Providing security vertical handoff in SARAH for heterogeneous networks |
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| Authors: | Kyusuk Han Youngjoon Seo Sungjune Yoon James J. Park Taeshik Shon |
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| Affiliation: | aKorea Advanced Institute of Science and Technology (KAIST), 119, Munjiro, Yuseong-gu, Daejeon 305-732, South Korea;bDepartment of Computer Science and Engineering, Seoul National University of Science and Technology, 172, Gongreung 2-dong, Nowon, Seoul, South Korea;cDivision of Information and Computer Engineering, College of Information Technology, Ajou University, Suwon 443-749, South Korea |
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| Abstract: | Vertical handoff is one of the most important issues in the heterogeneous networks. While Lee et al. introduced a selective advance reservations and resource-aware handoff direction (SARAH) mechanism in order to provide a fast and efficient handoff with combination of layer 2 (L2) and layer 3 (L3) communications, there was a drawback that there was no consideration of handoff between heterogeneous network. In this paper, we improve the mechanism by providing security functions such as the neighbor-mapping server that binds IP address and MAC address with security support. At first, we discuss security issues in SARAH and proposed enhanced protocol. Finally, we show simple implementation results of our design in order to verify the practical aspects of our design. |
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| Keywords: | Vertical handoff Security SARAH Mobile IP Authentication |
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