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Proceedings Paper

Performance evaluation of asymmetrical run-length-limited code for optical disks
Author(s): Takatoshi Kato; Yukari Katayama; Hideyuki Yamakawa; Takushi Nishiya; Tadashi Maeda
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Paper Abstract

A performance comparison between a rate 8 / 14 asymmetrical run-length-limited (RLL) code and the EFMPlus code for optical disks is described. The limited condition of the rate 8 / 14 asymmetrical code is. This code has a better detection window size than the EFMPlus code because of the 14.3 percent greater efficiency of its coding rate. We describe the bit error rate (BER) performance and the tilt and defocus tolerance of the rate 8 / 14 ARL code. Compared to the EFMPlus code, the rate 8 / 14 ARL code has a 0.7-dB gain in the required S / N at a BER of 10-4. The rate 8 / 14 ARL code is also more robust against tilt and defocus.

Paper Details

Date Published: 10 January 2002
PDF: 8 pages
Proc. SPIE 4342, Optical Data Storage 2001, (10 January 2002); doi: 10.1117/12.453388
Show Author Affiliations
Takatoshi Kato, Hitachi Ltd. (Japan)
Yukari Katayama, Hitachi Ltd. (Japan)
Hideyuki Yamakawa, Hitachi Ltd. (Japan)
Takushi Nishiya, Hitachi Ltd. (Japan)
Tadashi Maeda, Hitachi Ltd. (Japan)


Published in SPIE Proceedings Vol. 4342:
Optical Data Storage 2001

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