Extended Mobile IPv6 Route Optimization for Mobile Networks in Local and Global Mobility Domain

Network mobility NEMO route optimization support is strongly demanded in next generation networks; without route optimization the mobile network e.g., a vehicle tunnels all traffic to its Home Agent HA. The mobility may cause the HA to be geographically distant from the mobile network, and the tunneling causes increased delay and overhead in the network. It becomes peculiar in the event of nesting of mobile networks due to pinball routing, for example, a Personal Area Network PAN inside a vehicle. The authors propose an Extended Mobile IPv6 route optimization EMIP scheme to enhance the performance of nested mobile networks in local and global mobility domain. The EMIP scheme is based on MIPv6 route optimization and the root Mobile Router MR performs all the route optimization tasks on behalf of all active Mobile Network Nodes MNNs. Thus, the network movement remains transparent to sub MRs and MNNs and modifies only MRs and MNNs leaving other entities untouched and is more efficient than the Network Mobility Basic Support protocol NEMO BS. The authors carried out an extensive simulation study to evaluate the performance of EMIP.