基于DoA的高速场景下大规模MIMO自适应波束成形
Adaptive beamforming of massive MIMO based on DoA in high mobility scenarios
摘要
Abstract
A direction of arrival based (DoA-based) beamforming of massive MIMO was proposed for high-speed rail-way scenarios. In order to guarantee that the optimal system capacity can be obtained during traveling, an iterative mul-ti-beams scheme was proposed. It aimed to design different beams for different mobile carriage terminals (MCT) respec-tively. The proposal adaptively selected the number of antennas for each beam, and adaptively designed the number of beams according to system capacity. Moreover, the scheme didn't need channel state information (CSI) that can reduce system implementation complexity and cost. Numerical results indicate that the proposed scheme is suitable for high-speed scenarios, the system performance can be improved more efficiently compared to conventional methods.关键词
高速铁路/大规模MIMO/车地通信/到达角/波束成形Key words
high-speed railway/massive MIMO/train-ground communication/direction of arrival/beamforming分类
信息技术与安全科学引用本文复制引用
廖勇,李瑜锋,沈轩帆..基于DoA的高速场景下大规模MIMO自适应波束成形[J].通信学报,2017,38(6):58-67,10.基金项目
国家自然科学基金资助项目(No.61501066,No.61201133,No.61571338) （No.61501066,No.61201133,No.61571338）
国家科技重大专项基金资助项目(No.2015zx03002006-003,No.MJ-2014-S-37) （No.2015zx03002006-003,No.MJ-2014-S-37）
国家高技术研究发展计划("863"计划)基金资助项目(No.2015AA015701) （"863"计划）
重庆市基础与前沿研究计划基金资助项目(No.cstc2015jcyjA40003,No.cstc2016jcyjA0209) （No.cstc2015jcyjA40003,No.cstc2016jcyjA0209）
四川省应用基础研究计划基金资助项目(No.2016JY0179) （No.2016JY0179）
综合业务网理论及关键技术国家重点实验室开放基金资助项目(No.ISN16-03) （No.ISN16-03）
中央高校基本科研业务费基金资助项目(No.106112014CDJZR165505,No.106112017CDJXY500001)The National Natural Science Foundation of China (No.61501066, No.61201133, No.61571338),The National Science and Technology Major Project of China (No.2015zx03002006-003, No.MJ-2014-S-37), The National High Technology R&D Program of China (863 Program) (No.2015AA015701), The Chongqing Frontier and Applied Basic Research Project (No.cstc2015jcyjA40003, No.cstc2016jcyjA0209), Applied Basic Research Project of Sichuan Province (No.2016JY0179), The Open Fund of the State Key Laboratory of Integrated Services Networks (No.ISN16-03), The Fundamental Research Funds for the Central Universities (No.106112014CDJZR165505, No.106112017CDJXY500001) （No.106112014CDJZR165505,No.106112017CDJXY500001）
