Low Complexity Resource Allocation in Frequency Domain Non-Orthogonal Multiple Access

This paper proposes low complexity resource allocation in frequency domain non-orthogonal multiple access where many devices with a base station. The number of the is assumed to be more than that for network capacity enhancement, which demanded massive machine type communications (mMTC). two types techniques, all are based on MIN-MAX approach. One them seeks nicer only channel gains. other technique applies message passing algorithm (MPA) better allocation. proposed techniques evaluated by computer simulation access. MPA achieves best bit error rate (BER) performance techniques. However, computational gains much smaller MPA, whereas BER about 0.1 dB inferior overloading ratio 1.5 at 10-4. They attain gain 10 10-4 ration 2.0. Their 10-16 as small conventional technique.