ABR explicit rate control algorithm based on fuzzy logical control

作者：Ren Feng Yuan^*; Lin Chuang; Wang Fu Bao

来源：Chinese Journal of Computers, 2003, 26(6): 662-668.

• Cell rate
• End to end
• Fuzzy rate control algorithm

Connection oriented ATM network provide pure QoS (Quality of Service) for diversified services through a series of traffic management mechanism. The ABR flow control is especially important among these approaches. Explicit rate control is an effective mechanism. Among the existing algorithms, the effectiveness, fairness and complexity are the main unsolved problems. There for the end-to-end closed-loop feedback rate control used in ABR flows is modeled as a typical regulation system in control theory, and then a novel flow control algorithm based on fuzzy logic control, named fuzzy rate control algorithm (FRCA), is designed, which is independent of the model of the controlled plant. The simulation results show that the FRCA algorithm is able to fairly and effectively allocate the available bandwidth among all active ABR connections; it is applicable to all network configurations, including LAN and WAN; the FRCA algorithm is very powerful in adjusting the queue length to the reference value, and is uncomplicated to be implemented in hardware.

• 出版日期2003
• 单位清华大学