Reconfigurable Decoder for LDPC and Polar Codes

With low-density parity-check (LDPC) code and polar code selected as the standard codes for 5G eMBB scenario, one challenge is how to improve the hardware efficiency when both decoders are required by one system. Since LDPC and polar codes can be decoded with belief propagation (BP) algorithms, this similarity allows us to design a reconfigurable decoder, which can decode both codes at the cost of only one decoder. Numerical and implementation results are also given in this paper to show that the proposed decoder achieves higher hardware efficiency than stand-alone LDPC or polar decoder, without harming the error performance.