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http://dx.doi.org/10.7840/kics.2015.40.9.1667

1 Bit/Pixel Modulation Codes for Multi-Level Holographic Data Storage System  

Jeong, Seongkwon (Soongsil University School of Electronic Engineering)
Lee, Jaejin (Soongsil University School of Electronic Engineering)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.40, no.9, 2015 , pp. 1667-1671 More about this Journal
Abstract
Multi-level holographic data storage is a candidate for the next generation data storage system, since it can store more than one bit per pixel. It is possible to increase the number of codewords if the number of levels is increased, and the code with an appropriate selection of codewords can also increase the minimum distance. In this paper, we propose three multi-level modulation codes of the code rate 1 bit/pixel and compare the performance according to the minimum distance. The result shows that the code with small number of levels is better than that of large number of levels because it is hard to detect threshold value.
Keywords
Multi-level; Holographic data storage; modulation code; codeword; minimum distance;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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