Advanced Wireless Technologies for Industrial Automation

With the rapid development of wireless communication technologies, many advanced wireless technologies could be applied to industrial control system to improve the production efficiency. However, spectrum is a kind of very valuable resources in wireless networks. In recent years, with the proliferation of various wireless application devices, spectrum resources in wireless networks have become very scarce. Moreover, with the wide application of wireless communication technology in the industrial field, the demand for spectrum resources dramatically increases with the growth of the amount of exchanged data. The limitation of spectrum resources makes the problem of resource shortage more serious. On the other hand, the coexistence of vast and diverse wireless devices makes the wireless transmission environment in the industrial scene very complicated and volatile. There are a large number of wireless devices in the factory, which makes the environment for using spectrum complex and diverse. In addition, severe multipath fading and electromagnetic interference seriously affect the performance of data transmission in factories. Therefore, the shortage of spectrum resources and the complexity of industrial environment make the development of industrial wireless transmission face severe challenges. This chapter introduces some advanced wireless technologies to this issue.