利用数据冗余在可靠性感知网络嵌入式系统设计中的应用

M. Lukasiewycz, M. Glaß, J. Teich
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引用次数: 8

摘要

本文提出了一种利用现有数据冗余来提高网络嵌入式系统可靠性的系统级设计方法。所提出的方法不仅支持从头开始的可靠性感知嵌入式系统设计,而且还允许对现有系统进行重新设计,以最小的通信开销提高可靠性。所提出的方法有助于(a)自动识别固有数据冗余的算法和(b)能够利用揭示的数据冗余的自动设计空间探索。提出了一种量化系统可靠性的符号分析方法,使可靠性成为多个相互冲突的优化目标之一。所提出的方法应用于汽车领域的实际案例研究,显示出在通信开销可以忽略不计的情况下显著提高了可靠性。
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Exploiting data-redundancy in reliability-aware networked embedded system design
This paper presents a system-level design methodology for networked embedded systems that exploits existing data-redundancy to increase their reliability. The presented approach not only supports a reliability-aware embedded system design from scratch, but also enables the redesign of existing systems to increase the reliability with a minimal communication overhead. The proposed approach contributes (a) algorithms to automatically identify inherent data-redundancy and (b) an automatic design space exploration that is capable of exploiting the revealed data-redundancy. A symbolic analysis is presented that quantifies the reliability of a system, enabling the usage of reliability as one of multiple conflicting optimization objectives. The proposed approach is applied to a realworld case study from the automotive area, showing a significantly increased reliability with a negligible communication overhead.
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