Bubble check: a simplified algorithm for elementary check node processing in extended min-sum non-binary LDPC decoders

A simplified algorithm for the check node processing of extended min-sum non-binary LDPC decoders is proposed. This novel technique, named bubble check, can reduce the number of compare operations by a factor of three at the elementary check node level. As this significant complexity reduction is achieved without any performance loss, this technique becomes highly attractive for hardware implementation.