网络模拟中的动态连续计算

Dynamic Continuous Computing in Network Simulation

为降低网络模拟的计算开销,提出了数据包转发模拟的动态连续计算方法。依靠连续计算,该方法提高了数据包转发的模拟性能;依靠动态选择,该方法保证了模拟结果的真实性。通过在NS上的实验表明,与传统的离散事件模拟相比,该方法减少离散事件数80%以上,减少模拟运行时间55%左右,减少存储开销4.6%,而对模拟结果真实性造成的误差平均在0.3%以内。

To reduce the computation time of network simulation,a dynamic continuous computing method for the simulation of packet transmission was proposed.Depending on the continuous computing,this method improves the simulation performance of packet transmission;depending on the dynamical selection,it keeps the accuracy of simulation result.Experiments based on NS show compared to the traditional discrete event network simulation,this method can decrease the number of discrete events by over 80%,the simulation running time by about 55%,and the storage overhead by 4.6%;yet the error of simulation result caused by this method is within 0.3% in average.