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Juan Zeng receives Best Paper Award at Symposium on Circuits and Systems

November 6, 2009

Graduate student Juan Zeng received a Best Paper award at the 52nd IEEE International Midwest Symposium on Circuits and Systems, 2009. Juan Zeng, a student in Assistant Professor Valencia Joyner's Advanced Integrated Circuits and Systems Laboratory worked with researchers Jun Liao, Shengling Deng, and Zhaoran Huang from Rensselaer Polytechnic Institute.

Optical multi-input/multi-output (MIMO) systems are emerging as a disruptive wireless access technology with the potential to overcome performance-limiting challenges faced by line-of-sight free-space optical links in delivering on the promise of unlimited-bandwidth wireless channels. The use of source/detector arrays in optical MIMO processing alleviates the optical alignment issue and the signal fading problem due to atmospheric turbulence. Diversity combining methods have been shown to significantly reduce link outage probability and boost power gain over nondiversity systems. Multi-channel diversity receivers employing segmented detectors achieve higher bandwidth channels and lower channel noise for the same overall receiver field-of-view compared to single-element topologies.

This paper presents a novel 7-channel CMOS diversity receiver employing a novel current-summing diversity combining scheme for optical wireless MIMO.

Read more about their research in the paper: "A 5Gb/s 7-Channel Current-mode Imaging Receiver Front-end for Free-Space Optical MIMO"