Likelihood-based error correction for holographic storage systems

Mark A Neifeld, Wu Chun Chou

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We consider a volume holographic memory (VHM) system that is corrupted by interpixel interference (IPI) and detector noise. We compare hard-decision Reed-Solomon (RS) decoding with both hard- and soft-decision algorithms for 2D array decoding. RS codes are shown to provide larger VHM storage capacity and density as compared with array codes when hard-decision methods are employed. A new likelihood-based soft-decision algorithm for 2D array decoding is described. The new decoding algorithm is motivated by iterative turbo-decoding methods and is capable of incorporating a priori knowledge of the corrupting IPI channel during decoding. The new algorithm is shown to offer VHM capacity and density performance superior to hard-decision RS methods.

Original languageEnglish (US)
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
PublisherSociety of Photo-Optical Instrumentation Engineers
Pages48-53
Number of pages6
Volume3802
StatePublished - 1999
EventProceedings of the 1999 Advanced Optical Data Storage: Materials, Systems, and Interafces to Computers - Denver, CO, USA
Duration: Jul 20 1999Jul 22 1999

Other

OtherProceedings of the 1999 Advanced Optical Data Storage: Materials, Systems, and Interafces to Computers
CityDenver, CO, USA
Period7/20/997/22/99

Fingerprint

decoding
Error correction
Decoding
Data storage equipment
Reed-Solomon codes
interference
Detectors
detectors

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

Cite this

Neifeld, M. A., & Chou, W. C. (1999). Likelihood-based error correction for holographic storage systems. In Proceedings of SPIE - The International Society for Optical Engineering (Vol. 3802, pp. 48-53). Society of Photo-Optical Instrumentation Engineers.

Likelihood-based error correction for holographic storage systems. / Neifeld, Mark A; Chou, Wu Chun.

Proceedings of SPIE - The International Society for Optical Engineering. Vol. 3802 Society of Photo-Optical Instrumentation Engineers, 1999. p. 48-53.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Neifeld, MA & Chou, WC 1999, Likelihood-based error correction for holographic storage systems. in Proceedings of SPIE - The International Society for Optical Engineering. vol. 3802, Society of Photo-Optical Instrumentation Engineers, pp. 48-53, Proceedings of the 1999 Advanced Optical Data Storage: Materials, Systems, and Interafces to Computers, Denver, CO, USA, 7/20/99.
Neifeld MA, Chou WC. Likelihood-based error correction for holographic storage systems. In Proceedings of SPIE - The International Society for Optical Engineering. Vol. 3802. Society of Photo-Optical Instrumentation Engineers. 1999. p. 48-53
Neifeld, Mark A ; Chou, Wu Chun. / Likelihood-based error correction for holographic storage systems. Proceedings of SPIE - The International Society for Optical Engineering. Vol. 3802 Society of Photo-Optical Instrumentation Engineers, 1999. pp. 48-53
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