地铁地下人行通道场景无线信道大尺度衰落特性研究  

Research on Largescale Fading Characteristics of Wireless Channel in Subway Underground Pedestrian Passage Scenario

作　　者：杨汨 柴金川 李毅 高闯 Yang Mi;Chai Jinchuan;Li Yi;Gao Chuang(Beijing Jiaotong University,Key Laboratory of Railway Industry of Broadband Mobile Information Communication,Beijing 100044,China;Beijing Jiaotong University,Beijing Engineering Research Center of High-speed Railway Broadband Mobile Communications,Beijing 100044,China;China Academy of Railway Sciences,National Railway Track Test Center,Beijing 100015,China;China Academy of Railway Sciences Corporation Limited,Signal and Communication Research Institute,Beijing 100081,China;China Railway Jinan Group Co.,Ltd.,Ministry of Science,Technology and Information Technology,Jinan,Shandong 250031,China)

机构地区：[1]北京交通大学宽带移动信息通信铁路行业重点实验室,北京100044 [2]北京交通大学北京市高速铁路宽带移动通信工程技术研究中心,北京100044 [3]中国铁道科学研究院集团有限公司国家铁道试验中心,北京100015 [4]中国铁道科学研究院集团有限公司通信信号研究所,北京100081 [5]中国铁路济南局集团有限公司科技和信息化部,山东济南250031

出　　处：《铁道技术标准（中英文）》2022年第8期26-31,共6页Railway Technical Standard(Chinese & English)

基　　金：中国铁道科学研究院集团有限公司科研开发基金(2021YJ232);中国铁道科学研究院集团有限公司青年专项(2021YJ092);国家自然科学基金(62171021,62101026);国家铁路局课题研究计划(KF2021-003);中国国家铁路集团有限公司科技研究开发计划(P2020G004,SY2021G001,P2021G012,N2021G030)。

摘　　要：无线通信系统在城市轨道交通建设和运营中起到了重要作用。无线信道特征的刻画和建模是轨道交通无线网络覆盖、规划、乃至通信系统设计的关键基础性工作,尤其是大尺度信道特性,直接影响接收信号质量的信道参数,对通信质量有关键性影响。本文开展了针对性的信道测量工作,并基于采集的实测数据对信道大尺度衰落特性进行量化表征和建模,并将建模结果和现有信道模型进行了对比分析。相关成果可以服务于城市轨道交通地下通道场景无线网络的覆盖和规划工作。Wireless communication system plays an important role in the construction and operation of urban rail transit.The characterization and modeling of wireless channels is the basic work critical to wireless network coverage,planning,and system design.Fepecially,large scale channel characteristics direetly afeet the received signal strength and have a key impact on communication quality.In this paper,the targeted channel measurement is carried out,and the large scale channel fading is quantitatively characterized and modeled.The results are compared with the existing channel models,and the related findings can serve the coverage and planning of wireless network in subway underground pedestrian passage scenario.

关 键 词：城市轨道交通 无线通信 无线信道 大尺度衰落 路径损耗 

分 类 号：TN929.5[电子电信—通信与信息系统]