Joint User Identification, Channel Estimation and Data Detection for Grant-Free NOMA in LEO Satellite Communications

C Zhang, Y Liu, J Hu, K Yang - IEEE Journal on Selected Areas …, 2024 - ieeexplore.ieee.org
Satellite Internet of things (S-IoT) aims to provide globally covered network services. In this
paper, we conceive an uplink grant-free random access scheme for S-IoT network, where …

QoS-Aware Performance Analysis of Full-Duplex RSMA Vehicle Road Cooperation Systems

X Li, X Wang, H Zhang, Y Xu, L Yang… - IEEE Internet of …, 2024 - ieeexplore.ieee.org
Vehicle road cooperation systems are the vital components of intelligent transportation
systems, destined to play an irreplaceable role in the future smart cites. Such systems are …

Grant-free communications with adaptive period for IIoT: Sparsity and correlation-based joint channel estimation and signal detection

Y Wang, X Zhu, EG Lim, Z Wei… - IEEE Internet of Things …, 2021 - ieeexplore.ieee.org
In this article, we investigate the grant-free communications with adaptive period for
Industrial Internet of Things, where only a fraction of devices is active at a time. To the best of …

Temporal correlation enhanced sparse activity detection in MIMO enabled grant-free NOMA

L Wu, Z Wang, P Sun, Y Yang - IEEE Transactions on Vehicular …, 2021 - ieeexplore.ieee.org
Exploiting the sparse user activity induced by sporadic transmission, compressed sensing
(CS) has been widely applied in multiple-input multiple-output (MIMO) enabled non …

Detection of burst users and symbols for grant-free communication in the presence of massive connected users

Y Wang, X Zhu, EG Lim, Z Wei… - IEEE Transactions on …, 2022 - ieeexplore.ieee.org
We investigate user activity detection (UAD) and symbol detection (SD) for grant-free
communication in the presence of massive users that are actively connected to base station …

Successive interference cancelation‐inspired channel estimation for downlink non‐orthogonal multiple access

L Sekokotoana, F Takawira… - Transactions on …, 2021 - Wiley Online Library
This paper proposes a channel estimation (CE) scheme composed of two successive
interference cancelation‐inspired approaches for a two‐user power domain downlink non …

Sparse Vector Coding Based Massive Grant-Free Access for Short-Packet Communication in IIoT

Y Luo, X Zhu, Y Zhang, Z Guo - ICC 2024-IEEE International …, 2024 - ieeexplore.ieee.org
In industrial Internet of Things (IIoT), short-packet communication requires higher reliability
and lower latency, enabling Grant-free (GF) access in massive machine-type communication …

Activity Detection for Grant-Free NOMA in Massive IoT Networks

M Mehrabi, M Mohammadkarimi… - 2023 International …, 2023 - ieeexplore.ieee.org
Recently, grant-free transmission paradigm has been introduced for massive Internet of
Things (IoT) networks to save both time and bandwidth and transmit the message with low …

Data-Driven Based Methods for Physical Layer Detection and Estimation in 5G and Beyond Wireless Communication Systems

M Mehrabi - 2023 - era.library.ualberta.ca
Abstract The fifth-generation (5G) mobile network is growing rapidly and is set to
revolutionize the way we communicate, work and live. It offers faster speeds, lower latency …