Standby redundancies at component level versus system level in series system |
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Authors: | Xingyu Yan Yiying Zhang |
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Institution: | 1. School of Statistics, East China Normal University, Shanghai, P.R. China;2. School of Statistics and Data Science, LPMC and KLMDASR, Nankai University, Tianjin, P.R. China |
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Abstract: | AbstractIt is known that the redundancy at the component level is better than the system level for the case of active redundancy. However, few results are available for standby redundancy due to the complexity of convolution. This note stochastically compares allocations of standby redundancies in series systems with exponential components at the component level versus the system level in sense of the likelihood ratio ordering. The established results strengthen and extend some known ones in the literature. |
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Keywords: | Redundancy allocation non-matching allocation stochastic comparison likelihood ratio ordering |
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