Intelligent Integrated Cross-layer Authentication for Efficient Mutual Verification in UDN with Guaranteed Security-of-Service
He Fang, Xianbin Wang, Wenrun Zhu · 2022
While conventional cryptographic authentication methods suffer from high computation overhead and long latency in ultra-dense networks (UDNs), physical (PHY) layer authentication techniques often fail to serve as substitutions due to their unreliable performance in the dynamic environment. This paper proposes an intelligent integrated cross-layer authentication scheme by combining PHY layer method and cryptographic based authentication and key agreement (AKA) method to unify their strengths for achieving efficient mutual verification with guaranteed Security-of-Service (SoS). In the proposed scheme, an intelligent switch module is designed to select the real-time optimal authentication method based on the performance evaluation of different methods for better secure provision and communication performance. Moreover, a situation-aware attribute selection algorithm is developed to select the optimal attribute for PHY layer method to further improve the authentication reliability in the dynamic communication environment. Our results demonstrate that the proposed scheme can achieve more efficient mutual verification with guaranteed SoS than the existing schemes.