Upper bounds on the rate of LDPC codes

  • Authors:
  • D. Burshtein;M. Krivelevich;S. Litsyn;G. Miller

  • Affiliations:
  • Dept. of Electr. Eng.-Syst., Tel Aviv Univ.;-;-;-

  • Venue:
  • IEEE Transactions on Information Theory
  • Year:
  • 2006

Quantified Score

Hi-index 755.08

Visualization

Abstract

We derive upper bounds on the rate of low-density parity-check (LDPC) codes for which reliable communication is achievable. We first generalize Gallager's (1963) bound to a general binary-input symmetric-output channel. We then proceed to derive tighter bounds. We also derive upper bounds on the rate as a function of the minimum distance of the code. We consider both individual codes and ensembles of codes.