A unified framework for non-orthogonal multiple access

X Yue, Z Qin, Y Liu, S Kang… - IEEE Transactions on …, 2018 - ieeexplore.ieee.org
This paper proposes a unified framework of non-orthogonal multiple access (NOMA)
networks. Stochastic geometry is employed to model the locations of spatially NOMA users …

Enhanced uplink non-orthogonal multiple access for 5G and beyond systems

W Liu, X Hou, L Chen - Frontiers of Information Technology & Electronic …, 2018 - Springer
Uplink non-orthogonal multiple access (NOMA) is a promising technique to meet the
requirements of the fifth generation (5G) and beyond systems. Various NOMA schemes have …

Down-link NOMA networks in the presence of IQI and imperfect SIC: Receiver design and performance analysis

MM Alsmadi, NA Ali, M Hayajneh… - IEEE Transactions on …, 2020 - ieeexplore.ieee.org
This article addresses the practical aspects that may affect the performance of down-link non-
orthogonal multiple access (NOMA) systems. The system performance of two down-link …

Hyperparameter-free receiver for grant-free NOMA systems with MIMO-OFDM

T Hara, H Iimori, K Ishibashi - IEEE Wireless Communications …, 2020 - ieeexplore.ieee.org
We introduce a new grant-free non-orthogonal multiple access (GF-NOMA) scheme, which
unlike conventional approaches, spreads over the frequency domain instead of the time …

Iterative sub-band and power allocation in downlink multiband NOMA

D Goswami, SS Das - IEEE Systems Journal, 2020 - ieeexplore.ieee.org
Nonorthogonal multiple access (NOMA) promises higher throughput than the conventional
orthogonal access by multiplexing the signal of a weak user with that of a strong one …

Over-the-air implementation of uplink NOMA

S Abeywickrama, L Liu, Y Chi… - GLOBECOM 2017-2017 …, 2017 - ieeexplore.ieee.org
Though the concept of non-orthogonal multiple access (NOMA) was proposed several years
ago, the performance of uplink NOMA has only been verified in theory, but not in practice …

Unveiling the importance of SIC in NOMA systems—Part II: New results and future directions

Z Ding, R Schober, HV Poor - IEEE Communications Letters, 2020 - ieeexplore.ieee.org
In most existing works on non-orthogonal multiple access (NOMA), the decoding order of
successive interference cancellation (SIC) is prefixed and based on either the users' …

Dynamic user grouping-based NOMA over Rayleigh fading channels

Y Yin, Y Peng, M Liu, J Yang, G Gui - IEEE Access, 2019 - ieeexplore.ieee.org
With the development of wireless communications and internet of things (IoT), non-
orthogonal multiple access (NOMA) has been considered as one of effective schemes to …

Deep reinforcement learning based dynamic user access and decode order selection for uplink NOMA system with imperfect SIC

Z Shi, X Xie, H Lu, H Yang, J Cai - IEEE Wireless …, 2020 - ieeexplore.ieee.org
Perfect successive interference cancellation (pSIC) is often assumed in power domain Non-
orthogonal multiple access (NOMA) systems. Besides, signals are generally decoded in the …

Multi-user connection performance assessment of NOMA schemes for beyond 5G

B Wang, C Yan, W Liu, H Zhang - China Communications, 2020 - ieeexplore.ieee.org
Non-orthogonal multiple access (NOMA) is proved to be useful to satisfy the requirements of
beyond 5th generation such as massive multi-user connection. Here we compare the …