Fast Handover for Mobile IPv6 over IEEE 802.16e Networks

IEEE 802.16e adds mobility support to the IEEE 802.16 standard so that terminals can move while receiving services and preserve ongoing IP sessions during handover. IP layer handover for MSs is handled by MIPv6. The cross-layer scheme supports seamless handover by exploiting the link layer handover indicator and designing interleaving scheme of the 802.16e and the FMIPv6 handover procedures. We propose an optimized cross-layer scheme supporting fast handover for MIPv6 over IEEE 802.16e environment. We evaluate the performance of the original scheme and the proposed scheme in terms of the signaling cost and handover latency by using the packet-level traffic model, system mode land mobility model. From the results of the performance evaluation, we can expect that the proposed scheme supports fast handover for MIPv6 insusceptible of the new address confirmation latency.