Abstract
Polar coding is primarily used as a channel coding scheme for
downlink and uplink control information related to enhanced Mobile
Broadband Communication (eMBB) service. Therefore, this work evaluates
complexity and the Block Error Rate (BLER) performance of polar codes in
5G standard which use the concept of channel polarization. At first,
message segmentation is performed that is followed by Cyclic Redundancy
Check (CRC) encoding. Further, the input bits interleaving and
subchannel allocation are carried out. Furthermore, polar code encoding,
sub-block interleaving, and rate matching are performed. Moreover,
decoding is performed using CRC-assisted successive cancellation list
(CA-SCL) decoding. BLER for different list sizes and code rates are
demonstrated at various Signal-to-Noise (SNR) for both downlink and
uplink. Low complexity encoding and better BLER performance than
Low-Density Parity Check (LDPC) codes is also shown.
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