Real-Time Cluster Resources Scheduling Strategy in WIA-PA Networks

WIA-PA network is a kind of multi-hop wireless network, which is specially designed for industrial process automation control. It uses hybrid management pattern with star and mesh structure. Intra-cluster and inter-cluster communication is scheduled simultaneously based on TDMA as well as FDMA. In this paper, a real-time cluster resources scheduling strategy for WIA-PA networks is proposed and the specific algorithm is implemented by edge-coloring. Our algorithm combines with optimal routing mechanism and arranges the order of links reasonably, resulting in avoiding conflict and improving the original communication success rate. Furthermore, the algorithm makes full use of channel resources, which greatly reduces end-to-end delay. The performance analysis shows that our algorithm is close to optimal for WIA-PA networks. In addition, compared with RSCA algorithm, our algorithm has lower latency and higher network throughput.