Access Control Mechanism in Wireless Networks

The progress of wireless technology promotes the development and application of global communication industry, and also changes people's life and work style, which is widely used in power system. The increasing demand for communication promotes the further development of communication technology, and new communication systems and technical specifications emerge in endlessly. The future communication network is no longer the evolution of a single technology but the integration of multiple networks, which can complement each other, provide differentiated services for users, and users can also choose the network to achieve the best access according to their own needs. Therefore, in order to meet the diversified QoS requirements of users or power services and maximize the utilization of network resources, the research of network access selection algorithm has become a hot issue. Based on the concept of network access selection, this paper summarizes and compares the access selection algorithms, summarizes the existing problems, and puts forward the future research direction.