According to the Mobile IP mobility management scheme proposed by IETF

a mobile host must update its home agent and correspondent hosts whenever it moves from a subnet to another.This will result in the high binding and delivery costs in the networks.In this paper

we present a new mobility management scheme

which can reduce the binding and delivery costs and improve the performance of the network by detecting local movement and home movement to decrease the number of binding and updating messages sent to its home agent and correspondent hosts

on the base of the current network architecture.