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http://dx.doi.org/10.7840/kics.2014.39A.10.610

4-level Error Correcting Modulation Codes for Holographic Data Storage System  

Lee, Jaehun (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.39A, no.10, 2014 , pp. 610-612 More about this Journal
Abstract
Mutilevel holographic data storage systems have a big advantage for capacity since it can store more than one bit per pixel. For instance, 2/3 modulation code stores 2/3(symbol/pixel) and 4/3(bit/pixel). Then it is about 1.3 bits per one pixel. In this paper, we propose two 4-level modulation codes, which have the minimum Euclidean distances of 3 and 4, respectively. The proposed codes perform better than random data. The performance of larger minimum distance code shows better than that of shorter one.
Keywords
Multilevel; Holographic; Modulation Codes; Error Correction;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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