HPMIPv6: Hierarchical Proxy MIPv6 in 6LoWPAN Wireless Sensor Network

Network-based mobility management protocol PMIPv6 is appropriate for for low-power characteristic 6LoWPAN Wireless Sensor Network(WSN), in which nodes is not needed to be involved into mobility management related signal interactions, which effectively reduce the energy consumption of mobile nodes. However, PMIPv6 machenism did not facilitate of 6LoWPAN feature that the nodes mobility is most of Micro-Movement. The paper presents a Hierarchical Proxy MIPv6 (HPMIPv6) which separates the management of Intra-Domain Mobility and Inter-Domain Mobility, and focuses on optimizing the process of Intra-Domain Mobility. Simulations showed that HPMIPv6 significantly increase the processing efficiency of Intra-Domain Mobility and reduce the Intra-Domain handoff delay.