Target Rate Based Arithmetic Design on Network Fairness

Connection-oriented TCP flows and non-connection-oriented UDP flows have different response manners to the congestion indication while the network congestions are arisen, which makes for the unfair usage to the network resources. The proposed algorithm, called Modified Random Early Detection(MRED), is a tiny modified algorithm to the existed Random Early Detection. Firstly, MRED compares the send rate upbound of the TCP throughput modal with the tartet rate of the UDP flows, and then the relation curves can be gained about throughput and packets drop probability. Secondly, by controlling the packets drop probability on the network nodes, the throughput of the UDP flows can be adjusted and transforms the response manners to the network congestion. At last, simulation results show that MRED algorithm can increase the fairness of the network resources share.