Rethinking Fast Handover in Mobile IPv6 Networks with Enhanced DAR

We investigate existing mobile IPv6 scheme in network layer (e.g., FMIPv6) and in transport layer (e.g., mSCTP) again. We find that FMIPv6 easily causes packet forwarding process of access routers (ARs), buffering overhead, a few handover signaling costs and latencies. We also find that mSCTP can make the mobile client (MC) change its IP address dynamically without connectionless, but itpsilas handover latency and signaling cost can be further reduced and faulty tolerance of MC is neglected. Based on this, first, we make a potential change to mSCTP and propose a scheme named enhanced DAR FMIPv6 (EDAR-FMIPv6) to further reduce handover latency and promote faulty tolerance for MC in mobile IPv6 networks. The result of evaluation shows that the performance of EDAR-FMIPv6 outperforms others.