An algorithm to Achieve queue fairness

Active queue management(AQM)is one of the main congestion control methods in IP network,and Random Early Detection(RED)is a efficient AQM algorithm based on routers by IETF recommended.But different packet size is one of the reasons that damage fairness using RED algorithm in some network environment,it make some bulky data flows use considerably more bandwidth than other flows in a time of congestion.An EF-RED(Enhanced-Fairness RED)algorithm is proposed to improve fairness of RED based on maximum sending rate of TCP connection.A sequence of simulation experiments indicate that EF-RED can efficient avoid the effect of different packet size for TCP connections.