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  4. Memory concepts for enabling adaptivity in distributed embedded systems
 
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2014
Journal Article
Title

Memory concepts for enabling adaptivity in distributed embedded systems

Abstract
Establishing cost and resource efficient dependability through means of adaptivity in safety-critical distributed embedded systems is a strenuous endeavour, as the varying requirements on resilience, control and efficiency across domains prohibits a single solution to suit all needs. To assist the process of determining a safe and efficient system architecture with satisfactory precision, this work exemplifies the importance of differentiation by only addressing distributed embedded systems that perform multiple functions with alternating levels of criticality. Further, they do not require full fail-operational behaviour, thus allowing to sacrifice less important functions in the pursuit of preserving safety. Herein, a dynamic instantiation and graceful degradation strategy is developed to subsequently study its effect on cost when implemented in conjunction with execute-in-place (NOR-flash) or block-addressable (NAND-flash) memory concepts. Even though NOR-flash is generally considered to be a better candidate for such systems, this qualitative research produces evidence that NAND-flash memory concepts are likely to financially outperform traditional architectures when considering adaptivity.
Author(s)
Schleiß, Philipp  
Fraunhofer-Institut für Eingebettete Systeme und Kommunikationstechnik ESK  
Zeller, Marc
Fraunhofer-Institut für Eingebettete Systeme und Kommunikationstechnik ESK  
Weiß, Gereon  
Fraunhofer-Institut für Eingebettete Systeme und Kommunikationstechnik ESK  
Journal
ACM SIGBED review. Online journal  
Project(s)
SafeAdapt  
Funder
European Commission EC  
Conference
Cyber-Physical Systems Week (CPSWeek) 2014  
Workshop on Adaptive and Reconfigurable Embedded Systems (APRES) 2014  
Open Access
File(s)
Download (116.06 KB)
Rights
Use according to copyright law
DOI
10.24406/publica-r-237713
10.1145/2692385.2692398
Language
English
ESK  
Keyword(s)
  • distributed embedded system

  • hot standby

  • embedded system

  • NAND flash

  • safety critical

  • cold standby

  • memory concept

  • real-time

  • application repository

  • non volatile xip memory

  • cost efficiency

  • block addressable

  • spatial isolation

  • memory utilisation

  • adaptive systems

  • adaptives System

  • automotive software

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