HammingDecoder

VisualSim.actor.lib.comm
Class HammingDecoder

• public class HammingDecoder
• extends VisualSim.actor.lib.Transformer

Decode a (n, k) Hamming code, where n is specified by parameter codedRate and k is specified by parameter uncodedRate.

The Hamming code can correct one-bit error. To encode a Hamming code, the HammingCoder consumes k information bits during each firing and consider them as a row vector X. Its Hamming code is Y = X * G.

If there is no error in Y, Y * HT should be a zero vector of length n - k. Otherwise S = Y * HT is called the syndrome. Let S be the i-th column of H. The HammingDecoder declares there is an error at the i-th element of Y.

For more information on Hamming codes, see HammingCoder and Proakis, Digital Communications, Fourth Edition, McGraw-Hill, 2001, pp. 448-450.

• Since:
• VisualSim3.0
• See Also:
• HammingCoder

uncodedRate

public VisualSim.data.expr.Parameter uncodedRate

• Integer defining the uncode block size. It should be a positive integer. Its default value is the integer 4.

codedRate

public VisualSim.data.expr.Parameter codedRate

• Integer defining the Hamming code block size. This parameter should be a non-negative integer. Its default value is the integer 7.
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