Cited 0 time in webofscience Cited 0 time in scopus

RbWL: Recency-Based Static Wear Leveling for Lifetime Extension and Overhead Reduction in NAND Flash Memory Systems

Title
RbWL: Recency-Based Static Wear Leveling for Lifetime Extension and Overhead Reduction in NAND Flash Memory Systems
Authors
Hwang, Sang HoKwak, Jong Wook
Issue Date
2018-10
Citation
Ieice Transactions on Information and Systems, E101D(10), 2518-2522
Type
Article
Article Type
Article
Keywords
NAND flash memorystatic wear levelingelapsed timecold/hot data classification
ISSN
1745-1361
Abstract
In this letter, we propose a static wear leveling technique, called Recency-based Wear Leveling (RbWL). The basic idea of RbWL is to execute static wear leveling at minimum levels, because the frequent migrations of cold data by static wear leveling cause significant overhead in a NAND flash memory system. RbWL adjusts the execution frequency according to a threshold value that reflects the lifetime difference of the hot/cold blocks and the total lifetime of the NAND flash memory system. The evaluation results show that RbWL improves the lifetime of NAND flash memory systems by 52%, and it also reduces the overhead of wear leveling from 8% to 42% and from 13% to 51%, in terms of the number of erase operations and the number of page migrations of valid pages, respectively, compared with other algorithms.
URI
http://hdl.handle.net/20.500.11750/9380
DOI
10.1587/transinf.2018EDL8076
Publisher
Ieice-inst Electronics Information Communications Eng
Files:
There are no files associated with this item.
Collection:
ETC1. Journal Articles


qrcode mendeley

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE