Journal of the Institute of Electronics Engineers of Korea SD (대한전자공학회논문지SD)

The Institute of Electronics and Information Engineers (대한전자공학회)
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Very Efficient 6-ary Runlength-Limited Code Approaching Shannon Capacity for Optical Storage Channels

Shannon Capacity에 근접하는 고효율의 6-ary Runlength-Limited Code

  • Jhee, Yoon-Kyoo (Dept. of Information Electronics Engineering, Ewha Womans University)
  • 지윤규 (이화여자대학교 전자정보통신학)
  • Published : 2008.03.25
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Abstract

Very efficient 6-ary runlength-limited codes for a six-level optical recording channel are presented when d = 3. The 6-ary(3, 15) code of rate 6/7 is given achieving coding efficiency of 98.87%. The efficiency of rate 13/15, (3, 20) code is 99.95%, which approaches the Shannon capacity. To increase the accurary of reading 6-ary signal, partial response modes are also investigated.

고효율의 d = 3인 6-ary runlength-limited code를 연구하였다. Rate가 6/7일 경우 98.87%의 효율을 얻을 수 있었고 rate가 13/15일 경우 Shannon capacity에 근접하는 무려 99.95%의 효율을 얻을 수 있었다. 또한 6-ary RLL code를 효과적으로 검출하기 위한 partial response mode에 관하여 고찰하였다.

Keywords

References

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