Patent ID: 6473010
Filing Date: 2002-10-29
Classification: H03M

Abstract:
A method for determining error correction code failure probability of an iterative decoding algorithm for a pre-selected range of signal-to-noise ratio values and a pre-selected interleaved error correction code, comprising the steps of:(a) determining a signal-to-noise ratio value range where a bit error rate of the iterative decoding algorithm with respect to signal-to-noise ratio defines an error floor region; (b) determining a probability Pdmin of a minimal distance error event occurring in the decoding algorithm for at least one signal-to-noise ratio value within the signal-to-noise ratio value range determined in step (a); (c) determining probability wi that a minimal distance error event corrupts i bytes in the same interleave of the pre-selected error correction code; and (d) determining the error correction code failure probability for the signal-to-noise ratio value range determined in step (a) based on the probabilities determined in steps (b) and (c).