rede do cliente. De igual forma, projetaram-se também os equipamentos
passivos a serem instalados na célula projetada, desde o CO (Central Office), ao ODN
(Optical Distribution Network) até a rede do cliente. De seguida, fez-se o levantamento
destes equipamentos e avaliou-se a viabilidade económica da rede GPON
implementada, bem como o tempo de retorno do investimento inicial. Finalmente,
introduziu-se a tecnologia XGPON (10-Gigabit-capable Passive Optical Network) sobre a
mesma rede de acesso, permitindo desta forma ter uma oferta maior em termos de
largura de banda.
Em termos médios, pode afirmar-se que o custo de implementação de uma célula ronda
valores entre 150 000 € e 200 000 €, sendo que o tempo de retorno é de cerca de um
ano e três meses ou um ano e seis meses, dependendo da taxa de penetração dos
serviços solicitados pelos diferentes clientes.
Optical access networks have been considered a definitive solution to the problem of bandwidth limitation when compared to other solutions. For this reason, Passive Optical Network (PON) networks have grown tremendously in recent years, offering a number of solutions to the end customer whether residential or business. The success of the technology is such that service penetration has hit accession records given the advantages of optical fibers. This dissertation intends to design a GPON (Gigabit Passive Optical Network) network in a coverage area of the Lisbon zone, to be exploited by two competing operators. For such, used the AutoCad software with georeferenced mapping of the coverage area in question. The network is designed for a penetration rate of 100% (50% for each operator). The coverage zone was divided into cells and then into microcells, being that for each building there was designed active fibers to power the different ONTs (Optical Network Terminal) on the customer network. Likewise, the passive equipment to be installed in the projected cell, from the CO (Central Office), to the Optical Distribution Network (ODN) till customer network, was also designed. Then, the equipment was surveyed and the economic viability of the implemented GPON network was evaluated, as well as the time of return of the initial investment. Finally, XGPON (10-Gigabit-capable Passive Optical Network) technology was introduced on the same access network, allowing in this way to have a greater offer in terms of bandwidth. In average terms, it can be stated that the cost of implementing a cell ranges from € 150,000 to € 200,000, with the payback time being about one year and three months or a year and six months depending of the penetration rate of the services requested by the different clients.
Optical access networks have been considered a definitive solution to the problem of bandwidth limitation when compared to other solutions. For this reason, Passive Optical Network (PON) networks have grown tremendously in recent years, offering a number of solutions to the end customer whether residential or business. The success of the technology is such that service penetration has hit accession records given the advantages of optical fibers. This dissertation intends to design a GPON (Gigabit Passive Optical Network) network in a coverage area of the Lisbon zone, to be exploited by two competing operators. For such, used the AutoCad software with georeferenced mapping of the coverage area in question. The network is designed for a penetration rate of 100% (50% for each operator). The coverage zone was divided into cells and then into microcells, being that for each building there was designed active fibers to power the different ONTs (Optical Network Terminal) on the customer network. Likewise, the passive equipment to be installed in the projected cell, from the CO (Central Office), to the Optical Distribution Network (ODN) till customer network, was also designed. Then, the equipment was surveyed and the economic viability of the implemented GPON network was evaluated, as well as the time of return of the initial investment. Finally, XGPON (10-Gigabit-capable Passive Optical Network) technology was introduced on the same access network, allowing in this way to have a greater offer in terms of bandwidth. In average terms, it can be stated that the cost of implementing a cell ranges from € 150,000 to € 200,000, with the payback time being about one year and three months or a year and six months depending of the penetration rate of the services requested by the different clients.
Description
Trabalho final de mestrado para a obtenção do grau de Mestre em Engenharia de Eletrónica e Telecomunicações
Keywords
Rede de acesso Access networks Fibra ótica Optic fiber Análise tecnoeconómica Techno-economic analysis FTTH GPON XGPON
Citation
OLIVEIRA, António Carlos Martins - Redes de acesso em fibra ótica : situação atual e evolução. Lisboa: Instituto Superior de Engenharia de Lisboa, 2017. Dissertação de mestrado.
Publisher
Instituto Superior de Engenharia de Lisboa