Multiple Scaling Extrinsic Soft Information for Improved Min-Sum Iterative Decoding of LDPC Codes

  • Authors:

  • Cheon Ho Lee;Young Chai Ko;Jun Heo

  • Affiliations:

  • -;-;-

  • Venue:
  • IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences
  • Year:
  • 2008

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Abstract

This paper presents an improved min-sum iterative decoding scheme for regular and irregular LDPC codes. The proposed decoding scheme scales the extrinsic soft information from variable nodes to check. Different scaling factors are applied for iterations and the scaling factors are obtained by a simplified vector optimization method.