Soft-decision decoding of polar codes with Reed-Solomon kernel
The polarization rate and decoding complexity of polar codes depend on the kernel used.The problem of efficient soft-decision decoding of polar codes with Reed-Solomon kernel is considered in this paper.A decomposition of the kernel based on the cyclotomic FFT algo-rithm is proposed,which enables one to implement near-optimal evaluation of log-likelihood ra-tios in the successive cancellation decoding algorithm and reduce decoding complexity.The nu-merical simulation results show that the frame error rate performance of soft decision decoding exploiting Reed-Solomon kernel polar codes is superior to that of traditional Arikan kernel polar codes.