Adopting Handoff Techniques in Real Time Mobile Network Technologies

Abstract

Next-generation wireless networks relying on heterogeneous technologies allow the users to be connected to varied networks. The Mobile Internet Protocol (Mobile IP) is an extension to the Internet Protocol proposed by the Internet Engineering Task Force (IETF) that addresses the mobility issues. In order to support un-interrupted services and seamless mobility of nodes across the networks (and/or sub-networks) with permanent IP addresses, handover is performed in mobile IP enabled networks. Mobile WiMAX, in the past few years has become one of the most important technologies Mobility brings with it the need of handovers which occur when a user moves from one cell to the other. Handover is considered as a highly important issue in mobile WiMAX. Vertical Handoff (VHO) is one of the major issues which need to be addressed for providing better QoS. The vertical HO scenario introduces issues related to QoS which affects the connections as well as the applications. This paper shows different conditions which are responsible for a handoff process by comparing handoffs in different mobile networks. This paper shows the accuracy in different conditions of Handoff decision and the path traversed by the Handoff decision process.