Optimal replication algorithms for hierarchical mobility management in PCS networks

摘要

In the context of heterogeneous networks and diverse communication devices, real person-to-person communication can be achieved with a universal personal identification (UPI) that uniquely identifies an individual and is independent of the access networks and communication devices. Hierarchical mobility management techniques (MMTs) have been proposed to support UPI. Traditional replication methods for improving the performance of such MMTs are threshold based. In this paper, we present optimal replication algorithms that minimized the network messaging cost based on network structure, communication link cost, and user calling and mobility statistics.