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.


Entropy Lution Summing Agram 


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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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