I Am 4 Vho: New Approach to Improve Seamless Vertical Handover in Heterogeneous Wireless Networks

Download Now Date Added: May 2013
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Two mechanisms have been proposed independently by IEEE and 3GPP; namely, Media Independent Handover (MIH) and Access Network Discovery and Selection Function (ANDSF), respectively. These mechanisms enable a seamless Vertical HandOver (VHO) between the different types of technologies (3GPP and non-3GPP), such as GSM (Global System for Mobile Communication), Wireless Fidelity (Wi-Fi), Worldwide interoperability for Microwave Access (WiMAX), Universal Mobile Telecommunications System (UMTS) and Long Term Evolution (LTE). In this paper, the authors overview these mechanisms and show their components, benefits and drawbacks.