An adaptive deterministic scheduling scheme for WIA-PA industrial wireless networks

As a revolutionary technology in industrial wireless field, Wireless Networks for Industrial Automation-Process Automation (WIA-PA) standard is established by China. Wireless networks are easily disturbed, so enhancing the determinability, the power, stability and real-time of the data communication are more important. An adaptive deterministic scheduling scheme for WIA-PA Networks is presented in the paper. Firstly adaptive Contention Access Period (CAP) phase of WIA-PA superframe is discussed, then superframe and link are established, so adaptive deterministic scheduling scheme can be implemented. The test result shows that the resources of network are allocated effectively. The throughout and the bandwidth utilization are also enhanced.