• Title/Summary/Keyword: PVSL(Prototyue Vectors Selecting Logic)

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Realization of Forward Real-time Decoder using Sliding-Window with decoding length of 6 (복호길이 6인 Sliding-Window를 적용한 순방향 실시간 복호기 구현)

  • Park Ji woong
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.30 no.4C
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    • pp.185-190
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    • 2005
  • In IS-95 and IMT-2000 systems using variable code rates and constraint lengths, this paper limits code rate 1/2 and constraint length 3 and realizes forward real-time decoder using Sliding-Window with decoding length 6 and PVSL(Prototype Vector Selecting Logic), LVQ(Learning Vector Quantization) in Neural Network. In comparison condition to theoretically constrained AWGN channel environment at $S/(N_{0}/2)=1$ I verified the superiority of forward real-time decoder through hard-decision and soft-decision comparison between Viterbi decoder and forward real-time decoder such as BER and Secure Communication and H/W Structure.