O futuro da mobilidade em redes sem fio

Abstract

The use of communications networks for data exchange is in absolute expansion, because it allows an intense relationship between lots of users at the same time. In this sense, the wireless network technology is the one that is growing faster independently of the technology used, has a lot of advantages, such as easy installation, no wires and mobility. The search for communication technologies even more efficient, secure and practice has being continuous by producer of this sector and in this context, the wireless network are winning each more space and credibility. The portable computers are pre-built with the Wi-Fi technology – used in large scale by the domestic, small offices and airport users, etc, this technology makes the computers connections very easy and affordable. However, the mobility in this technology is useful only in small areas without some hurdle, due the demarcation of own technology. To overcome the area coverage issues the WiMAX was developed. This technology operates in a new physical layer and with new modulation schemes, allowing a much larger coverage, and providing a very high speed wireless network.