Load Balancing for Proxy Mobile IPv6 Networks

In proxy mobile IPv6 (PMIPv6), a new entity called mobile access gateway (MAG) performs the mobility-related signaling with the local mobility anchor (LMA) on behalf of the mobile node (MN) and establishes a tunnel with the LMA. However, a number of MNs must be associated with a MAG and hence, the MAG can be easily overloaded. Therefore, in this paper, we propose a load balancing mechanism among the MAGs in the PMIPv6 network. Simulation results show that the propose load balancing mechanism can achieve low queuing delay at the MAGs in the PMIPv6 network.