We discuss the use of angle of arrival (AoA) as an authentication measure in analog array multiple-input multiple-output (MIMO) systems. A base station equipped with an analog array authenticates users based on the AoA estimated from certified pilot transmissions, while active attackers manipulate their transmitted signals to mount impersonation attacks. We study several attacks of increasing intensity (captured through the availability of side information at the attackers) and assess the performance of AoA-based authentication using one-class classifiers. Our results show that some attack techniques with knowledge of the combiners at the verifier are effective in falsifying the AoA and compromising the security of the considered type of physical layer authentication.

AoA-Based Physical Layer Authentication in Analog Arrays under Impersonation Attacks / Srinivasan, Muralikrishnan; Senigagliesi, Linda; Chen, Hui; Chorti, Arsenia; Baldi, Marco; Wymeersch, Henk. - (2024), pp. 203212.496-203212.500. (Intervento presentato al convegno 25th IEEE International Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2024 tenutosi a Lucca, Italy nel 10-13 September 2024) [10.1109/SPAWC60668.2024.10694672].

AoA-Based Physical Layer Authentication in Analog Arrays under Impersonation Attacks

Senigagliesi, Linda;Baldi, Marco;
2024-01-01

Abstract

We discuss the use of angle of arrival (AoA) as an authentication measure in analog array multiple-input multiple-output (MIMO) systems. A base station equipped with an analog array authenticates users based on the AoA estimated from certified pilot transmissions, while active attackers manipulate their transmitted signals to mount impersonation attacks. We study several attacks of increasing intensity (captured through the availability of side information at the attackers) and assess the performance of AoA-based authentication using one-class classifiers. Our results show that some attack techniques with knowledge of the combiners at the verifier are effective in falsifying the AoA and compromising the security of the considered type of physical layer authentication.
2024
979-8-3503-9318-7
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11566/336476
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