This chapter introduces a framework for understanding probabilistic decoding, and applies it to the decoding of low-density parity check (LDPC) codes. Section 1. sets up the preliminaries for soft iterative decoding. Section 2. explains the message-passing algorithm using normal graphs. Section 3. presents some basic nodes and modules. Section 4. introduces LPDC codes and discusses their decoding algorithm.


Equality Node LDPC Code Internal Edge Check Node Additive White Gaussian Noise Channel 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Springer Science+Business Media New York 2001

Authors and Affiliations

  • John L. Fan
    • 1
    • 2
  1. 1.Stanford UniversityUSA
  2. 2.Iospan WirelessUSA

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