Resource Allocation Mechanism for Broadband Industrial Wireless Networks

In recent years, wireless technology continues to evolve rapidly, as well as industrial wireless network. Traditional network architecture no longer meets the needs of emerging industrial scenarios. In order to meet the application requirements for high-bandwidth data transmission, a broadband industrial mesh network is proposed. It uses a mesh network structure and Orthogonal Frequency Division Multiple Access (OFDMA) as the multiple access scheme. As the industrial wireless network places high demands on network load balancing, effective resource allocation is required to meet the ever-increasing application demands and load balancing. It is still an open issue on how to balance the network load and maximize the throughput through proper resource scheduling. In this paper, a resource allocation model based on an industrial broadband wireless network is established with the goal of maximizing throughput. Based on this model, a two-stage design scheme for the resource allocation algorithm is proposed. By taking the link load ratio as a constraint, the network load balance is ensured and the throughput is maximized. Experimental results show that the performance of this algorithm is better than other throughput maximization algorithms that do not consider load balancing.