Integrated Information Processing (IIP) Group receives the Best Paper Award at ESSCIRC 2021
Together with their collaborators, Oscar Castañeda and Seyed Hadi Mirfarshbafan from Prof. Christoph Studer's IIP Group, won the Best Paper Award at the 47th European Solid-State Circuits Conference (ESSCIRC).
The awarded paper, entitled "A Resolution-Adaptive 8mm2 9.98Gb/s 39.7pJ/b 32-Antenna All-Digital Spatial Equalizer for mmWave Massive MU-MIMO in 65nm CMOS", is authored by Oscar Castañeda (ETH), Zachariah Boynton (Cornell), Seyed Hadi Mirfarshbafan (ETH), Shimin Huang (Cornell), Jamie C. Ye (Cornell), Prof. Alyosha Molnar (Cornell), and Prof. Christoph Studer (ETH).
The paper presents the first resolution-adaptive all-digital spatial equalization ASIC for millimeter-wave massive multi-user MIMO. The ASIC is equipped with an ADC array for a 32-antenna base-station, as well as with a spatial equalizer capable of supporting up to 16 user equipments. Both the ADC array and spatial equalizer are able to instantaneously adapt their resolution to the communication scenario, such as the number of user equipments being served or the modulation being used. By doing so, the ASIC achieves an improved energy efficiency two times better than the next-best design. The ASIC also contains circuitry for channel estimation in the beamspace domain. You can find more details of the ASIC on external page arXiv.