Pulse-Density Modulation with an Ensemble of Single-Electron Circuits Employing Neuronal Heterogeneity to Achieve High Temporal Resolution

We investigated the implications of static noises in a pulse-density modulator based on Vestibulo-ocular Reflex model. We constructed a simple neuromorphic circuit consisting of an ensemble of single-electron devices and confirmed that static noises (heterogeneity in circuit parameters) introduced into the network indeed played an important role in improving the fidelity with which neurons could encode signals whose input frequencies are higher than the intrinsic response frequencies of single neurons. Through Monte-Carlo based computer simulations, we demonstrated that the heterogeneous network could corectly encode signals with input frequencies as high as 1 GHz, twice the range for single (or a network of homogeneous) neurons.

Authors and Affiliations

1. Hokkaido University, IST-M252, Sapporo, 060-0814, Japan

   Andrew Kilinga Kikombo, Tetsuya Asai & Yoshihito Amemiya

Editors and Affiliations

1. Microelectronic Systems Laboratory STI-LSM, Swiss Federal Institute of Technology EPFL, ELD339 Btiment ELD, Station 11, 1015, Lausanne, Switzerland

   Alexandre Schmid

2. Business Administration, State University of New York,, 310b, 1400 Washington Ave.,, 12222, Albany, NY, USA

   Sanjay Goel

3. College of Nanoscale Science and Engineering, University of Albany, 12222, Albany, NY, USA

   Wei Wang

4. College of Information Technology, UAE University, P.O. Box 17555, Al Ain, Abu Dhabi, United Arab Emirates

   Valeriu Beiu

5. Lausanne EPFL IC ISIM LSI1 INF 333 (Btment INF) Station 14, Swiss Federal Institute of Technology, CH-1015, Lausanne, Switzerland

   Sandro Carrara

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