无线网络规划中绕射损耗算法的分析  

The Analysis of Diffraction Loss Algorithms in Wireless Network Planning

作　　者：金明岩[1] 桑林[2] 

机构地区：[1]北京邮电大学信息与通信工程系 [2]北京邮电大学

出　　处：《现代电信科技》2012年第7期32-37,共6页Modern Science & Technology of Telecommunications

摘　　要：绕射损耗对无线网络规划影响很大,而不同算法求得的绕射损耗可能存在很大差异。文章对比分析各绕射损耗算法的差异,提出了一种能够根据特定地理条件自适应选择最优绕射算法的方法。该方法通过逐个分析各地理条件对绕射算法的影响,最终得出在各种地理条件下选取何种绕射算法模型能够更为准确地求得相应地理场景的绕射损耗。简要介绍了各模型计算绕射损耗的方法,对常见的多峰模型进行了解释。基于实际地理条件下多为多峰场景,对多峰模型进行了仿真分析。The diffraction loss has a great influence on the wireless network planning,while there may be a big difference between different algorithms.This paper analyzes the difference between the algorithms,proposing a way which could select the optimal diffraction algorithm by the geographical conditions adaptivly.The way could obtain the algorithm by analyzing the affect of the geographical conditions on diffraction loss.The paper introduces the algorithms briefly and explains the multi-peak model.As the actual geographical conditions are usually multi-peak model,our simulation and analysis are based on the multi-peak model.

关 键 词：传播损耗 绕射损耗 多峰衍射模型 无线网络规划 

分 类 号：TN929.533[电子电信—通信与信息系统]