A Resolution-Adaptive 8 mm$^text{2}$ 9.98 Gb/s 39.7 pJ/b 32-Antenna All-Digital Spatial Equalizer for mmWave Massive MU-MIMO in 65nm CMOS

Posted by dbos Cornell

Kavli Affiliate: Alyosha Molnar | First 5 Authors: Oscar Castañeda, Zachariah Boynton, Seyed Hadi Mirfarshbafan, Shimin Huang, Jamie C. Ye | Summary: All-digital millimeter-wave (mmWave) massive multi-user multiple-input multiple-output (MU-MIMO) receivers enable extreme data rates but require high power consumption. In order to reduce power consumption, this paper presents the first resolution-adaptive all-digital receiver ASIC […]


Continue.. A Resolution-Adaptive 8 mm$^text{2}$ 9.98 Gb/s 39.7 pJ/b 32-Antenna All-Digital Spatial Equalizer for mmWave Massive MU-MIMO in 65nm CMOS

A Resolution-Adaptive 8 mm$^text{2}$ 9.98 Gb/s 39.7 pJ/b 32-Antenna All-Digital Spatial Equalizer for mmWave Massive MU-MIMO in 65nm CMOS

Posted by klaurent Cornell

Kavli Affiliate: Alyosha Molnar | First 5 Authors: Oscar Castañeda, Zachariah Boynton, Seyed Hadi Mirfarshbafan, Shimin Huang, Jamie C. Ye | Summary: All-digital millimeter-wave (mmWave) massive multi-user multiple-input multiple-output (MU-MIMO) receivers enable extreme data rates but require high power consumption. In order to reduce power consumption, this paper presents the first resolution-adaptive all-digital receiver ASIC […]


Continue.. A Resolution-Adaptive 8 mm$^text{2}$ 9.98 Gb/s 39.7 pJ/b 32-Antenna All-Digital Spatial Equalizer for mmWave Massive MU-MIMO in 65nm CMOS

Resolution-Adaptive All-Digital Spatial Equalization for mmWave Massive MU-MIMO

Posted by dbos Cornell

Kavli Affiliate: Alyosha Molnar | First 5 Authors: Oscar Castañeda, Seyed Hadi Mirfarshbafan, Shahaboddin Ghajari, Alyosha Molnar, Sven Jacobsson | Summary: All-digital basestation (BS) architectures for millimeter-wave (mmWave) massive multi-user multiple-input multiple-output (MU-MIMO), which equip each radio-frequency chain with dedicated data converters, have advantages in spectral efficiency, flexibility, and baseband-processing simplicity over hybrid analog-digital solutions. […]


Continue.. Resolution-Adaptive All-Digital Spatial Equalization for mmWave Massive MU-MIMO

Resolution-Adaptive All-Digital Spatial Equalization for mmWave Massive MU-MIMO

Posted by dbos Cornell

Kavli Affiliate: Alyosha Molnar | First 5 Authors: Oscar Castañeda, Seyed Hadi Mirfarshbafan, Shahaboddin Ghajari, Alyosha Molnar, Sven Jacobsson | Summary: All-digital basestation (BS) architectures for millimeter-wave (mmWave) massive multi-user multiple-input multiple-output (MU-MIMO), which equip each radio-frequency chain with dedicated data converters, have advantages in spectral efficiency, flexibility, and baseband-processing simplicity over hybrid analog-digital solutions. […]


Continue.. Resolution-Adaptive All-Digital Spatial Equalization for mmWave Massive MU-MIMO

Inhibited nonradiative decay at all exciton densities in monolayer semiconductors

Posted by klaurent Berkeley

Kavli Affiliate: Ali Javey | First 5 Authors: Hyungjin Kim, Shiekh Zia Uddin, Naoki Higashitarumizu, Eran Rabani, Ali Javey | Summary: Most optoelectronic devices operate at high photocarrier densities, where all semiconductors suffer from enhanced nonradiative recombination. Nonradiative processes proportionately reduce photoluminescence (PL) quantum yield (QY), a performance metric that directly dictates the maximum device […]


Continue.. Inhibited nonradiative decay at all exciton densities in monolayer semiconductors

Inhibited nonradiative decay at all exciton densities in monolayer semiconductors

Posted by dbos Berkeley

Kavli Affiliate: Ali Javey | First 5 Authors: , , , , | Summary: Most optoelectronic devices operate at high photocarrier densities, where all semiconductors suffer from enhanced nonradiative recombination. Nonradiative processes proportionately reduce photoluminescence (PL) quantum yield (QY), a performance metric that directly dictates the maximum device efficiency. Although transition-metal dichalcogenide (TMDC) monolayers exhibit […]


Continue.. Inhibited nonradiative decay at all exciton densities in monolayer semiconductors

Comprehensive Broadband X-ray and Multiwavelength Study of Active Galactic Nuclei in Local 57 Ultra/luminous Infrared Galaxies Observed with NuSTAR and/or Swift/BAT

Posted by klaurent Peking

Kavli Affiliate: Claudio Ricci | First 5 Authors: Satoshi Yamada, Yoshihiro Ueda, Atsushi Tanimoto, Masatoshi Imanishi, Yoshiki Toba | Summary: We perform a systematic X-ray spectroscopic analysis of 57 local ultra/luminous infrared galaxy systems (containing 84 individual galaxies) observed with Nuclear Spectroscopic Telescope Array and/or Swift/BAT. Combining soft X-ray data obtained with Chandra, XMM-Newton, Suzaku […]


Continue.. Comprehensive Broadband X-ray and Multiwavelength Study of Active Galactic Nuclei in Local 57 Ultra/luminous Infrared Galaxies Observed with NuSTAR and/or Swift/BAT

Quantifying Variability of YSOs in the Mid-IR Over Six Years with NEOWISE

Posted by klaurent Peking

Kavli Affiliate: Gregory Herczeg | First 5 Authors: Wooseok Park, Jeong-Eun Lee, Carlos Contreras Peña, Doug Johnstone, Gregory Herczeg | Summary: Variability in young stellar objects (YSOs) can be caused by various time-dependent phenomena associated with star formation, including accretion rates, geometric changes in the circumstellar disks, stochastic hydromagnetic interactions between stellar surfaces and inner […]


Continue.. Quantifying Variability of YSOs in the Mid-IR Over Six Years with NEOWISE

The JCMT Transient Survey: Four Year Summary of Monitoring the Submillimeter Variability of Protostars

Posted by klaurent Peking

Kavli Affiliate: Gregory Herczeg | First 5 Authors: Yong-Hee Lee, Doug Johnstone, Jeong-Eun Lee, Gregory Herczeg, Steve Mairs | Summary: We present the four-year survey results of monthly submillimeter monitoring of eight nearby ($< 500 $pc) star-forming regions by the JCMT Transient Survey. We apply the Lomb-Scargle Periodogram technique to search for and characterize variability […]


Continue.. The JCMT Transient Survey: Four Year Summary of Monitoring the Submillimeter Variability of Protostars