Seminars at the Faculty of Informatics

Smart wireless body sensor nodes: why, what and how

The Faculty of Informatics is pleased to announce a seminar given by Giovanni Ansaloni

DATE: Wednesday, November 12th 2014
PLACE: USI Lugano Campus, room SI-006, Informatics building (Via G. Buffi 13)
TIME: 09.30

Embedded cardiac monitors are wearable and miniaturized devices, providing the acquisition, on-board processing and wireless transmission of cardiac bio-signals for prolonged periods of time. These Wireless Body Sensor Nodes (WBSNs) allow non-intrusive and long-term monitoring of patients for the prevention of acute episodes and/or for the assessment of chronic conditions. On-node Digital Signal Processing (DSP) can effectively increase the efficiency and lifetime of WBSNs by minimizing the transmission bandwidth over the energy-hungry wireless link. In this context, the first part of the talk illustrates low-complexity signal processing solutions for electrocardiogram (ECG) acquisitions, including lightweight signal compression, features extraction and classification methods. Signal processing routines should themselves be implemented within a tight energy budget. In its second part, the talk highlights how the parallelism present in bio-signal analysis applications can be efficiently leveraged by a domain-specific and ultra-low-power digital architecture featuring multiple computing cores, fine grained synchronization and shared access to memory resources.

Giovanni Ansaloni (PhD 2011, MS 2003) is a post-doctoral researcher at the Embedded Systems Laboratory of the École Polytechnique Fédérale de Lausanne (ESL-EPFL). His research efforts focus on smart Wireless Body Sensor Nodes, including software optimizations of processing algorithms for bio-signal analysis and architectural explorations of ultra-low-power WBSN platforms. On these topics, he has authored or co-authored papers in international conferences (DAC, DATE, ICASSP) and he is participating in international research initiatives, including the Phidias and IcyHeart EU projects.

HOST: Prof. Laura Pozzi