Congestion control for industrial Ethernet using network calculus

The paper presents a new congestion control arithmetic based on the application of the Min- Plus Algebra and Max- Plus Algebra in network analysis,so as to settle the real-time data transmission problem in industrial Ethernet. At first we use the instrument in determinate network calculus theory to study the typical model of the network data stream in industrial Ethernet, through which we can get the real-time arrives curve and service parameters such as the largest network delay; Then with the results,we developed a servicescurve-based strategy of the queue according to the request of network capability when transmit the real-time data. Moreover, we set up a subsection control model to resolve Industrial Ethernet rate wobling and other issues, thus ensuring the stability of information transmission in the real-time control network. Finally, simulate the algorithm with the NS2, and analyse the simulation results to verify the required performance and reliability of the arithmetic.