Modelagem de ferramenta para coleta de dados na camada física para auxílio em projetos de implantação de redes sem fio padrão 802.11

Abstract

The Wireless nets conquered the market quickly for they provide advantageous services in relation to the other ones, how mobility and creation easiness of temporary nets. However, all that mobility demands a care in the use being taken in consideration the level of radio frequency signal and others factors in the moment of project them. In this context present the modeling of a software for aid in the projects of wireless nets, because the existent softwares, in its majority, are supplied by equipments manufacturers of wireless nets without thread and they don't supply the needs of sign measurement, because they force the planner manually to do the work of recording of data. For the development of that tool it was done necessary a study on net without thread emphasizing the layers of low level, the physical layer and of connection of data, focusing the techniques of radio frequency transmission and the services of the layer MAC. Also became necessary the accomplishment of tests and demonstrations to verify the effectiveness of mentioned tools.