摘要
在上海地铁真实隧道环境下开展了车地间大规模MIMO信道测量,中心频率为5.6GHz,带宽160MHz。发射端采用了32个阵元的均匀平板天线,置于站台上模拟基站。接收端是由64个阵元构成的均匀圆筒阵列天线,被放置在列车车厢内部,模拟列车通信终端。重点分析了大规模MIMO信道容量,结果发现大规模MIMO技术在车地通信中的使用可以有效地提升信道容量。
Massive MIMO channel measurements between train and trackside equipment are carried out in the Shanghai subway real tunnel scenario in this paper.The central frequency and the bandwidth are considered as 5.6 GHz and 160 MHz,respectively.To simulate the actual base station,the transmitter is equipped with a uniform planar antenna array consisting of 32 elements,which is fixed on the platform.At the receiver side,a uniform cylindrical antenna array composed of 64 elements is placed in the carriage of the train,simulating as a train communication terminal.Focusing on the massive MIMO channel capacity,it is found that the use of massive MIMO technology in the train-to-ground communication system can effectively increase the channel capacity.
出处
《工业控制计算机》
2021年第10期62-63,108,共3页
Industrial Control Computer
基金
2019-2022国家自然科学基金(NSFC61871261),漏泄电缆的群信道的相关性及其MIMO系统综合性能的研究
2020-2022上海申通地铁集团有限公司科研项目(JS-KY19R031),5G通信技术在上海轨道交通中的应用研究。
