… Numerical results compare the performances of NOMA and OMA and illustrate the significance
of NOMA in various network scenarios. Important guidelines related to the selection of …

… the problem of user clustering, resource allocation and decoding order selection in a hybrid
NOMA-OMA system. In order to guarantee fairness among all the users, we maximize the …

… MIMO-OMA, a larger sum rate can be achieved by MIMO-NOMA via … users per cluster,
we derive the power split that maximizes the sum rate gap between MIMO-NOMA and MIMO-OMA. …

… users to form a NOMA cluster. Different from previous works, in this paper, we study the EE of
an uplink hybrid system with NOMA integrated into OMA (… simply applying NOMA among all …

… among the users of each cluster is defined as conventional MIMO-OMA or MIMO-… NOMA.
In addition, we define the highest channel gain user of each MIMO-NOMA cluster as the cluster-…

… user clustering and power allocation in a NOMA network, which is illustrated in Figure 4. At
time t = 0 , each channel gain of each user … of NOMA and OMA systems for two user clusters. It …

… NOMA can work better than OMA when users are clustered, and the following result has …
P-NOMA and C-NOMA compared to OMA service of OMA cannot be ignored. Fourth, two users …

… EE for a multi-cluster multi-user MIMONOMA system with pre-defined QoS for each user in a
… To compare NOMA with conventional OMA, we adopt OMA with equal degrees of freedom …

… 2) We develop an EM-based scheme for user clustering in downlink mmWave NOMA-based
system, … of the proposed method for both NOMA-based system and OMA-based system. In …

… users’ channels in mm-wave-NOMA systems, we develop a K-meansbased machine learning
algorithm for user clustering… relies on OMA where users within the same cluster are served …