光纤激光网络被入侵后的最优通信节点选取方法研究

Research on optimal Communication node selection method of optical fiber laser network after intrusion

当前的光纤激光网络最优通信节点选取方法存在定位误差高、运算效率低以及通信消耗高等问题。因此,为了增强光纤激光网络被入侵后的通信质量,提出基于改进Voronoi图的最优通信节点选取方法,其通过加权Voronoi图方法获取最优通信节点位置。分析了Voronoi图的基本塑造原理,塑造基于加权Voronoi图的定位模型。对光纤激光网络中未知节点采集到的RSSI值进行降序排列,将节点权重赋值给对应的值,通过节点多跳信息完成分布式运算,运算各参照节点的加权Voronoi图,采用加权Voronoi图定位算法运算参照节点的加权区域以及加权Voronoi图的交集,将交集的质心则是最优通信节点。实验结果说明,所提方法的定位效率和抗燥性较高,可提高光纤激光网络的通信效率。

the current selection method of optimal communication nodes in optical fiber laser networks has the problems of high positioning error, low operation efficiency and high communication consumption. Therefore, in order to enhance the quality of the optical fiber laser network after the intrusion, the Optimal communication node selection method based on the improved Voronoi graph is proposed, through the weighted Voronoi Graph method obtains the optimal communication node position, analyzes the basic shaping principle of the Voronoi graph and shapes the positioning model based on the weighted Voronoi graph, the RSSI values collected by unknown nodes in the optical fiber laser network are sorted in descending order, the node weights are assigned to the corresponding values, the distributed operation is accomplished by the node multi-hop information, and the weighted Voronoi graph of each reference node is calculated, uses the weighted Voronoi graph to locate the weighted area of the reference node and the intersection of the weighted Voronoi graph, and the centroid of the intersection is the optimal communication node. Experimental results show that the proposed method can improve the communication efficiency of optical fiber laser network because of its high positioning efficiency and higher resistance to dryness.