TamaRISC-CS: An Ultra-Low-Power Application-Specific Processor for Compressed Sensing

Jeremy Constantin, Ahmed Dogan, Oskar Andersson, Pascal Meinerzhagen, Joachim Rodrigues, David Atienza, Andreas Burg

Research output: Chapter in Book/Report/Conference proceedingPaper in conference proceedingpeer-review

Abstract

Compressed sensing (CS) is a universal technique for the compression of sparse signals. CS has been widely used in sensing platforms where portable, autonomous devices have to operate for long periods of time with limited energy resources. Therefore, an ultra-low-power (ULP) CS implementation is vital for these kind of energy-limited systems. Sub-threshold (sub-VT) operation is commonly used for ULP computing, and can also be combined with CS. However, most established CS implementations can achieve either no or very limited benefit from sub-VT operation. Therefore, we propose a sub-VT application-specific instruction-set processor (ASIP), exploiting the specific operations of CS. Our results show that the proposed ASIP accomplishes 62x speed-up and 11.6x power savings with respect to an established CS implementation running on the baseline low-power processor.
Original languageEnglish
Title of host publicationIEEE/IFIP 20th International Conference on VLSI and System-on-Chip (VLSI-SoC), 2012
PublisherIEEE - Institute of Electrical and Electronics Engineers Inc.
Pages159-164
ISBN (Print)978-1-4673-2657-5
DOIs
Publication statusPublished - 2012
EventIFIP/IEEE International Conference on Very Large Scale Integration (VLSI-SOC) - Santa Cruz, United States
Duration: 2012 Oct 7 → …

Conference

ConferenceIFIP/IEEE International Conference on Very Large Scale Integration (VLSI-SOC)
Country/TerritoryUnited States
CitySanta Cruz
Period2012/10/07 → …

Subject classification (UKÄ)

  • Electrical Engineering, Electronic Engineering, Information Engineering

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