Abstract
In this paper, we develop a method for closely estimating noise threshold values for ensembles of binary linear codes on the binary symmetric channel. Our method, based on the “typical pairs” decoding algorithm pioneered by Shannon, completely decouples the channel from the code ensemble. In this, it resembles the classical union bound, but unlike the union bound, our method is powerful enough to prove Shannon’s theorem for the ensemble of random linear codes. We apply our method to find numerical thresholds for the ensembles of low-density parity-check codes, and “repeat-accumulate” codes.
The work of Aji, Jin, Khandekar, and McEliece on this paper was supported by NSF grant no. CCR-9804793, and grants from Sony, Qualcomm, and Caltech–s Lee Center for Advanced Networking. David Mackay’s work is supported by the Gatsby Charitable Foundation.
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References
T.M. Cover and J.A. Thomas, Elements of Information Theory. New York: John Wiley and Sons, 1991.
D. Divsalar, H. Jin, and R. Mceliece, “Coding Theorems for ‘Turbo-Like’ Codes.” Proc. 1998 Allerton Conf., pp. 201–210.
L. Decreusefond and G. ZÉmor, “On the error-correcting capabilities of cycle codes of graphs,” Combinatorics, Probability, and Computing, vol. 6 (1997), pp.27–38.
R. Gallager, Low-Density Parity-Check Codes. Cambridge, Mass.: The M.LT. Press, 1963.
G.B. Horn, “The iterative decoding of cycle codes,” submitted to IEEE Trans. Inform. Theory.
D. Jungnickel and S.A. Vanstone, “Graphical codes revisited,” IEEE Trans. Inform. Theory, vol. IT-43 (Jan. 1997), pp. 136–146.
D.J.C. MacKay, “Good error-correcting codes based on very sparse matrices,” IEEE Trans. Inform. Theory, vol. IT-45 (March 1999), pp. 399–431.
R.J. Mceliece, The Theory of Information and Coding. Reading, Mass.: Addison-Wesley, 1977.
W.W. Peterson and E.J. Weldon, Jr., Error-Correcting Codes, 2nd. ed. Cambridge, Mass.: The MIT Press, 1972.
T. Richardson and R. Urbanke, “The capacity of low-density parity-check codes under message-passing decoding,” submitted to IEEE Trans. Inform. Theory.
C.E. Shannon, The Mathematical Theory of Information. Urbana, IL: University of lllinois Press, 1949 (reprinted 1998).
N. Wiberg, Codes and Decoding on General Graphs. Linköping Studies in Science and Technology. Dissertation, no. 440. Linköping University, Linköping, Sweden, 1996.
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© 2001 Springer-Verlag New York, Inc.
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Aji, S., Jin, H., Khandekar, A., MacKay, D.J.C., Mceliece, R.J. (2001). BSC Thresholds for Code Ensembles Based on “Typical Pairs” Decoding. In: Marcus, B., Rosenthal, J. (eds) Codes, Systems, and Graphical Models. The IMA Volumes in Mathematics and its Applications, vol 123. Springer, New York, NY. https://doi.org/10.1007/978-1-4613-0165-3_11
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DOI: https://doi.org/10.1007/978-1-4613-0165-3_11
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