Estudo sobre a viabilidade de uso de redes sem fio na rede metropolitana da Aeronáutica na área do Galeão

Abstract

The deployment of a wired metropolitan network requires a large infrastructure for passing miles of fiber optic cable that will interconnect the entire network. As a consequence, we will have costs of deploying and maintaining very high, often prohibitive. Aiming to simplify installation, maintenance and reduce costs and a network structure, emerged technologies transmit data wirelessly, and a pioneer is microwave transmission, used for long distances, but with much lower speeds the transmission by cable. For local networks, we have wireless technology, which allows wireless connection to devices up to 100 meters away from the point of distribution. Several companies are already using this technology in their local networks. The wireless network technologies for long distances are being constantly improved, with the aim of offering high transfer rates, reliability, availability, to ensure the user a satisfactory Quality of Experience in the use of these technologies. The two main standards in this area are the WiMAX (Worldwide Interoperability for Microwave Access) and LTE (Long Term Evolution). Both promise to offer transmission rates around 100 Mbps, security, quality of service and reliability, providing implementation and maintenance costs lower than a wired network. Under the Comando da Aeronáutica (COMAER) we have a Galeão Metropolitan Network, which was established in 2001 using optical fiber, and performs communication of Aeronautics organizations located in the area of Galeão with the internal corporate network, the Intraer. As the years passed, there were several problems with your wired infrastructure such as fiber breaks accidentally or by action of rodents, forcing many repairs in structure to maintain network availability. Due to these factors, we can think in a wireless solution for this communication network. In this paper we deepen the study of WiMAX and LTE standards, so check the viability of using these technologies in the Galeão Metropolitan Network.