Publications by Pablo Garcia del Valle

Cortical plasticity after hand prostheses use: Is the hypothesis of deafferented cortex "invasion" always true?

Pablo Garcia del Valle, Edoardo D'Anna, Silvestro Micera, Stanisa Raspopovic, Francesco Maria Petrini, Ivo Strauss, Giacomo Valle, Francesco Iberite

Objective: To study motor cortex plasticity after a period of training with a new prototype of bidirectional hand prosthesis in three left trans-radial amputees, correlating these changes with the modification of Phantom Limb Pain (PLP) in the same period. ...

ELSEVIER IRELAND LTD2020

Cortical plasticity after bionic hand prostheses: is the "invasion" hypothesis of deafferented cortex always true?

Pablo Garcia del Valle, Silvestro Micera, Giacomo Valle, Francesco Iberite

WILEY2020

Characterization of multi-channel intraneural stimulation in transradial amputees

Pablo Garcia del Valle, Edoardo D'Anna, Silvestro Micera, Stanisa Raspopovic, Francesco Maria Petrini, Ivo Strauss, Giacomo Valle, Fiorenzo Artoni

Although peripheral nerve stimulation using intraneural electrodes has been shown to be an effective and reliable solution to restore sensory feedback after hand loss, there have been no reports on the characterization of multi-channel stimulation. A deepe ...

Springer Nature2019

Comparison of linear frequency and amplitude modulation for intraneural sensory feedback in bidirectional hand prostheses

Pablo Garcia del Valle, Edoardo D'Anna, Silvestro Micera, Stanisa Raspopovic, Francesco Maria Petrini, Ivo Strauss, Giacomo Valle, Francesco Iberite

Recent studies have shown that direct nerve stimulation can be used to provide sensory feedback to hand amputees. The intensity of the elicited sensations can be modulated using the amplitude or frequency of the injected stimuli. However, a comprehensive c ...

Nature Research2018

Exploiting CPU-Load and Data Correlations in Multi-Objective VM Placement for Geo-Distributed Data Centers

David Atienza Alonso, Pablo Garcia del Valle, Ali Pahlevan

Cloud computing has been proposed as a new paradigm to deliver services over the internet. The proliferation of cloud services and increasing users’ demands for computing resources have led to the appearance of geo-distributed data centers (DCs). These DCs ...

EDAA/ACM/IEEE Press2016

Towards Near-Threshold Server Processors

David Atienza Alonso, Luca Benini, Pablo Garcia del Valle, Babak Falsafi, Javier Picorel Obando, Ali Pahlevan, Arash Pourhabibi Zarandi, Marina Zapater Sancho

The popularity of cloud computing has led to a dramatic increase in the number of data centers in the world. The ever-increasing computational demands along with the slowdown in technology scaling has ushered an era of power-limited servers. Techniques suc ...

IEEE/ACM2016

Inexact-Aware Architecture Design for Ultra-Low Power Bio-Signal Analysis

David Atienza Alonso, Pablo Garcia del Valle, Soumya Subhra Basu, Giovanni Ansaloni

This paper introduces an inexact, but ultra-low power, computing architecture devoted to the embedded analysis of bio-signals. The platform operates at extremely low voltage supply levels to minimize energy consumption. In this scenario, the reliability of ...

Inst Engineering Technology-Iet2016

Energy vs. Reliability Trade-offs Exploration in Biomedical Ultra-Low Power Devices

David Atienza Alonso, Pablo Garcia del Valle, Andreas Peter Burg, Loris Gérard Duch, Shrikanth Ganapathy

State-of-the-art wearable devices such as embedded biomedical monitoring systems apply voltage scaling to lower as much as possible their energy consumption and achieve longer battery lifetimes. While embedded memories often rely on Error Correction Codes ...

Ieee2016

Heterogeneous Error-Resilient Scheme for Spectral Analysis in Ultra-Low Power Wearable Electrocardiogram Devices

David Atienza Alonso, Pablo Garcia del Valle, Soumya Subhra Basu, Georgios Karakonstantis, Giovanni Ansaloni

Wearable devices performing advanced bio-signal analysis algorithms will foster a revolution in healthcare provision of chronic cardiac diseases. In this context, energy efficiency is of paramount importance, as long-term operations must be performed withi ...

IEEE Press2015

Emulation-based transient thermal modeling of 2D/3D systems-on-chip with active cooling

David Atienza Alonso, Pablo Garcia del Valle

State-of-the-art devices in the consumer electronics market are relying more and more on Multi-Processor Systems-On-Chip (MPSoCs) as an efficient solution to meet their multiple design constrains, such as low cost, low power consumption, high performance a ...

Elsevier2010

Performance and Energy Trade-offs Analysis of L2 on-Chip Cache Architectures for Embedded MPSoCs

Pablo Garcia del Valle, Mohamed Mostafa Sabry Aly, Martino Ruggiero

On-chip memory organization is one of the most important aspects that can influence the overall system behavior in multi-processor systems. Following the trend set by high-performance processors, high-end embedded cores are moving from single-level on chip ...

2010

Register File Reliability Analysis Through Cycle-Accurate Thermal Emulation

David Atienza Alonso, Pablo Garcia del Valle, José Luis Ayala Rodrigo

Continuous transistor scaling due to improvements in CMOS devices and manufacturing technologies is increasing processor power densities and temperatures; thus, creating challenges when trying to maintain manufacturing yield rates and devices which will be ...

IEEE Computer Society2008

Reliability-Aware Design for Nanometer-Scale Devices

Giovanni De Micheli, David Atienza Alonso, Luca Benini, Pablo Garcia del Valle, José Luis Ayala Rodrigo

Continuous transistor scaling due to improvements in CMOS devices and manufacturing technologies is increasing processor power densities and temperatures; thus, creating challenges to maintain manufacturing yield rates and reliable devices in their expecte ...

2008

Application of FPGA Emulation to SoC Floorplan and Packaging Exploration

Giovanni De Micheli, David Atienza Alonso, Luca Benini, Pablo Garcia del Valle, Roman Hermida Correa

New tendencies in the consumer electronics market present Multi-Processor Systems-On-Chip (MPSoCs) as a promising solution for meeting the processing demands of upcoming generations of user applications. MPSoCs are complex to design, as they must execute m ...

2007

Multi-Processor Operating System Emulation Framework with Thermal Feedback for Systems-on-Chip

Giovanni De Micheli, David Atienza Alonso, Luca Benini, Pablo Garcia del Valle, Francisco Javier Rincon Vallejos

Multi-Processor System-On-Chip (MPSoC) can provide the performance levels required by high-end embedded applications. However, they do so at the price of an increasing power density, which may lead to thermal runaway if coupled with low-cost packaging and ...

2007

A Complete Multi-Processor System-on-Chip FPGA-Based Emulation Framework

Giovanni De Micheli, David Atienza Alonso, Luca Benini, Pablo Garcia del Valle

With the growing complexity in consumer embedded products and the improvements in process technology, Multi-Processor System-On-Chip (MPSoC) architectures have become widespread. These new systems are very complex to design as they must execute multiple co ...

2006

Architectural Exploration of MPSoC Designs Based on an FPGA Emulation Framework

Giovanni De Micheli, David Atienza Alonso, Luca Benini, Pablo Garcia del Valle

With the growing complexity in consumer embedded products and the improvements in process technology, Multi-Processor System-On-Chip (MPSoC) architectures have become widespread. These new systems are very complex to design as they must execute multiple co ...

2006