A DHCPv6 Based MAP Selection Scheme for Hierarchical Mobile IPv6

In hierarchical mobile IPv6 (HMIPv6), most of existing MAP selection schemes is mobile node (MN) based, which implements MAP selection on MN side and supposes all MNs use the same selection algorithm. But in practical environment, MNs usually adopt different MAP selection algorithms, which will disorder the MAP selection and make the performance of entire system hard to achieve as expected. Thus, a dynamic host configuration protocol for IPv6 (DHCPv6) based framework for MAP selection is proposed, where a DHCPv6 server is deployed to control the MAP selection by allocating proper regional care-of-address (RCoA) for MNs. Moreover, a statistical prediction based MAP selection algorithm is introduced in the framework to reduce the Inter-MAP handoffs and achieve better load control. The algorithm uses Poisson model to predict the number of MNs which will use MAPs in the future, and then selects a proper MAP based on these predicted quantities. Experimental results show that our proposed scheme significantly reduces the number of inter-MAP handoffs while a better load control is achieved compared with existing distance-based and mobility-based schemes.