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[Author] Toshio ISHIZAKA(1hit)

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  • Hardware Implementation of the High-Dimensional Discrete Torus Knot Code

    Yuuichi HAMASUNA  Masanori YAMAMURA  Toshio ISHIZAKA  Masaaki MATSUO  Masayasu HATA  Ichi TAKUMI  

     
    PAPER

      Vol:
    E84-A No:4
      Page(s):
    949-956

    The hardware implementation of a proposed high dimensional discrete torus knot code was successfully realized on an ASIC chip. The code has been worked on for more than a decade since then at Aichi Prefectural University and Nagoya Institutes of Technology, both in Nagoya, Japan. The hardware operation showed the ability to correct the errors about five to ten times the burst length, compared to the conventional codes, as expected from the code configuration and theory. The result in random error correction was also excellent, especially at a severely degraded error rate range of one hundredth to one tenth, and also for high grade characteristic exceeding 10-6. The operation was quite stable at the worst bit error rate and realized a high speed up to 50 Mbps, since the coder-decoder configuration consisted merely of an assemblage of parity check code and hardware circuitry with no critical loop path. The hardware architecture has a unique configuration and is suitable for large scale ASIC design. The developed code can be utilized for wider applications such as mobile computing and qualified digital communications, since the code will be expected to work well in both degraded and high grade channel situations.