Abstract
NOMA is a group of non-orthogonal multiple access methods [1]. In this article, we talk about the Power Domain (Division) NOMA method. It is a non-orthogonal multiple access method with channel separation by power [2]. NOMA compaction uses controlled inter-channel interference, which is removed in the receiver when channel separation using special algorithms. PD-NOMA can be used in conjunction with various types of modulation, including OFDM.
Highlights
The advantage of PD-NOMA technology allows you to increase the adaptability in the allocation of communication resources by taking into account the additional domain for the distribution of channels
PD-NOMA allows you to increase the number of user channels per unit of time-frequency resource
This article discusses the influence of factors such as error estimation in channel, synchronization errors on the probability of a bit error when demodulating a PD-NOMA signal
Summary
The advantage of PD-NOMA technology allows you to increase the adaptability in the allocation of communication resources by taking into account the additional domain (power) for the distribution of channels. This increases the spectral efficiency of a multichannel communication system compared to orthogonal methods. 4) The big computational complexity of processing the NOMA signal due to the fact you have to demodulate (and decode, if possible) all the lower-level channels to get data from the required high-level channel. This article discusses the influence of factors such as error estimation in channel, synchronization errors on the probability of a bit error when demodulating a PD-NOMA signal
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