13 papers
An Open-Source Standard-Cell Library for IHP 130nm Developed by Students
Oscar Castañeda, Lavinia Recchioni, Tobias Senti +26
Standard-cell libraries form the critical interface between transistor-level circuit design and automated digital design flows, yet their design and characterization are rarely cov…
A 39pJ/b 7.3Gbps 1.3mm Multi-Subcarrier Massive MU-MIMO-OFDM Detector Exploiting Beamspace Sparsity and Frequency-Domain Correlation in 22FDX
Abhishek Kumar, Seyed Hadi Mirfarshbafan, Oscar Castañeda +1
We present the first multi-subcarrier massive multi-user (MU) multiple-input multiple-output (MIMO) orthogonal frequency-division multiplexing (OFDM) data detector reported in the…
Variable Point: A Number Format for Area- and Energy-Efficient Multiplication of High-Dynamic-Range Numbers
Seyed Hadi Mirfarshbafan, Nicolas Filliol, Oscar Castañeda +1
Fixed-point number representation is commonly employed in digital VLSI designs that have stringent hardware efficiency constraints. However, fixed-point numbers cover a relatively…
Beamspace Equalization for mmWave Massive MIMO: Algorithms and VLSI Implementations
Seyed Hadi Mirfarshbafan, Christoph Studer
Massive multiuser multiple-input multiple-output (MIMO) and millimeter-wave (mmWave) communication are key physical layer technologies in future wireless systems. Their deployment,…
A 46 Gbps 12 pJ/b Sparsity-Adaptive Beamspace Equalizer for mmWave Massive MIMO in 22FDX
Seyed Hadi Mirfarshbafan, Christoph Studer
We present a GlobalFoundries 22FDX FD-SOI application-specific integrated circuit (ASIC) of a beamspace equalizer for millimeter-wave (mmWave) massive multiple-input multiple-outpu…
Hardware-Aware Beamspace Precoding for All-Digital mmWave Massive MU-MIMO
Emre Gönültaş, Sueda Taner, Alexandra Gallyas-Sanhueza +2
Massive multi-user multiple-input multiple-output (MU-MIMO) wireless systems operating at millimeter-wave (mmWave) frequencies enable simultaneous wideband data transmission to a l…