Patent ID: 8451952
Filing Date: 2013-05-28
Classification: H03M,H04L

Abstract:
1. A receiver for iteratively decoding a received signal, said receiver comprising: a demodulator for iteratively generating input soft values based on the received signal and extrinsic information; a decoder for iteratively decoding the input soft values from the demodulator to generate output soft values and a corresponding codeword; a feedback path connecting an output of the decoder to an input of the demodulator to feed back said extrinsic information to said demodulator; a feed-forward path connecting an output of the demodulator to an input of the decoder to feed forward said input soft values to the decoder; and an attenuator in at least one of the feed-forward path and the feedback path to attenuate, based on a number of iterations performed by the demodulator and the decoder, the influence of the extrinsic information on the generation of the input soft values by the demodulator.