Millimeter-Wave Channel Estimation with Interference Cancellation and DOA Estimation in Hybrid Massive MIMO Systems

被引:0
作者
Liu, Weihan [1 ,2 ]
Li, Yang [3 ]
Yang, Feng [1 ]
Ding, Lianghui [1 ]
Zhi, Cheng [1 ]
机构
[1] Shanghai Jiao Tong Univ, Shanghai 200240, Peoples R China
[2] Sci & Technol Commun Networks Lab, Shijiazhuang 050081, Hebei, Peoples R China
[3] Wuhan Maritime Commun Res Inst, Wuhan 430205, Hubei, Peoples R China
来源
2017 9TH INTERNATIONAL CONFERENCE ON WIRELESS COMMUNICATIONS AND SIGNAL PROCESSING (WCSP) | 2017年
关键词
interference cancellation; millimeter wave communication; channel estimation; hybrid analog/digital antenna architecture; multiple signal classification;
D O I
暂无
中图分类号
TP3 [计算技术、计算机技术];
学科分类号
0812 ;
摘要
This paper researches on millimeter-wave (mm-wave) channel estimation based on interference cancellation (IC) and DOA (Direction of Angles) estimation in hybrid massive MIMO systems. According to the ray-tracing model, the mm-wave channel estimation problem can be solved by converting into the estimation of parameters including the angles of departure (AOD), the angles of arrival (AOA) and the path gains. In order to separate different paths in the mm-wave channel, interference cancellation is carried out by utilizing a designed set of spread codes. Then the DOA estimation and the least-squares method are used to achieve the path directions and gains, respectively. Compared with estimating all the paths directions simultaneously, simulation results show that the combination of IC and MUSIC can get lower root mean square error (RMSE). Meanwhile, the algorithm can get high resolution in directional spectrum because the proposed method can suppress the additive noise in the mm-wave channel effectively.
引用
收藏
页数:6
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