Effects of Packet Fragmentation on QoS Provision for Proxy-Based Mobile IPv6 Traffic Over WiMAX Networks

Handover characteristics over WiMAX networks using PMIPv6 are studied. A special look is taken at the QoS provisioning, that includes an analysis of the effects of the packet size and inter-arrival times on the average delay, the packet dropping rate, and the fragmentation rate. Then, this is followed by a thorough analysis of the sequence of packets exchange during the handover period. Finally, some changes in the PMIpv6 protocol that ought to improve the system performance are suggested, including means of decreasing the number of fragmented packets.