摘要
地铁环境下下通信信号特性的研究是无线网络规划的重要辅助手段,而目前的研究多集中在隧道环境和高速移动情况,忽略了地铁站地下地上环境变换引起的信号覆盖盲点.针对地铁站环境下水平与垂直移动的通信信号传播特性进行研究,对地铁站内采用越区切换、分隔损耗对信号特性进行研究,在地铁站外,采用对数正态阴影模型来对信号特性进行研究.通过对昆明地铁一号线大学城南站三种典型环境的通信信号进行测试、建模和仿真验证,为网络规划建设提供了理论支持.
The study of communication signal characteristics is of great significance to wireless network in metro environment.However,the current research mostly focuses on the tunnel environment and high-speed movement,ignoring blind pot of signal coverage caused by the alternation of underground and aboveground environment in subway stations.In indoor environment,the signal characteristics are studied by using method of crossover switching and separation loss.In outdoor environment,the lognormal shadow model is used to study the propagating characteristics of signals.In three typical environments of the south station of university town of Kunming metro line 1,we measure,model and simulated verify,to provide theory support for network plan.
作者
陈剑培
CHEN Jian-pei(Faculty of Electrical and Information Engineering,Yunnan Minzu University,Kunming 650500,China;Faculty of Information Science&Technology,Yunnan University,Kunming 650500,China)
出处
《云南民族大学学报（自然科学版）》
CAS
2021年第6期587-591,共5页
Journal of Yunnan Minzu University:Natural Sciences Edition
基金
云南省科技厅重点项目(2018FA036)
国家自然科学基金(61761048).
关键词
地铁站
对数正态阴影模型
越区切换
分隔损耗
metro station
lognormal shadow model
crossover switching
separation loss
