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Proceedings Paper

Performance comparisons for several mapping patterns of constant weight modulation code in holographic data storage
Author(s): Duanrong Chen; Xiandeng Pei; Changsheng Xie
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Paper Abstract

An m:n binary constant weight modulation code (BCWMC) can simplify signal decision and improve bit-error rate (BER) performance in holographic digital data storage. Computer simulations results show that different mapping patterns onto a spatial light modulator (SLM) cause different BER performance for the same code word length of a BCWMC on a severe two-dimensional (2-D) inter-symbol interference (ISI) channel with additive white Gaussian noise (AWGN). We employ two of self-definition, the adjacent degree of a pixel array (ADPA) and the degree of deflective center (DDC), to explain the reason. The calculations by the two of self-definition are in line with the simulations.

Paper Details

Date Published: 17 September 2002
PDF: 4 pages
Proc. SPIE 4930, Advanced Optical Storage Technology, (17 September 2002); doi: 10.1117/12.483273
Show Author Affiliations
Duanrong Chen, Huazhong Univ. of Science and Technology (China)
Xiandeng Pei, Huazhong Univ. of Science and Technology (China)
Changsheng Xie, Huazhong Univ. of Science and Technology (China)

Published in SPIE Proceedings Vol. 4930:
Advanced Optical Storage Technology
Duanyi Xu; Seiya Ogawa, Editor(s)

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