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Reliability analysis of multicellular system architectures for low-cost satellites

Erlank, Alex and Bridges, Christopher (2018) Reliability analysis of multicellular system architectures for low-cost satellites Acta Astronautica, 147. pp. 183-194.

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Multicellular system architectures are proposed as a solution to the problem of low reliability currently seen amongst small, low cost satellites. In a multicellular architecture, a set of independent k-out-of-n systems mimic the cells of a biological organism. In order to be beneficial, a multicellular architecture must provide more reliability per unit of overhead than traditional forms of redundancy. The overheads include power consumption, volume and mass. This paper describes the derivation of an analytical model for predicting a multicellular system's lifetime. The performance of such architectures is compared against that of several common forms of redundancy and proven to be beneficial under certain circumstances. In addition, the problem of peripheral interfaces and cross-strapping is investigated using a purpose-developed, multicellular simulation environment. Finally, two case studies are presented based on a prototype cell implementation, which demonstrate the feasibility of the proposed architecture.

Item Type: Article
Divisions : Faculty of Engineering and Physical Sciences > Electronic Engineering
Authors :
Date : 10 April 2018
DOI : 10.1016/j.actaastro.2018.04.006
Uncontrolled Keywords : Reliability engineering; Fault tolerance; Biomimetics; Distributed computing; Graceful degeneracy
Depositing User : Users 8 not found.
Date Deposited : 21 Sep 2018 10:32
Last Modified : 13 May 2020 16:33

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