Journal
IEEE TRANSACTIONS ON AEROSPACE AND ELECTRONIC SYSTEMS
Volume 58, Issue 3, Pages 2327-2338Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TAES.2021.3134750
Keywords
Reliability; Optimization; Aerospace electronics; Redundancy; Aircraft; Ethernet; Topology; Integrated modular avionics (IMA); networked system; optimization; redundancy; reliability; signomial
Funding
- SAFRAN
- KAUST
- National Science Foundation [CNS 1544332, 1446758]
- Division Of Computer and Network Systems
- Direct For Computer & Info Scie & Enginr [1446758] Funding Source: National Science Foundation
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This article proposes an optimization-based framework for guaranteeing the desired reliability of any graph-based networked system, focusing on using minimally redundant components in the integrated modular avionics architecture. The framework consists of two steps, computing the minimum number of components in the architecture and determining the minimal number of connections between these components.
Reliability is an important aspect of operating safety-critical applications of networked systems, such as in avionics. In order to ensure sufficient reliability, one approach is to apply redundancy. However, redundancy may be costly if the degree of redundancy is too high. This article proposes an optimization-based framework for guaranteeing the desired reliability of any graph-based networked system. It focuses on integrated modular avionics architecture, based on the use of minimally redundant components. This framework consists of two steps. The first is to compute the minimum number of components within the architecture, using a geometric program. The second is to determine the topology with the minimal number of connections between these components, using a signomial program. Finally, the method is illustrated on a small example network and a larger network of the A350 avionics architecture.
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