Abstract
One challenge of wireless networks integration is the ubiquitous wireless access abilities which provide the seamless handover for any moving communication device between different types of technologies (3GPP and non-3GPP) such as Global System for Mobile Communication (GSM), Wireless Fidelity (Wi-Fi), Worldwide Interoperability for Microwave Access (WiMAX), Universal Mobile Telecommunications System (UMTS) and Long Term Evolution (LTE). This challenge is important as Mobile Users (MUs) are becoming increasingly demanding for services regardless of technological complexities associated with it. To fulfill these requirements for seamless Vertical Handover (VHO) two main interworking architectures have been proposed by European Telecommunication Standards Institute (ETSI) for integration between different types of technologies; namely, loose and tight coupling. On the other hand, Media Independent Handover IEEE 802.21 (MIH) is a framework which has been proposed by IEEE Group to provide seamless VHO between the aforementioned technologies by utilizing these interworking architectures to facilitate and complement their works. The paper presents the design and the simulation of a Mobile IPv4 (MIPv4) based procedure for loose coupling architecture with MIH to optimize performance in heterogeneous wireless networks. The simulation results show that the proposed procedure provides seamless VHO with minimal latency and zero packet loss ratio.
Highlights
With the advancement of wireless communication and computer technologies, mobile communication has been providing more versatile, portable and affordable networks services than ever
To fulfill these requirements of seamless Vertical Handover (VHO) two main interworking architectures have been proposed by European Telecommunication Standards Institute (ETSI); namely, loose and tight coupling for integration between the different types of technologies
After the analysis of the results in previous work [12], the simulation has applied the proposed procedure of loose coupling in conjunction with Mobile IPv4 (MIPv4) taking into account the handover signaling time in the execution phase and Radio Signal Strength (RSS) going down in order to make VHO decision
Summary
With the advancement of wireless communication and computer technologies, mobile communication has been providing more versatile, portable and affordable networks services than ever. It has been reported that “today, there are billions of mobile phone subscribers, close to five billion people with access to television and tens of millions of new internet users every year” [1] and there is a growing demand for services over broadband wireless networks due to diversity of services which can’t be provided with a single wireless network anywhere anytime [2] This fact means that heterogeneous environment of wireless networks, such as Global System for Mobile Communication (GSM), Wireless Fidelity (Wi-Fi), Worldwide Interoperability for Microwave Access (WiMAX). 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 main interworking architectures have been proposed by European Telecommunication Standards Institute (ETSI); namely, loose and tight coupling for integration between the different types of technologies.
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