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Proceedings Paper

Modulation code and PRML detection for multi-level run-length-limited DVD channels
Author(s): Hua Hu; Duanyi Xu; Longfa Pan
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Paper Abstract

Multi-level run-length-limited (ML-RLL) modulation on optical storage channels is a promising method to increase the recording density effectively. In this paper, some experimental results of 4-level RLL modulation on digital versatile disc (DVD) read-only discs are firstly presented. A new DC-free 4-ary RLL (2, 8) code with code rate of 8/10 (bits/symbol) is designed, and partial-response maximum-likelihood (PRML) detection is used to evaluate the bit error rate (BER) performance of multi-level readout signals. Experimental and simulation results show the feasibility of 4-level RLL modulation on DVD channels.

Paper Details

Date Published: 22 June 2006
PDF: 6 pages
Proc. SPIE 6282, Optical Data Storage 2006, 628228 (22 June 2006); doi: 10.1117/12.685200
Show Author Affiliations
Hua Hu, Tsinghua Univ. (China)
Duanyi Xu, Tsinghua Univ. (China)
Longfa Pan, Tsinghua Univ. (China)


Published in SPIE Proceedings Vol. 6282:
Optical Data Storage 2006
Ryuichi Katayama; Tuviah E. Schlesinger, Editor(s)

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