EPN-based Congestion Pricing Mechanism
一种基于EPN的拥塞价格机制

The basic reason of network congestion is the demand of user exceeds the supply of resource. In price mechanism, price is waved with the relation between supply and demand and on the other side effect the supply of user, so it can balance load and control congestion in network. In this paper, a kind of congestion price mechanism based on EPN(Explicit Price Notification) is proposed, which reflects the change of user demand through the relation between the average queue length of route and queue threshold, and transmit the information of price adjustment to user very quickly, in order to promote user to make the sound decision on resource and then to keep the network in high throughput and low congestion state. And by means of simulation, the influence of queue threshold to network efficiency is analyzed.