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Xia, Huiyun, Han, Shuai, Li, Cheng, Meng, Weixiao.  2019.  Joint PHY/MAC Layer AN-Assisted Security Scheme in SVD-Based MIMO HARQ system. 2019 IEEE/CIC International Conference on Communications in China (ICCC). :328–333.
With the explosive data growth arise from internet of things, how to ensure information security is facing unprecedented challenges. In this paper, a joint PHY/MAC layer security scheme with artificial noise design in singular value decomposition (SVD) based multiple input multiple output hybrid automatic retransmission request (MIMO HARQ) system is proposed to resolve the problem of low data rates in existing cross-layer security design and further adapt to the high data rate requirement of 5G. First, the SVD was applied to simplify MIMO systems into several parallel sub-channels employing HARQ protocol. Then, different from traditional null space based artificial noise design, the artificial noise design, which is dependent on the characteristics of channel states and transmission rounds, is detailed presented. Finally, the analytical and simulation results proved that with the help of the proposed artificial noise, both the information security and data rate performance can be significantly improved compared with that in single input single output (SISO) system.
de Matos Patrocínio dos Santos, Bernardo, Dzogovic, Bruno, Feng, Boning, Do, Van Thuan, Jacot, Niels, van Do, Thanh.  2019.  Towards Achieving a Secure Authentication Mechanism for IoT Devices in 5G Networks. 2019 6th IEEE International Conference on Cyber Security and Cloud Computing (CSCloud)/ 2019 5th IEEE International Conference on Edge Computing and Scalable Cloud (EdgeCom). :130–135.

Upon the new paradigm of Cellular Internet of Things, through the usage of technologies such as Narrowband IoT (NB-IoT), a massive amount of IoT devices will be able to use the mobile network infrastructure to perform their communications. However, it would be beneficial for these devices to use the same security mechanisms that are present in the cellular network architecture, so that their connections to the application layer could see an increase on security. As a way to approach this, an identity management and provisioning mechanism, as well as an identity federation between an IoT platform and the cellular network is proposed as a way to make an IoT device deemed worthy of using the cellular network and perform its actions.

Zhang, Z. G., Wen, H., Song, H. H., Jiang, Yixin, Zhang, J. L., Zhu, Xiping.  2016.  A MIMO cross-layer secure communication scheme based on spatial modulation. 2016 IEEE Conference on Communications and Network Security (CNS). :350–351.

A cross-layer secure communication scheme for multiple input multiple output (MIMO) system based on spatial modulation (SM) is proposed in this paper. The proposed scheme combined the upper layer stream cipher with the distorted signal design of the MIMO spatial modulation system in the physical layer to realize the security information transmission, which is called cross-layer secure communication system. Simulation results indicate that the novel scheme not only further ensure the legitimate user an ideal reception demodulation performance as the original system, but also make the eavesdropper' error rate stable at 0.5. The novel system do not suffer from a significant increasing complexity.

Li, W., Ji, J., Zhang, G., Zhang, W..  2016.  Cross-layer security based on optical CDMA and algorithmic cryptography. 2016 IEEE Optoelectronics Global Conference (OGC). :1–2.

In this paper, we introduce an optical network with cross-layer security, which can enhance security performance. In the transmitter, the user's data is encrypted at first. After that, based on optical encoding, physical layer encryption is implemented. In the receiver, after the corresponding optical decoding process, decryption algorithm is used to restore user's data. In this paper, the security performance has been evaluated quantitatively.

Farag, M.M., Azab, M., Mokhtar, B..  2014.  Cross-layer security framework for smart grid: Physical security layer. Innovative Smart Grid Technologies Conference Europe (ISGT-Europe), 2014 IEEE PES. :1-7.

Security is a major challenge preventing wide deployment of the smart grid technology. Typically, the classical power grid is protected with a set of isolated security tools applied to individual grid components and layers ignoring their cross-layer interaction. Such an approach does not address the smart grid security requirements because usually intricate attacks are cross-layer exploiting multiple vulnerabilities at various grid layers and domains. We advance a conceptual layering model of the smart grid and a high-level overview of a security framework, termed CyNetPhy, towards enabling cross-layer security of the smart grid. CyNetPhy tightly integrates and coordinates between three interrelated, and highly cooperative real-time security systems crossing section various layers of the grid cyber and physical domains to simultaneously address the grid's operational and security requirements. In this article, we present in detail the physical security layer (PSL) in CyNetPhy. We describe an attack scenario raising the emerging hardware Trojan threat in process control systems (PCSes) and its novel PSL resolution leveraging the model predictive control principles. Initial simulation results illustrate the feasibility and effectiveness of the PSL.