Successive Cancellation Polar Decoder Implementation using Processing Elements

Channel coding is key factor of error free communication. Polar code is selected as channel control code for 5G wireless system in third generation partnership project New Radio – 3GPP NR. Polar code has ability to use all channel capacity as contrast with low density parity check (LDPC) and turbo code. Successive cancellation (SC) decoder is basic polar code decoder which works sequentially. Due to sequential in nature of SC decoder, latency is high. SC polar decoder using processing element like f-function node, g-function node and partial sum function node is designed in this paper. The connections of these processing elements are followed to polar code decoding circuit graph. SC polar decoder is designed by two ways, the first is without component code and other is with component code (structural way). Processing elements and SC polar decoder VLSI architectures generated by Xilinx platform are shown in this paper.