Adaptation of Signal with NOMA and Polar Codes to the Rayleigh Channel

Polar codes are one of the most effective methods error correction coding. Currently, these used in 5G communication systems and main candidate for 6G. Symmetry plays an important role coding decoding algorithms polar codes. Modulation multiple access basis a physical layer along with Non-Orthogonal Multiple Access (NOMA) promising technology future telecommunication systems. They allow increase both spectral efficiency quantity subscribers system. In this paper, we consider system codes, traditional orthogonal (OMA), NOMA. The channel multipath propagation, which can be defined by Rayleigh model, is especially difficult to transmit. We propose method adapting signals state based on analysis matrix permutation logical subchannels. results obtained demonstrate compared classical solutions do not really computational complexity signal processing decoding.