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Garbage collection plays a central role of flash-based solid state drive performance, in particular, its endurance. Analytical modeling is an indispensable instrument for design improvement as it demonstrates the relationship between SSD endurance, manifested as write amplification, and the algorithmic design variables, as well as workload characteristics. In this paper, we improve recent advances...
The single analog filter (SAF) hybrid filter bank (HFB) ADC is presented in this paper. Base on SAF architecture, a calibration model is derived to integrate the analog filter's realization errors and channel mismatches errors. A two-channel SAF HFB ADC with 12-bit resolution and 200MHz sampling rate is implemented. The experimental results show that the average spurious-free dynamic range (SFDR)...
Leakage power consumption contributes significantly to the overall power dissipation for systems that are manufactured in advanced deep sub-micron technology. Different from many previous results, this paper explores leakage-aware energy-efficient scheduling if leakage power consumption depends on temperature. We propose a pattern-based approach which divides a given time horizon into several time...
This paper studies the error of the hybrid filter banks (HFB) due to analog realization errors. It is shown that the architecture of HFB is much more sensitive to even small analog imperfections. Therefore, the performance of HFB has a dramatic deterioration. In order to improve the performance, a method named central frequency is presented. The results show that the value of max aliasing function...
The evaluation outcome often has time lags. As a result, the decision makers often make decision with time lags. In order to deal with the problem, a novel evaluation method based on Markov chain was put forward. Make the mark sequence given by experts for each index a Markov chain, the initial distribution and transition probabilities matrix can be computed based upon the statistical analysis of...
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