一种基于无线网络仿真的路测方法

路测是无线网络性能评估中的常用方法。分析了一般路测方法存在的抽样误差问题，为降低抽样误差，提高路测数据的代表性，引入分层抽样。对地图中地理单元提取了进行分层的相关属性，采用聚类分析方法中的Birch和K-means算法，对地理单元进分层，并对分层效果采用无线网络仿真结果进行验证。根据无线网络仿真结果，模拟路测抽样，证明该方法可以有效地评估移动通信网络的性能。

Method of Field Test Based on Simulating of Wireless Network

Field test is the general method in the evaluation of performance of wireless network.The sample error of general field test method was analyzed.In order to reduce the sample error and improve the representation of field test data,the stratified sampling was introduced.The characters of strata for the bins in digital map were extracted,and then the bins' strata were estimated by Birch and K-means algorithm of cluster analysis;at last,the effect of stratified sampling was validated by wireless network simulating.Field test was simulated according to wireless network simulating.The results show that the algorithm can evaluate the performance of mobile communication network effectively.