BLOCKCHAIN TECHNOLOGY IN 5G NETWORKS

The rapid development of mobile networks and the growth of various types of devices connected to them has called forth the integrity and confidentiality ensuring of the transmitted data that now is a high-priority problem. The emergence of cryptocurrency was followed by renewal of interest in blockchain technology and the possibility of its use in various fields. The paper discusses currently existing methods of blockchain technology application in 5G networks in order to solve security problems, network connectivity and productivity improvement, as well as to develop new directions that expand the capabilities of services and applications in fifth-generation networks. The paper presents analysis of modern research works on the blockchain technology integration and key technologies used in the fifth-generation mobile networks. Particular attention is paid to applications of blockchain technology in cloud computing, edge computing, software-defined networking, virtualization of network functions, 5G-slicing and device-to-device communication. Based on the materials presented in the review, the options are outlined that blockchain technology can provide to 5G mobile networks and services through the use of a decentralized architecture and a smart contract algorithm. The materials of the proposed review is focused on the three main aspects: enhancement of transmitted information security, system performance and resources management. The paper can be useful to specialists and researchers working in the field of information security of the fifth-generation mobile networks, as well as for experts in the field of blockchain technology as an up-to-date overview of various applications of blockchain technology in the fifth-generation networks.