With the great success and development of 4G mobile networks, it is expected that the 5th generation wireless systems (in short 5G) will be a continued effort toward rich ubiquitous communication infrastructure, promising a wide range of high-quality services. It is envisioned that 5G communication will offer significantly greater data bandwidth and an almost infinite capability of networking resulting in unfaltering user experiences for, among others, virtual/augmented reality, massive content streaming, telepresence, user-centric computing, crowded area services, smart personal networks, Internet of Things (IoT), smart buildings, and smart cities.
5G communication is currently at the center of attention for industry, academia, and government worldwide. 5G drives many new requirements for different network capabilities. As 5G aims to utilize many promising network technologies, such as software-defined networking (SDN), network functions virtualization (NFV), information-centric network (ICN), network slicing, cloud computing, etc. and supporting a huge number of connected devices integrating advanced technologies and innovating new techniques will surely bring tremendous challenges for security, privacy, and trust. Therefore, secure network architectures, mechanisms, and protocols are required as the basis for 5G to address these issues and follow security-by-design approaches. Finally, since in 5G networks even more user data and network traffic will be transmitted, big data security solutions should be considered in order to address the magnitude of the data volume and ensure data security and privacy.