电讯技术2016，Vol.56Issue(5)：544-550,7.DOI:10.3969/j.issn.1001-893x.2016.05.012
基于射线跟踪的小区信号强度估计
Cellular Signal Strength Estimation Based on Ray Tracing
张喆 1张杰斌 1周欣欣 2高强1
作者信息
- 1. 北京航空航天大学 电子信息工程学院，北京100191
- 2. 浙江电信金华分公司，浙江 金华321000
- 折叠
摘要
Abstract
The estimation method based on empirical model which canˊt be used to estimate in specific sce-narios is not accurate and can’ t be used in network planning and optimization of mobile communication. Although ray tracing technique can track electromagnetic wave according to the scenario information,com-mon inverse tracing method with high complexity is not suitable for the estimation of outdoor signal strength. To improve the accuracy and reduce the complexity,an estimation method based on forward trac-ing is achieved. Firstly,the electromagnetic wave from base station antenna is simplified into discrete ray. Secondly,with the information of building’ s shape and distribution,each ray is tracked using the search method based on grid. Thirdly, the ray is received and merged at the receiver, after which the signal strength distribution is acquired. The simulation results show that the estimation result of proposed method is more accurate than that of empirical model and the error between eighty percent of estimation result and measured data is within 12 dBm, therefore the proposed method can be used in network planning and optimization.关键词
移动通信/网络优化/信号强度估计/射线跟踪/射线接收Key words
mobile communication/network optimization/signal strength estimation/ray tracing分类
信息技术与安全科学引用本文复制引用
张喆,张杰斌,周欣欣,高强..基于射线跟踪的小区信号强度估计[J].电讯技术,2016,56(5):544-550,7.
