An Approach to Efficient and Reliable design in Hierarchical Mobile IPv6

As the demand for wireless mobile devices capable of executing real-time applications increases and as the number of mobility users grows, the Mobile IP has necessitated the development of better handoff techniques, for providing seamless handoff, namely, a packet lossless Quality of Service (QoS) guarantee. The Hierarchical Mobile IPv6 (HMIPv6), is to enhance the Mobile IPv6, is designed to resolve these issues. The MIPv6 protocol handles local and global user mobility equally. Therefore it may lead to some problems like lost data packet and inefficient network bandwidth use when a mobile node is handoff frequently in local area. But the HMIPv6 is planned to reduce the amount of signaling that is required for managing user movement within the mobile network using a new mobility agent, which is called mobile anchor point (MAP). However, since the home agent (HA) and the mobile anchor point (MAP) are main points of failure and performance bottlenecks. In this paper, we propose an approach to efficient and reliable design in Hierarchical Mobile IPv6. In order to remove performance bottlenecks for the MAP, at first, we proposed a load balancing scheme in distributed MAP environment. We are only present appropriated a design adopting load balancing, but we do not present specific methods. And next, we proposed an enhanced Robust Hierarchical Mobile IPv6 (RH-MIPv6). The RH-MIPv6, which is provided by our previous work, supports survivability and fault tolerance with the existing HMIPv6. By these approaches, it is possible to efficient and reliable design for HMIPv6. By simulation, we confirm that our proposed the approach design is efficient and reliable about HMIPv6.