Logvegas: congestion control mechanism based on Vegas in high-speed long-distance networks
Zhao Qin · Journal of Hefei University of Technology · 2009
TCP Vegas is a well-known transport control protocol,which can detect network congestion in the early stage and successfully prevent periodic packet loss.However,TCP Vegas congestion control may function poorly in high bandwidth-delay product networks because of its sluggish response with large congestion windows after a packet loss.In this paper,an improved version of TCP Vegas called Logvegas is proposed,which is based on the history window size and allows a logarithmic congestion window to recover after a packet loss occurs.Extensive simulations carried out by using ns2 show that Logvegas can gain better TCP performance than TCP Vegas.