A Wireless Network Congestion Control Mechanism based on Price Regulation

Based on the study of data congestion control,a network congestion prediction mechanism based on router buff queue length is proposed,and furthermore,a pricing strategy(PPBC,Per-Packet Billing Control) for control of network congestion is suggested.This mechanism takes the router buffer queue length as the congestion indicator in congestion control mode.Moreover,server predicts the network congestion by Markov modeling in routers and thus acquires the data service cost.Thereupon,a feedback mechanism is constructed between server and data sender,and network congestion level is used to control congestion through pricing strategy.Finally,the simulation on this mechanism with NS2 software indicates that the proposed mechanism could effectively relax the congestion and maintain fairly low network packet-loss rate.