Area‐efficient method to approximate two minima for LDPC decoders
Jaehwan Jung, Youngjoo Lee, In‐Cheol Park · Electronics Letters · 2014
A simple yet effective method is proposed to reduce the hardware complexity of min‐sum‐based low‐density parity‐check (LDPC) decoders. The proposed method finds the second minimum from the last four candidates of the first minimum, and can be implemented with only a few hardware components. In the case of 64 inputs, the proposed method reduces the comparators and 2‐to‐1 multiplexers by 48 and 64% compared to the conventional method that finds two exact minima.