37 A mobile data communication protocol prototyping tool

In collaboration with Carlstedt Research & Technology AB and Eritel AB, we developed a prototyping tool for testing and modelling communication protocols in the mobile data network Mobitex. A screen dump of the tool is found in Figure 97, and shows a configuration with three radio base stations, each which covers a triangular area. The small circular objects are mobile users. Roaming of the users between base station areas is simulated using the drag-and-drop feature from Chapter 25.

Figure 97. The user interface of the protocol prototyping tool.