Functional approach to a hybrid wireless network for mobile stations

The limited range of wireless mediums is often compensated for by a cellular topology controlled by base stations interconnected by means of a wired infrastructure. The size of the area covered by such networks varies a lot according to the wireless medium used. They do, however, share certain functionalities which are presented here in the form of a functional model. To simulate this type of hybrid network, it is necessary to identify all parameters involved which may have an influence. This preoccupation led to an Entity model which is detailed in this paper for the case of an infrared wireless LAN for in-house communications. The principal parameters are classified and assigned to entities. The interactions between these entities and the characteristics of the network are identified for a future simulation