18 citations · 41 across the 12 of their papers we have counts for
9 papers · 1 filter
Sparsity-Adaptive Beamspace Channel Estimation for 1-Bit mmWave Massive MIMO Systems
Alexandra Gallyas-Sanhueza, Seyed Hadi Mirfarshbafan, Ramina Ghods +1
We propose sparsity-adaptive beamspace channel estimation algorithms that improve accuracy for 1-bit data converters in all-digital millimeter-wave (mmWave) massive multiple-input…
Beamspace Channel Estimation for Massive MIMO mmWave Systems: Algorithm and VLSI Design
Seyed Hadi Mirfarshbafan, Alexandra Gallyas-Sanhueza, Ramina Ghods +1
Millimeter-wave (mmWave) communication in combination with massive multiuser multiple-input multiple-output (MU-MIMO) enables high-bandwidth data transmission to multiple users in…
Optimal Data Detection in Large MIMO
Charles Jeon, Ramina Ghods, Arian Maleki +1
Large multiple-input multiple-output (MIMO) appears in massive multi-user MIMO and randomly-spread code-division multiple access (CDMA)-based wireless systems. In order to cope wit…
Linear Spectral Estimators and an Application to Phase Retrieval
Ramina Ghods, Andrew S. Lan, Tom Goldstein +1
Phase retrieval refers to the problem of recovering real- or complex-valued vectors from magnitude measurements. The best-known algorithms for this problem are iterative in nature…
PhaseLin: Linear Phase Retrieval
Ramina Ghods, Andrew S. Lan, Tom Goldstein +1
Phase retrieval deals with the recovery of complex- or real-valued signals from magnitude measurements. As shown recently, the method PhaseMax enables phase retrieval via convex op…
VLSI Design of a Nonparametric Equalizer for Massive MU-MIMO
Charles Jeon, Gulnar Mirza, Ramina Ghods +2
Linear minimum mean-square error (L-MMSE) equalization is among the most popular methods for data detection in massive multi-user multiple-input multiple-output (MU-MIMO) wireless…
Optimally-Tuned Nonparametric Linear Equalization for Massive MU-MIMO Systems
Ramina Ghods, Charles Jeon, Gulnar Mirza +2
This paper deals with linear equalization in massive multi-user multiple-input multiple-output (MU-MIMO) wireless systems. We first provide simple conditions on the antenna configu…
Optimal Large-MIMO Data Detection with Transmit Impairments
Ramina Ghods, Charles Jeon, Arian Maleki +1
Real-world transceiver designs for multiple-input multiple-output (MIMO) wireless communication systems are affected by a number of hardware impairments that already appear at the…
Optimality of Large MIMO Detection via Approximate Message Passing
Charles Jeon, Ramina Ghods, Arian Maleki +1
Optimal data detection in multiple-input multiple-output (MIMO) communication systems with a large number of antennas at both ends of the wireless link entails prohibitive computat…