| dc.description.abstract | Various types of wireless access technologies, such as 2G, 3G, and Wi-Fi, have been developed recently. Due to the popularity of these wireless access networks, people can connect to the Internet everywhere at any time. Different kinds of wireless access technologies have different transmission characteristics, some of them may be suitable for high-speed or provide a greater bandwidth, and some may have wider coverage. Carriers deploy those technologies according to different environment and application needs.
The next generation wireless network technology, such as IEEE 802.16e (Mobile WiMAX) and 3GPP release 8 Long Term Evolution (LTE), provides users with greater bandwidth and supports mobility capability to accomplish many network services in more convenient and efficient way.
IEEE 802.21 (MIH) provides the concept of using common interface for intelligent mobility assistance between different access technologies and to achieve efficient handoff. Users can be able to smoothly switch among various types of network, and the system management system can flexibly allocate valuable radio resources.
This thesis focuses on the mobility control on the heterogeneous wireless access network, WiMAX and LTE, by using the MIH heuristic. We adopt the information provided by MIH server to choose proper base stations (BS) list to save users scanning time, and propose an effective algorithm for handoff decision. Our simulation results show that the proposed schemes can effectively meet the above objectives.
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