In this paper, we compare the availability characteristics between three different series system configurations with mixed (cold and warm) standby components and k-stage Erlang repair times. Three configurations are studied under the assumption that the time-to-failure for each of the operative and warm standby components are assumed to be exponentially distributed with parameters λ andα , resp...

Traditionally in redundancy allocation problem (RAP), it is assumed that the redundant components are used based on a predefined active or standby strategies. Recently, some studies consider the situation that both active and standby strategies can be used in a specific system. However, these researches assume that the redundancy strategy for each subsystem can be either active or standby and d...

To address the increasingly important energy efficiency problem, a Standby-Sparing scheme has been studied previously to reduce the energy consumption in dual-processor fault-tolerant systems. However, the dedicated (spare) processor in the Standby-Sparing scheme needs to execute backup tasks at full speed to preserve system reliability and thus cannot effectively exploit its available slack ti...

Leakage current minimization is an important topic for event driven applications that spend most of their times in standby mode. Power gating technique is one of the most effective ways to reduce the standby leakage current. However, when power gating technique is applied to a functional unit, there exists a delay-power tradeoff, which can be characterized with the widths of sleep transistors. ...

We classify standby redundancy design space in processcontrol programs into the following three categories: cold standby, warm standby, and hot standby. Design parameters of warm standby are identified and the reliability of a system using warm standby is evaluated and compared with that of hot standby. Our analysis indicates that the warm standby scheme is particularly suitable for long-lived ...

This paper deals with machine repair problem with balking and reneging. There is provision of mixed standby (warm and cold) components to replace the failed machines. The lifetime and repair time are assumed to have exponential distribution. Birth-death technique is suggested to obtain the queue size distribution in explicit form. A repair facility of C permanent repairmen is facilitated to rep...

Abstract. Dual threshold voltage and forward body bias techniques are effective ways to optimally balance the standby leakage power and performance. In this paper, we propose a novel fine-grained forward body biasing scheme for monotonic static logic circuits. In the proposed scheme, the forward body bias is applied to high threshold voltage of either the pull-up or the pull-down network based ...