An Efficient Hierarchical Mobile IPv6 Group-Based BU Scheme for Mobile Nodes in IoT Network

With the swift growth of mobile devices in a wireless Internet of Things (IoT) network, mobility management in IP networks has attracted significant research interest due to certain issues with the frequent motion of mobile nodes (MNs) participating in the handover process. Hierarchical mobile IPv6 (HMIPv6) is one of the protocols proposed to accommodate recurrent mobility of MNs to decrease the signaling amount and improve packet loss issues, by localizing the mobility. HMIPv6 treats micro and macro mobility separately by introducing a new level in mobile IPv6 (MIPv6) with the addition of a node called mobility anchor point (MAP) which significantly improved handover performance specifically in micro-mobility. However, macro mobility yet needed to be improved as it is managed in a way as MIPv6 does. The registration of MN with the new MAP domain is a lengthy process, which leads to longer handover latency with high signaling cost to start proper communication again. Here, we proposed an advance-binding update HMIPv6 (A-BU), a group-based scheme to lessen interdomain handoff latency of IoT MNs. The efficiency of the proposed technique is validated with numerical analysis. The results compared with state-of-the-art mobility protocols illustrate a visible reduction in handover cost, signaling cost and provide seamless packet delivery during group-based interdomain mobility.