In order to get more accurate network congestion state, flow rate ri and burstiness bi of the contention flows are added into the adjacency matrix, with the form of (εri + βbi)Asi,di , where ε and β are the impact factor of ri and bi of the target flow i, respectively (shown in line 7 of Algorithm 1). With this expression, different contention flows will bring different effects to target flow, for they have different ri and bi. Here we assume f to be a contention flow, and ε = β = 1 for the convenience of discussion. If the arrival curve of flow f is α = 0.2t+1, then the improved version of adjacency matrix is