Throughput Maximization for Uplink IoT NOMA Systems with Efficient Resource Allocation

In upcoming future wireless networks, non-orthogonal multiple access (NOMA) has recently attracted attention in that it can increase the capacity. Along with NOMA, UAV is also an attracting technology in IoT networks with limited communication distance in that it can be deployed quickly. In UAV-assisted IoT networks, the core of NOMA scheme is the many-to-many matching of users and subchannels. In this paper, we propose subchannel matching scheme considering intra-interference and inter-interference generated by applying NOMA. Analysis proves that proposed algorithm converges within a finite number of iterations, and conclusion suggests direction for future research in UAV-assisted IoT network with NOMA.