Improving lookahead in parallel wireless network simulation
Improving lookahead in parallel wireless network simulation
复制标题
改进并行无线网络仿真中的前瞻
DOI：
10.1109/mascot.1998.693704
复制
发表时间：
1998
期刊：
影响因子：
--
通讯作者：
R. Bagrodia
中科院分区：
文献类型：
--
作者：
R. A. Meyer;R. Bagrodia
由于无线信道的计算密集型模型，对大型移动计算机或其他无线通信设备进行模拟是困难的。由于计算粒度大，并行仿真似乎适用于此，但基于位置的通信拓扑使得保守方法难以实现。本文提出了一种通过区分模拟中的数据流路径来提高保守并行模拟中前瞻性的新方法。一项实验研究表明，对于该应用程序，该技术使空消息流量减少了70%，而空消息计算开销仅增加了25%，并且并行性能得到了一致的提高。
Simulation of large sets of mobile computers or other wireless communication devices is difficult because of the computationally intensive models of wireless channels. Parallel simulation would seem to be applicable here because of the large computation granularity, but the location based communication topology makes conservative methods difficult to implement. This paper considers a novel approach to improving lookahead in conservative parallel simulations by differentiating between data flow paths in the simulation. An experimental study shows that for this application, the technique produces a 70% reduction in null message traffic, with only a 25% increase in null message computation overhead, and a consistent improvement in parallel performance.