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Network-assisted handover for heterogeneous wireless networks

By: Mambrini, R.; Galeassi, F.; Cicconetti, C.;

2010 / IEEE / 978-1-4244-8865-0


This item was taken from the IEEE Conference ' Network-assisted handover for heterogeneous wireless networks ' The IEEE 802.21 is a recent standard for enabling handover in heterogeneous wireless networks, which defines protocols and messages for mobile-to-node and node-to-node communication in a technology-neutral and flexible manner. The need arises because of the widespread diffusion of different technologies for wireless communications (e.g., WiFi, WiMAX, LTE), which are often coexisting in the same geographical area and supported by the same mobile device, but seldom interoperable. In this paper we propose the architecture of a Media Independent Information Service (MIIS) and the detailed procedures for a network-assisted handover, which are left unspecified by the standard, aimed at reducing the energy consumption of mobile nodes due to scanning. Testbed results are reported to show the effectiveness of the proposed solution with COTS devices.