Distributed mobility control for mobile-oriented future internet environments

Ever-increasing demand of mobile Internet traffics makes mobile networks change from hierarchical architecture to flat architecture. Most of the current mobility protocols are based on a centralized mobility anchor, by which all the control and data traffics are processed. In the flat network architecture, however, the centralized mobility scheme has some limitations, which include unwanted traffic flowing into core network, service degradation by a point of failure, and increased operational costs, etc. In this paper, we propose the three distributed mobility control schemes for flat architecture of future mobile networks: Partially Distributed Mobility Control (PDMC), Data-driven Distributed Mobility Control (DDMC), and Signal-driven Distributed Mobility Control (SDMC). By numerical analysis, we compare the proposed distributed mobility schemes with the existing centralized mobility scheme using Proxy Mobile IPv6 (PMIP) in terms of binding update and packet delivery costs. From the results, it is shown that the three proposed distributed schemes give better performance than the existing centralized PMIP scheme, and the SDMC scheme provides the best performance among the three proposed distributed schemes.