Autonomic Group Mobility Model for Mobile Ad hoc Networks

In wireless ad hoc network applications, such as outdoor teaching, battlefield, scenes of a fire, flood, and earthquake a number of mobile hosts (MHs) may sometimes move together and sometimes separately. Members within the group have similar mobility patterns and can directly communicate with each other. In this paper, we propose an Autonomic Group Mobility (AGM) model for Mobile Ad hoc NETtworks (MANETs). It provides a better reflection of group movement behavior with possible group partitioning and merging. The model presents the trip chain of individuals belonging to a single home. During daily activities, they move from home to some locations and return back after completing daily tasks. Alternatively they partition and merge at some reference points placed on the trip chain. Therefore, at reference points the group members dynamically re-configure themselves triggering group partitioning and merging. We do performance evaluation by simulation. The simulation is written by the network simulator (NS-2) and the graphs are generated using MATLAB.