Abstract
If LTE has made it possible to stream music and video over mobile devices such as smartphones and tablets, 5G will enable vehicles, sensors, and other countless devices to interact and share data over the cellular network. To unleash the full potential of 5G, it is imperative to address the shortcomings of LTE in regard to mobility management. One major challenge with LTE is improving the handover performance and security. In order to enhance the performance and security of the handover process, this paper introduces an approach using blockchain for key derivation and key sharing. This novel approach, Blockchain Key Derivation Function (BKDF), ensures tighter security as well as faster handover between the base stations. With blockchain adding an extra layer of security, the network is able to securely derive the handover key and share it with the base stations and mobile devices in the pre-handover phase, which significantly reduces the number of operations required during the intra-handover phase. A formal security analysis on BKDF is conducted with the Burrows-Abadi-Needham (BAN) logic, followed by an analysis on the effectiveness of BKDF against some of the well-known types of network attacks. The simulation results confirm that BKDF reduces handover latency and improves link stability with decrease in packet loss in the intra-handover phase.
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Acknowledgments
We appreciate the financial support from Ministry of Education, Singapore through the Academic Research Fund (AcRF) Tier 1 for the project of 2018-T1-001-092.
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Lee, H., Ma, M. (2019). Blockchain-Based Mobility Management for LTE and Beyond. In: Wang, G., Feng, J., Bhuiyan, M., Lu, R. (eds) Security, Privacy, and Anonymity in Computation, Communication, and Storage. SpaCCS 2019. Lecture Notes in Computer Science(), vol 11611. Springer, Cham. https://doi.org/10.1007/978-3-030-24907-6_4
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DOI: https://doi.org/10.1007/978-3-030-24907-6_4
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