Sparsity constrained joint activity and data detection for massive access: A difference-of-norms penalty framework
Grant-free random access is a promising mechanism to support modern massive machine-
type communications in which devices are sporadically active with small payloads. Under …
type communications in which devices are sporadically active with small payloads. Under …
A Scalable Deep-Learning-Based Active User Detection Approach for SEU-Assisted Cell-Free Massive MIMO Systems
L Diao, H Wang, J Li, P Zhu, D Wang… - IEEE Internet of Things …, 2023 - ieeexplore.ieee.org
Massive ultrareliable and low-latency communications (mURLLC) is an emerging and
dominate traffic service in 6G. To reduce the signaling overhead and access delay, grant …
dominate traffic service in 6G. To reduce the signaling overhead and access delay, grant …
Covariance-based activity detection in cooperative multi-cell massive MIMO: Scaling law and efficient algorithms
This paper focuses on the covariance-based activity detection problem in a multi-cell
massive multiple-input multiple-output (MIMO) system. In this system, active devices transmit …
massive multiple-input multiple-output (MIMO) system. In this system, active devices transmit …
Heterogeneous transformer: A scale adaptable neural network architecture for device activity detection
To support modern machine-type communications, a crucial task during the random access
phase is device activity detection, which is to identify the active devices from a large number …
phase is device activity detection, which is to identify the active devices from a large number …
A Unified Activity Detection Framework for Massive Access: Beyond the Block-Fading Paradigm
The wireless channel changes continuously with time and frequency and the block-fading
assumption, which is popular in many theoretical analyses, never holds true in practical …
assumption, which is popular in many theoretical analyses, never holds true in practical …
Covariance-based activity detection with orthogonal pilot sequences for cell-free distributed massive MIMO systems
J Li, H Wang, P Zhu, D Wang… - IEEE Transactions on …, 2022 - ieeexplore.ieee.org
The grant-free random access (GFRA) has been the mainstream access scheme in the
massive ultra-reliable low-latency communications (mURLLC). Device activity detection is …
massive ultra-reliable low-latency communications (mURLLC). Device activity detection is …
Statistical device activity detection for OFDM-based massive grant-free access
W Jiang, Y Jia, Y Cui - IEEE Transactions on Wireless …, 2022 - ieeexplore.ieee.org
Existing works on grant-free access, proposed to support massive machine-type
communication (mMTC) for the Internet of Things (IoT), mainly concentrate on narrow band …
communication (mMTC) for the Internet of Things (IoT), mainly concentrate on narrow band …
MLE-based device activity detection under Rician fading for massive grant-free access with perfect and imperfect synchronization
Most existing studies on massive grant-free access, proposed to support massive machine-
type communications (mMTC) for the Internet of things (IoT), assume Rayleigh fading and …
type communications (mMTC) for the Internet of things (IoT), assume Rayleigh fading and …
Hierarchical MTC user activity detection and channel estimation with unknown spatial covariance
This paper addresses the joint user identification and channel estimation (JUICE) problem in
machine-type communications under the practical spatially correlated channels model with …
machine-type communications under the practical spatially correlated channels model with …
Scaling law analysis for covariance based activity detection in cooperative multi-cell massive MIMO
This paper studies the covariance based activity detection problem in a multi-cell massive
multiple-input multiple-output (MIMO) system, where the active devices transmit their …
multiple-input multiple-output (MIMO) system, where the active devices transmit their …