L
Liu Liu
Researcher at Beijing Jiaotong University
Publications - 156
Citations - 2424
Liu Liu is an academic researcher from Beijing Jiaotong University. The author has contributed to research in topics: Communication channel & MIMO. The author has an hindex of 19, co-authored 124 publications receiving 1760 citations. Previous affiliations of Liu Liu include Southeast University & Central South University.
Papers
More filters
Journal ArticleDOI
Channel Estimation and Performance Analysis of One-Bit Massive MIMO Systems
TL;DR: In this paper, the authors proposed an approach for channel estimation that is applicable for both flat and frequency-selective fading, based on the Bussgang decomposition that reformulates the nonlinear quantizer as a linear function with identical first and second-order statistics.
Journal ArticleDOI
Position-Based Modeling for Wireless Channel on High-Speed Railway under a Viaduct at 2.35 GHz
TL;DR: This paper presents a novel and practical study on the position-based radio propagation channel for High-Speed Railway by performing extensive measurements at 2.35 GHz in China, which significantly promotes the evaluation and verification of wireless communications in relative scenarios.
Journal ArticleDOI
Experimental studies on the shape and motion of air bubbles in viscous liquids
Liu Liu,Hongjie Yan,Guojian Zhao +2 more
TL;DR: In this paper, the trajectory of a single bubble in water and glycerol aqueous solution was determined by analyzing the bubble characteristics in two-dimensional plane captured by a single high-speed camera and the bubble trajectory in the water was ascertained by this method.
Journal ArticleDOI
Downlink Achievable Rate Analysis in Massive MIMO Systems With One-Bit DACs
TL;DR: It is shown that, compared with conventional massive MIMO systems, the performance loss in one-bit massive M IMO systems can be compensated for by deploying approximately 2.5 times more antennas at the BS.
Journal ArticleDOI
Experimental studies on the terminal velocity of air bubbles in water and glycerol aqueous solution
TL;DR: In this paper, the authors studied the terminal velocity of a single bubble in water and glycerol aqueous solution and found that the velocity increases with the bubble diameter and the trend of the bubble velocity does not show a scattered behavior.