125 citations · 191 across the 4 of their papers we have counts for
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cs.IT2021★ 125 cited
Deterministic Pilot Design and Channel Estimation for Downlink Massive MIMO-OTFS Systems in Presence of the Fractional Doppler
Ding Shi, Wenjin Wang, Li You +4
Although the combination of the orthogonal time frequency space (OTFS) modulation and the massive multiple-input multiple-output (MIMO) technology can make communication systems pe…
cs.IT2017★ 16 cited
Unifying Message Passing Algorithms Under the Framework of Constrained Bethe Free Energy Minimization
Dan Zhang, Xiaohang Song, Wenjin Wang +2
Variational message passing (VMP), belief propagation (BP) and expectation propagation (EP) have found their wide applications in complex statistical signal processing problems. In…
cs.IT2016★ 1 cited
Two-Level Spatial Multiplexing using Hybrid Beamforming Antenna Arrays for mmWave Communications
Xiaohang Song, Nithin Babu, Wolfgang Rave +2
In this work, we consider a two-level hierarchical MIMO antenna array system, where each antenna of the upper level is made up of a subarray on the lower one. The concept of spatia…