Patent ID: 8675756
Filing Date: 2014-03-18
Classification: H03M,H04L

Abstract:
1. A method for identifying a corrupted received signal at a receiver, a received signal including a plurality of symbols, each of the plurality of symbols having a value of a Galois field associated therewith, the receiver being configured to store a logarithm of normalized probability mass functions and corresponding Galois field values for each of the plurality of symbols, the normalized probability mass functions being normalized with respect to a greatest probability mass function of a given symbol of the plurality of symbols, the method comprising: comparing, at the receiver, for each of the plurality of symbols, a logarithm of normalized probability of an n-th best probability value with a respective threshold, counting a number of the logarithms that exceed the respective threshold and generating, for each of the plurality of symbols, a score corresponding to the number; calculating a moving average of the scores; comparing the calculated moving average with an output threshold and flagging a just received one of the plurality of symbols as corrupted based upon the comparison; and updating the respective threshold when each of the plurality of symbols is received by at least