发明申请
US20090249160A1 METHODS AND APPARATUS FOR POWER REDUCTION IN ITERATIVE DECODERS 有权
在迭代解码器中减少功率的方法和装置

  • 专利标题: METHODS AND APPARATUS FOR POWER REDUCTION IN ITERATIVE DECODERS
  • 专利标题(中): 在迭代解码器中减少功率的方法和装置
  • 申请号: US11921494
    申请日: 2005-06-27
  • 公开(公告)号: US20090249160A1
    公开(公告)日: 2009-10-01
  • 发明人: Wen GaoJoshua Lawrence Koslov
  • 申请人: Wen GaoJoshua Lawrence Koslov
  • 国际申请: PCT/US2005/023007 WO 20050627
  • 主分类号: H03M13/29
  • IPC分类号: H03M13/29 G06F11/10
METHODS AND APPARATUS FOR POWER REDUCTION IN ITERATIVE DECODERS
摘要:
There are provided a method, an apparatus and a computer program product for reducing power consumption in an iterative decoder, for example, for low-density parity-check (LDPC) codes or turbo codes. The apparatus includes a memory device and an iteration termination device. The memory device is for storing a decoded codeword for a current iteration, for each iteration of the iterative decoder prior to a maximum number of iterations. The iteration termination device is for comparing the decoded codeword for the current iteration to a previously stored decoded codeword for the previous iteration, incrementing a confidence value when the decoded codeword for the current iteration matches the previously stored decoded codeword for the previous iteration, and terminating further iterations of the iterative decoder when the confidence value exceeds a pre-specified threshold value.
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