INVESTIGADORES
GOYA Andres Fabio
artículos
Título:
Experimental investigation of noise-assisted information transmission and storage via stochastic resonance
Autor/es:
G. A. PATTERSON; A. F. GOYA; P. I. FIERENS; S. A. IBÁÑEZ; D. F. GROSZ
Revista:
PHYSICA A - STATISTICAL AND THEORETICAL PHYSICS
Editorial:
ELSEVIER SCIENCE BV
Referencias:
Año: 2010 vol. 389 p. 1965 - 1970
ISSN:
0378-4371
Resumen:
We present experimental results on the information transmission and storage via stochastic
resonance in circuits designed and built around Schmitt triggers (STs). First, we investigate
the performance of a transmission line comprised of five STs and show it to exhibit
stochastic resonance. Each ST in the line is fed with white Gaussian noise, and the first ST
is driven by a non-return-to-zero pseudo-random bit sequence with sub-threshold amplitude.
Parameters such as bit error rate (Q-factor) are measured (calculated) and shown to
exhibit a minimum (maximum) for an optimum amount of noise. Interestingly, we find
that system performance degrades with the number of STs as if the system were linear and
impaired only by additive Gaussian noise.We then propose and build a 1-bit storage device
based on two STs in a loop configuration. We demonstrate that such a system is capable
of storing one bit of information only in the presence of noise, and that there is a regime
where the efficiency of such a device increases with increasing noise.
Our results point to the feasibility of building `blocks´ that can transmit, store and eventually
process information, whose performance is not only robust against noise, but can
actually benefit from it.
exhibit a minimum (maximum) for an optimum amount of noise. Interestingly, we find
that system performance degrades with the number of STs as if the system were linear and
impaired only by additive Gaussian noise.We then propose and build a 1-bit storage device
based on two STs in a loop configuration. We demonstrate that such a system is capable
of storing one bit of information only in the presence of noise, and that there is a regime
where the efficiency of such a device increases with increasing noise.
Our results point to the feasibility of building `blocks´ that can transmit, store and eventually
process information, whose performance is not only robust against noise, but can
actually benefit from it.
exhibit a minimum (maximum) for an optimum amount of noise. Interestingly, we find
that system performance degrades with the number of STs as if the system were linear and
impaired only by additive Gaussian noise.We then propose and build a 1-bit storage device
based on two STs in a loop configuration. We demonstrate that such a system is capable
of storing one bit of information only in the presence of noise, and that there is a regime
where the efficiency of such a device increases with increasing noise.
Our results point to the feasibility of building `blocks´ that can transmit, store and eventually
process information, whose performance is not only robust against noise, but can
actually benefit from it.
exhibit a minimum (maximum) for an optimum amount of noise. Interestingly, we find
that system performance degrades with the number of STs as if the system were linear and
impaired only by additive Gaussian noise.We then propose and build a 1-bit storage device
based on two STs in a loop configuration. We demonstrate that such a system is capable
of storing one bit of information only in the presence of noise, and that there is a regime
where the efficiency of such a device increases with increasing noise.
Our results point to the feasibility of building `blocks´ that can transmit, store and eventually
process information, whose performance is not only robust against noise, but can
actually benefit from it.
exhibit a minimum (maximum) for an optimum amount of noise. Interestingly, we find
that system performance degrades with the number of STs as if the system were linear and
impaired only by additive Gaussian noise.We then propose and build a 1-bit storage device
based on two STs in a loop configuration. We demonstrate that such a system is capable
of storing one bit of information only in the presence of noise, and that there is a regime
where the efficiency of such a device increases with increasing noise.
Our results point to the feasibility of building `blocks´ that can transmit, store and eventually
process information, whose performance is not only robust against noise, but can
actually benefit from it.
Q-factor) are measured (calculated) and shown to
exhibit a minimum (maximum) for an optimum amount of noise. Interestingly, we find
that system performance degrades with the number of STs as if the system were linear and
impaired only by additive Gaussian noise.We then propose and build a 1-bit storage device
based on two STs in a loop configuration. We demonstrate that such a system is capable
of storing one bit of information only in the presence of noise, and that there is a regime
where the efficiency of such a device increases with increasing noise.
Our results point to the feasibility of building `blocks´ that can transmit, store and eventually
process information, whose performance is not only robust against noise, but can
actually benefit from it.