Likelihood re-ordering and feedback correction for reduced error propagation in decision-feedback schemes via difference equations.

A decision correction scheme is proposed to replace the unconfident decisions in the feedback loops to mitigate the effect of error propagation in a decision feedback scheme. A likelihood based reliability ordering is also introduced to further improve the reliability of feedback stages. With a negligible additional complexity cost, the proposed scheme is able to effectively mitigate the error propagation and achieve significant performance gains. [ABSTRACT FROM AUTHOR]