The real-time compression layer for flash memory in mobile multimedia devices
Mobile Networks and Applications
Energy efficient sensor data logging with amnesic flash storage
IPSN '09 Proceedings of the 2009 International Conference on Information Processing in Sensor Networks
Memory-efficient compressed filesystem architecture for NAND flash-based embedded systems
ICCSA'07 Proceedings of the 2007 international conference on Computational science and its applications - Volume Part I
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Storage devices of embedded systems must have the characteristics of small size, great capacity, low-power consumption, lightweight, non-volatility, and vibration resistance. The NAND type flash memory, briefly denoted by NandFlash, is one of the more often-used storage devices. In terms of unit price, its cost is several dozen to hundred times more expensive than the traditionalHard-Disk (HD), since its storage space is limited. Therefore, to increase the storage space of NandFlash is great significance. In this paper, we improved the compression layer for NandFlash, which can be coordinated with the X-RL algorithm, to avoid overhead and reduce the degree of internal fragmentation in the compressed data pages. Hence, our proposed method can improve the compression rate. In the reading phase, we use the consecutive memory allocation method, which can reduce the superfluous time caused by non-consecutive access. Therefore, our architecture is meaningful and practical for embedded system applications.