TR2005-090

Iterative Decoding Using Replicas


    •  Juntan Zhang, Yige Wang, Marc Fossorier, Jonathan S. Yedidia, "Iterative Decoding Using Replicas", Tech. Rep. TR2005-090, Mitsubishi Electric Research Laboratories, Cambridge, MA, August 2005.
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      • @techreport{MERL_TR2005-090,
      • author = {Juntan Zhang and Yige Wang and Marc Fossorier and Jonathan S. Yedidia},
      • title = {Iterative Decoding Using Replicas},
      • institution = {MERL - Mitsubishi Electric Research Laboratories},
      • address = {Cambridge, MA 02139},
      • number = {TR2005-090},
      • month = aug,
      • year = 2005,
      • url = {http://www.merl.com/publications/TR2005-090/}
      • }
  • Research Area:

    Algorithms


Replica shuffled versions of iterative decoders of low-density parity-check codes and turbo codes are presented in this paper. The proposed schemes can converge faster than standard and plain shuffled approaches. Two methods, density evolution and EXIT charts, are used to analyze the performance of the proposed algorithms. Both theoretical analysis and simulations show that the new schedules offer good trade-offs with respect to performance, complexity, latency and connectivity.