A New Fuzzy Congestion Control Algorithm in Computer Networks

Recently, the number of internet users is increasing therefore transferred data is also increased and routers should transfer much more packets. Congestion occurs when arrival rate to the router is greater than its departure rate; furthermore for solving this problem, it is necessary to design an effective queue management algorithm. According to dynamic of input packets and different packet priorities queue management becomes very complex. For this reason, it is better to use an intelligent algorithm. In this paper we use a fuzzy controller called Fuzzy-Multiple Queue Management (MQM) for solving the mentioned problem. In this controller sender and receiver routers communicate with each other for balancing the rate of transferred packets. The Fuzzy-MQM algorithm is also compared with the Multiple Queue Management algorithm and simulation results show that proposed algorithm has better performance, throughput and also low packet loss.