Reduced packet loss vertical handover between LTE and mobile WiMAX

This paper represents the network architecture for seamless vertical handover between Long Term Evolution (LTE) and Mobile Worldwide Interoperability for Microwave Access (WiMAX). The proposed network model for this architecture was examined by OPNET modeler. Two handover scenarios (WiMAX to LTE and LTE to WIMAX) were considered in this research. Performance of handover in terms of the two parameters of packet loss and throughput were examined. Decrease in throughput versus increase in handover delay time was observed. An inverse trend between the packet loss and handover delay time was obtained as well. And also introduced a new parameter in a gateway node between the networks which reduced the packet loss during handover.