Massive MIMO wireless networks: An overview

N Hassan, X Fernando - Electronics, 2017 - mdpi.com
Massive multiple-input-multiple-output (MIMO) systems use few hundred antennas to
simultaneously serve large number of wireless broadband terminals. It has been …

A tutorial on decoding techniques of sparse code multiple access

S Chaturvedi, Z Liu, VA Bohara, A Srivastava… - IEEE …, 2022 - ieeexplore.ieee.org
Sparse Code Multiple Access (SCMA) is a disruptive code-domain non-orthogonal multiple
access (NOMA) scheme to enable future massive machine-type communication networks …

Low complexity receiver for uplink SCMA system via expectation propagation

X Meng, Y Wu, Y Chen, M Cheng - 2017 IEEE wireless …, 2017 - ieeexplore.ieee.org
Sparse code multiple access (SCMA) scheme is considered to be one promising non-
orthogonal multiple access technology for the future fifth generation (5G) communications …

Capacity optimality of AMP in coded systems

L Liu, C Liang, J Ma, L ** - IEEE Transactions on Information …, 2021 - ieeexplore.ieee.org
This paper studies a large random matrix system (LRMS) model involving an arbitrary signal
distribution and forward error control (FEC) coding. We establish an area property based on …

Decentralized signal detection via expectation propagation algorithm for uplink massive MIMO systems

Z Zhang, H Li, Y Dong, X Wang… - IEEE Transactions on …, 2020 - ieeexplore.ieee.org
The existing centralized antenna array architecture and the corresponding centralized
baseband processing based signal detection algorithms incur huge burden on the raw …

Near-optimal MIMO-SCMA uplink detection with low-complexity expectation propagation

P Wang, L Liu, S Zhou, G Peng, S Yin… - IEEE Transactions on …, 2019 - ieeexplore.ieee.org
Multiple-input multiple-output (MIMO) and sparse code multiple access (SCMA) can be
combined to achieve higher spectrum efficiency and more access for users, which also …

MIMO hybrid PD-SCMA NOMA uplink transceiver system

S Chege, T Walingo - IEEE Access, 2022 - ieeexplore.ieee.org
The application of multiple-input multiple-output (MIMO) on power domain sparse code
multiple access (PD-SCMA) systems would enhance their performance by increasing the …

Expectation Propagation-Based Parallel Iterative Detection and Decoding for Massive MIMO

X Tan, Q Qian, Y Cai, Z Zhang, Y Huang… - IEEE Transactions …, 2023 - ieeexplore.ieee.org
Expectation propagation (EP) has recently been considered with iterative detection and
decoding (IDD) to enhance the bit error rate (BER) performance for coded massive Multiple …

Low-complexity dynamic channel estimation in multi-antenna grant-free NOMA

F Sagheer, F Lehmann… - 2022 IEEE 95th Vehicular …, 2022 - ieeexplore.ieee.org
In grant-free non-orthogonal multiple access, the set of active users is unknown a priori. We
address the challenging problem of dynamic channel estimation in this context. Assuming …

Wirtinger calculus-based expectation propagation in latent variable models applied to grant-free NOMA

F Sagheer, F Lehmann… - IEEE Signal Processing …, 2024 - ieeexplore.ieee.org
Grant-free non-orthogonal multiple access is an emerging communication paradigm, where
devices transmit to an access point without explicit permission. However, unknown user …