Optimized network selection during handover using analytic hierarchy process in 4G network

In mobile communication, User Equipment (UE) always demands to be on the network and to perform different errands using applications like file transfer, video streaming and conferencing and other applications like messaging, etc. It needs higher bit rate and hence, UE in recent networks like 4G heterogeneous wireless network continuously use vertical and horizontal handover. For better Quality of Service (QoS) performance network selection is crucial in nature. In this paper, innovative method is used to select the optimal network from available networks that achieves the better QoS performance. The aggregation of multiple criteria for calculation of overall ranking of networks is obtained by Analytical Hierarchy Process (AHP) to resolve the issue of inconsistency. Finally, numerical analysis is conducted in order to determine how the proposed method works to select the network among WLAN, WiMaX and UMTS and confirm its effectiveness.