TCP flow control for maximum throughput and QoS guarantee

The author proposes a flow control for a TCP connection which determines the packet sending rate so as to maximize a performance measure function for the fairness, throughput and packet loss ratio. The performance is examined for the TCP packet network by theoretical analysis and computer simulation, and it is shown that the proposed method is optimal and fair, and that almost the maximum throughput is obtained with a packet loss ratio of less than the required value, even if the packet network does not guarantee QoS.