Implementation and performance study of IEEE 802.21 in integrated IEEE 802.11/802.16e networks

Authors:
Wan-Seon Lim;Dong-Wook Kim;Young-Joo Suh;Jeong-Jae Won
Affiliations:
Departments of Computer Science and Engineering, Pohang University of Science and Technology (POSTECH), Pohang 790-784, Republic of Korea;Departments of Computer Science and Engineering, Pohang University of Science and Technology (POSTECH), Pohang 790-784, Republic of Korea;Departments of Computer Science and Engineering, Pohang University of Science and Technology (POSTECH), Pohang 790-784, Republic of Korea;Telecommunication and Network R&D Center, Samsung Electronics Co., LTD., 416, Maetan-3dong, Suwon 443-742, Republic of Korea
Venue:
Computer Communications
Year:
2009

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Abstract

In this paper, we propose a framework for the implementation of the IEEE 802.21 Media Independent Handover (MIH) standard and evaluate its performance through experiments in integrated 802.11/802.16e networks. The IEEE 802.21 standard defines three types of MIH services (event, command, and information) that facilitate the mobility management and handover process in heterogeneous networks. To support MIH services, we develop a MIH-capable mobile node and the MIH information service server. Then, we introduce the Connection Manager (CM) which utilizes MIH services. Two main roles of CM are supporting seamless vertical handovers and efficient access point (AP) discoveries. From the experimental results in the real test-bed, we can know that the MIH services can be used to reduce packet losses during a vertical handover and to reduce the AP discovery time and energy consumption of mobile nodes.