242 citations · 521 across the 5 of their papers we have counts for
4 papers · 1 filter
Disproving Sum-Difference Co-Array Property
Jisheng Dai, Hing Cheung So
The recently published paper by Gupta and Agrawal [1] exploited the sum-difference co-array (SDCA) to enhance the virtual aperture of sparse arrays. We argue that the key SDCA prop…
Sparse Bayesian Learning Approach for Discrete Signal Reconstruction
Jisheng Dai, An Liu, Hing Cheung So
This study addresses the problem of discrete signal reconstruction from the perspective of sparse Bayesian learning (SBL). Generally, it is intractable to perform the Bayesian infe…
Joint Channel Estimation and User Grouping for Massive MIMO Systems
Jisheng Dai, An Liu, Vincent K. N. Lau
This paper addresses the problem of joint downlink channel estimation and user grouping in massive multiple-input multiple-output (MIMO) systems, where the motivation comes from th…
FDD Massive MIMO Channel Estimation with Arbitrary 2D-Array Geometry
Jisheng Dai, An Liu, Vincent K. N. Lau
This paper addresses the problem of downlink channel estimation in frequency-division duplexing (FDD) massive multiple-input multiple-output (MIMO) systems. The existing methods us…