LE/FT Lab research mentioned in The Atlantic

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Submitted by winstead on Wed, 09/10/2014 - 14:08

One of our research projects in vehicular communication has been noticed by The Atlantic magazine. LE/FT Lab researchers have teamed with Prof. Ryan Gerdes to study security and reliability in automated vehicles.  The project also involves Prof. Rajnikant Sharma of the USU RISC Lab (they do research on coordinated control systems),  Prof. Ming Li of the USU WiSeR Lab (in the Computer Science Department), and Prof. Kevin Heaslip (now with the Transportation Infrastructure group at Virginia Tech).

Here's a quote from the article:

Imagine this future scenario: Self-driving cars form an orderly procession down a highway, traveling at precisely the right following distance and speed. All the on-board computers cooperate and all the vehicles travel reach their destinations safely. 

But what if one person jailbreaks her car, and tells her AI driver to go just a little faster than the other cars? As the aggressive car moves up on the other vehicles, their safety mechanisms kick in and they change lanes to get out of the way. It might make the overall efficiency of the transportation lower, but this one person would get ahead. 

This is but one of many scenarios that Ryan Gerdes of Utah State University is exploring with a $1.2 million grant from the National Science Foundation to look at the security of the autonomous vehicle future. 


Our article on Restorative Feedback in M-ary Logic Circuits

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Submitted by winstead on Tue, 04/29/2014 - 15:33

Our article on the Restorative Feedback method (RFB) for fault-tolerant registers is now published as an OpenAccess article by the Journal of Multiple Valued Logic and Soft Computing. You can read our previous blog entry, "Making a Better TMR", which gives a tutorial introduction to the RFB method, or you can access the full article here.

Full citation: 

  • Chris Winstead, Yi Luo, Eduardo Monzon and Abiezer Tejeda, "Error Correction via Restorative Feedback in M-ary Logic Circuits," Journal of Multiple Valued Logic and Soft Computing, vol. 23, no. 3-4, pp. 337-363, 2014.


LE/FT research presented at Bretagne Telecom, Brest, France, April 22.

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Submitted by winstead on Wed, 04/23/2014 - 04:00

Dr. Winstead delivered a presentation at Bretagne Telecom, titled "Recent results on bit-flipping LDPC decoders." The slides and associated article links are available at the bottom of this announcement. This presentation offered a summary of our work on the Noisy Gradient Descent Bit Flipping (NGDBF) algorithm, which was invented by PhD student Gopal Sundar.

LE/FT Research presented at the "Designing With Uncertainty" workshop, York, UK

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Submitted by winstead on Mon, 03/24/2014 - 09:29

Prof. Winstead attended a workshop at the University of York, titled Designing with Uncertainty: Opportunities and Challenges. We presented some recent results from our research on noise-assisted algorithms. Specifically, we presented some results from an error-correction algorithm proposed by PhD student Gopal Sundar: a simple and well-known "bit-flipping" technique is significantly improved by adding random noise into its calculations.

Our ACSAC article on automated vehicle security is now available

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Submitted by winstead on Sat, 12/28/2013 - 08:12

Dr. Winstead contributed to an article published in the 2013 Annual Computer Security Applications Conference (ACSAC). The article, titled "An Efficiency-motivated Attack Against Autonomous Vehicular Transportation," is now available as an Open Access publication. This research was the outcome of a collaboration with security expert Ryan Gerdes and transportation expert Kevin Heaslip.

The CMOS double-pair as a translinear element

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Submitted by winstead on Wed, 12/25/2013 - 06:11

The LE/FT lab has some experience with analog translinear circuit design, having spent several years investigating analog decoders and subthreshold circuits for implementing Bayesian inference with applications in forward error correction. One of the major difficulties with subthreshold analog computation is that the circuits require well-balanced differential signal processing. This balance is upset by device mismatch, an inevitable consequence of manufacturing homepage. Although our research has largely moved away from current-mode subthreshold processing, we recently proposed a novel mismatch-tolerant circuit approach based on the CMOS double-pair topology. Gopal Sundar used this approach to develop an improved winner-take all (WTA) circuit, as described in his recent MWSCAS article. This blog post presents the basic theory of the CMOS double-pair, its application in translinear computation, and its comparative sensitivity to mismatch.

Experiences at EMBC 2013

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Submitted by toribio on Sat, 11/23/2013 - 04:29

David Toribio, a recent LEFT lab alumnus, describes his experiences at the 2013 IEEE Engineering in Medicine and Biology Conference in Osaka, Japan. David presented research results from his MS thesis. He is now enrolled as a PhD student at the University of Miami. Read David's article here, and view his presentation slides here.

I really enjoyed my trip to EMBC '13 and would really recommend anyone to attend EMBC conferences, in the future. I am hoping that I can attend many more EMBC conferences in the future, even if I am not presenting or publishing work. The conference was a great source of inspiration for me, to keep pursuing my Biomedical Engineering (BME) degree, and to try to keep doing my best in the field. I was really amazed about how many different topics were covered in EMBC. You can really get to learn about the major findings in all the topics related to BME, in this conference. And even better, you can get to learn about these topics from the most experienced scholars in the field. Since my favorite BME sub-field is neuro-engineering, I signed up for the International Neuro-Technology workshop, which was held during the opening day before the conference started. Last year, when trying to decide about which school to apply, for pursuing a PhD, I read about the projects of many of the most successful researchers in neuro-engineering. So, it was very exciting for me to see that many of these researchers that I had read about, were giving talks in this neuro-engineering workshop. Moreover, I really liked this workshop, because I was also able to learn about the latest findings of one of the most experienced researchers in opto-genetics, which is one of the main technologies used in my PhD thesis.

PresentationPresenting my research at EMBC.


Gopal Sundar to present at MWSCAS 2013

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Submitted by winstead on Fri, 06/14/2013 - 02:17
LE/FT Lab member Gopalakrishnan Sundararajan's article has been accepted for presentation at the 2013 Midwest Symposium on Circuits and Systems in Columbus, Ohio this August. Now in its 56th year, MWSCAS is one of IEEE's longest running conferences. In spite of its name, the "Midwest Symposium" is actually an international conference often hosted outside the United States.
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