Abstract:
Group mobility model is the foundation of the mobility management in ubiquitous network. Aiming at the heterogeneous characteristics of ubiquitous network, this paper proposes a group force mobility model based on the Lennard Jones potential function. By introducing the concept of intermolecular forces, the motion state and mobile features of terminals are both formulated. Meanwhile, by analyzing its Lyapunov stability, it is shown that the terminals will reach agreement and the system is asymptotically stable. It is theoretically proved that this model can provide a feasible method for mobility management of the group moving in the ubiquitous network.