A Vertical Handover Approach Using GTMA in Wireless Networks

Abstract

AbstractThe smooth transfer of user services from an existing network to a new network in vertical handover for providing better quality of experience (QoE) to the users is a challenging task in the field of mobility management. To achieve that level of the QoE, the subscribers of heterogeneous networks may be forced to change the access network or the network operator. For better user experience, network parameters like throughput, packet loss rate (PLR), cost, jitter, and delay, etc., are considered in vertical handover decisions. In this paper, a graph theory and matrix approach (GTMA) based on a multi-attribute decision-making (MADM) mechanism is proposed for the ranking of the candidate networks to handle the issues in vertical handover. The numerical analysis of the proposed approach is performed using conversational traffic in heterogeneous networks. The proposed approach is compared with gray rational analysis (GRA), and the comparative results have revealed that proposed approach is superior to GRA.KeywordsGTMAQoEVertical handoverMobility managementMADM