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A flash compression layer for SmartMedia card systems

Title
A flash compression layer for SmartMedia card systems
Authors
Yim K.S.Bahn H.Koh K.
Ewha Authors
반효경
SCOPUS Author ID
반효경scopus
Issue Date
2004
Journal Title
IEEE Transactions on Consumer Electronics
ISSN
0098-3063JCR Link
Citation
vol. 50, no. 1, pp. 192 - 197
Indexed
SCI; SCIE; SCOPUS WOS scopus
Abstract
Flash memory based SmartMedia Card is becoming increasingly popular as data storage for mobile consumer electronics. Since flash memory is an order of magnitude more expensive than magnetic disks, data compression can be effectively used in managing flash memory based storage systems. However, compressed data management in flash memory is challenging because it only supports page-based I/Os. For example, when the size of compressed data is smaller than the page size, internal fragmentation occurs and this degrades the effectiveness of compression seriously. In this paper, we developed a flash compression layer (FCL) for the SmartMedia Card systems. FCL stores several small compressed pages into one physical page by using a write buffer. Based on prototype implementation and simulation studies, we show that the proposed system offers the storage of flash memory more than 140% of its original size and expands the write bandwidth significantly.
DOI
10.1109/TCE.2004.1277861
Appears in Collections:
엘텍공과대학 > 컴퓨터공학과 > Journal papers
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