Journal of the Korean Institute of Telematics and Electronics B (전자공학회논문지B)
- Volume 32B Issue 3
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- Pages.1-10
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- 1995
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- 1016-135X(pISSN)
Implementation and Performance Analysis of a Fault-tolerant Mini-MAP System
결함 허용 Mini-MAP 시스템의 구현 및 성능해석
Abstract
In this paper, a fault-tolerant Mini-MAP system with high reliability is proposed. For fault-tolerance, the LLC sublayer, MAC sublayer, and physical layer of the Mini-MAP system are dualized. The detection of faults, the replacement of the failed network, and the management of the network are three major functions required for the dualization, and they are performed by ESM(Error Supervisory Machine), EMM(Error Management Machine), and NMM(Network Management Machine) of the proposed fault-tolerant Mini-MAP system, respectively. The ring maintenance function of the MAC sublayer is used for the detection of the faults. In the proposed fault-tolerant Mini-MAP system, the data are received from both of the dualized networks and transmitted to the selected one of the two. We analyze the reliability and the MTTF(Mean Time To Failure) of the proposed fault-tolerant Mini-MAP system and show that it has better performance compared to a general Mini-MAP system.
Keywords