577 citations · 2.9k across the 71 of their papers we have counts for
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eess.SP2018★ 1 cited
Omnidirectional Quasi-Orthogonal Space-Time Block Coded Massive MIMO Systems
Can Liu, Xiang-Gen Xia, Yongzhao Li +2
Common signals in public channels of cellular systems are usually transmitted omnidirectionally from the base station (BS). In recent years, both discrete and consecutive omnidirec…
eess.SP2018
Variation of a Signal in Schwarzschild Spacetime
Huan Liu, Xiang-Gen Xia, Ran Tao
In this paper, the variation of a signal in Schwarzschild spacetime is studied and a general equation for frequency shift parameter (FSP) is presented. It shows that FSP depends on…
eess.SP2018★ 1 cited
A Simple Channel Independent Beamforming Scheme with Circular Array
Haiyue Jing, Wenchi Cheng, Xiang-Gen Xia
In this letter, we consider a uniform circular array (UCA) based line-of-sight (LOS) multiple-input-multiple-output (MIMO) system, where the transmit and receive UCAs are aligned w…