O-PMIPv6: Efficient Handover with route optimization in Proxy Mobile IPv6 domain

Proxy Mobile IPv6 (PMIPv6) has been developed by the IETF as a network-based mobility management protocol to support the mobility of IP devices. Although several proposals have been made for localized routing optimization, they don´t take into account handover management and localized routing simultaneously. In fact, the localized routing state is only restored after the handover, leading to packet loss and signaling overhead. On the other hand, Fast Handovers for PMIPv6 (F-PMIPv6) protocol has been designed to mainly solve the issues of long handover delay and packets loss during handover. As a result, this paper looks at enhancing F-PMIPv6 by combining the handover with route optimization by proposing a new protocol called Optimized Proxy Mobile IPv6 (O-PMIPv6). The proposed protocol enhances the performance of PMIPv6 and F-PMIPv6 in terms of route optimization handover delay, signaling cost, and network utilization.