Combined Viterbi detector for a balanced code in page memories

  • Chen Duan-rong
  • Xie Chang-sheng
  • Pei Xian-deng


Based on the two path metrics being equal at a merged node in the trellis employed to describe a Viterbi detector for the detection of data encoded with a rate 6:8 balanced binary code in page-oriented optical memories, the combined Viterbi detector scheme is proposed to improve raw biterror rate performance by mitigating the occurrence of a twobit reversing error event in an estimated codeword for the balanced code. The effectiveness of the detection scheme is verified for different data quantizations using Monte Carlo simulations.

Key words

holographic data storage balanced code modulation code Viterbi algorithm path metric 

CLC number

TN 911. 21 


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Copyright information

© Springer 2004

Authors and Affiliations

  • Chen Duan-rong
    • 1
    • 2
  • Xie Chang-sheng
    • 1
  • Pei Xian-deng
    • 1
  1. 1.School of Computer Science and TechnologyHuazhong University of Science and TechnologyWuhan HubeiChina
  2. 2.School of Mathematics and Computer ScienceHubei UniversityWuhan HubeiChina

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