Data Science Day @ Columbia University has ended
Columbia University’s Data Science Institute Presents:

Authors/Collaborators are listed in alphabetical order.

Back To Schedule
Wednesday, April 6 • 2:00pm - 4:30pm
Wireless Demonstrator with Analog-Enabled Digital MIMO Receivers for High Data Rate Wireless Communication [D27]

Sign up or log in to save this to your schedule, view media, leave feedback and see who's attending!

Wireless MIMO communication systems significantly improve data rate and data reliability with the spatial selectivity provided by multiple antennas and digital signal processing. However, the RF/analog circuits and data-converters in receivers are exposed to spatial interference due to the lack of spatial selectivity in analog domain.     In this wireless demonstrator, an 8-element spatio-spectral-filtering MIMO receiver array uses a 2×4 antenna array to detect a weak desired signal in the presence of a stronger spatially-distinct in-band blocker. 45 simultaneous beams in a 5×9 array are formed digitally. An image shows 45 pixels, the brightness of each indicates the received signal strength on a corresponding beam.     Without RF/analog spatial rejection, the receiver array outputs are saturated by the strong blocker. The desired signals cannot be detected on the image. With RF/analog spatial rejection, receiver saturation is prevented. The blocker disappears in the image and the desired weak signal can be clearly detected.

Demo/Poster Presenter
avatar for Linxiao Zhang

Linxiao Zhang

PhD Candidate in Electrical Engineering, Columbia Engineering
Linxiao Zhang graduated from Nanyang Technological University, Singapore, in 2011 with a Bachelor's degree in Electrical and Electronics Engineering. He interned at the Institute of Microelectronics, Singapore, for five months in 2009. In Summer 2012, he joined Dr. Harish Krishnaswamy's resea... Read More →

Wednesday April 6, 2016 2:00pm - 4:30pm EDT
Roone Arledge Auditorium Lerner Hall, Columbia University 2920 Broadway, New York, NY 10040