Open Issues and Future Research Directions for Security and Privacy in 5G Networks

Despite the progress made in 5G wireless security and privacy, there are still numerous challenges and issues that need to be addressed. This chapter aims to identify some of the open issues and outline potential research directions to enhance the security and privacy of 5G wireless networks. Based on recent research activities, the most commonly used attack model in physical layer security involves a single eavesdropper equipped with a single antenna. The increased usage of data in new 5G applications necessitates the transmission of vast amounts of sensitive data through the open network platforms, thereby raising concerns about potential privacy breaches. Additionally, security management for burst access behavior in many devices, such as IoT applications, needs to be studied to support efficient access authentication. In conclusion, as 5G networks continue to enable new applications, novel trust models are required to cater to their security needs and demands.