Combining Mobility Models with Arrival Processes

The realistic modeling of mobile networks makes it necessary to find adequate models to mimic the movement of mobile nodes. In the past various such mobility models have been proposed, that either create synthetic movement patterns or are based on real-world observations. These models usually assume a constant number of mobility nodes for the simulation. Although in real-world scenarios new nodes will arrive and other nodes will leave the simulation area, only little attention has been paid to modeling these arrivals and departures of nodes. In this paper we present an approach to easily extend mobility models to support the generation of arrivals and departures. For three standard mobility models the effect of this extension on the performance measures of a simple mobile network is shown.