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28 - STUDENT - MIH vs. ANDSF - Who Will Lead the Radio Access Technologies through the Vertical Handover?

Omar Khattab (University of Salford)

In the ubiquitous networks, The Next Generation Wireless Systems (NGWS) allow the co-existence of different Radio Access Technologies (RATs) such as GSM (Global System for mobile Communication), Wireless Fidelity (WiFi), Worldwide Interoperability for Microwave Access (WiMAX), Universal Mobile Telecommunications System (UMTS) and Long Term Evolution (LTE). One of the challenging issues in NGWS is seamless Vertical Handover (VHO) during the mobility between these technologies; therefore the telecommunication operators will be required to develop a strategy for interoperability of these different types of existing networks to get the best connection anywhere anytime. To fulfill these requirements of seamless VHO two mechanisms were produced independently by IEEE and 3GPP namely Media Independent Handover (MIH) and Access Network Discovery and Selection Function (ANDSF), respectively. Each of them enables a seamless VHO between the different types of technologies (3GPP, non-3GPP) such as, GSM, UMTS, WLAN, WiMAX, and LTE. In our research, we discuss their components, benefits, issues and highlight their drawbacks. Then we nominate MIH to lead RATs by proposing Imperative alternative MIH for Vertical Handover (I AM 4 VHO) approach based on approaches that have been studied in the literature with better performance, less complexity and more exhaustive for enhancing VHO in heterogeneous networks environment.

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