Simulation of the Transport Channel With Polar Codes for the 5G Mobile Communication

This paper discusses the polar code is applied to the downlink control information and uplink control information to enhanced mobile broadband, as well as to broadcast channel. Channel coding contains a set of procedures for error detection, error correction, rate matching, bit interleaving and mapping of information to physical control channels or transport layer. The downlink control information model with polar coding and modulation types provided by the standard (QPSK, 16-QAM, 64-QAM, 256-QAM) for the transmission channel with additive white Gaussian noise is investigated in the article. This model presents the results of bit error rate for coding scheme with different code rates. The structural scheme of the decision model on the modulation mode of the digital communication system is analyzed in the paper. Dependencies of bit error rate on the effective rate of the polar code with different types of modulation are explored. The modulation mode selection algorithm for code rate R=0.5 is developed on the basis of the obtained dependencies.