Coverage Analysis of Downlink NOMA-Enabled Dense Networks With ISP-Based User Ordering

Application of Unsupervised Learning in Implementation of Joint Power and Index Modulation Access in V2X Systems

“…Recent reviews of the ordering approaches for NOMA can be found in [1] and [22]- [24], but they are tailored to singlecarrier communication systems. In [1], the authors consider partial CSI for power-domain multiplexing in NOMA that contains only the effects of path loss and shadowing.…”

“…The coverage probability of NOMA with user ordering based on the instantaneous channel power gain is studied in [22], while distance-based ordering is examined in [23]. Finally, a comparative analysis of Signal-to-Interference and Noise Ratio (SINR)-based coverage probability using the distance-based and the instantaneous CSI-based user ordering for two static NOMA users is studied in [24]. Unfortunately, the distancebased approach for user ordering cannot accurately capture the real channel state in complex environments, and the CSIbased approach is expensive and impractical for V2X systems.…”