Massive connectivity with massive MIMO—Part I: Device activity detection and channel estimation

L Liu, W Yu - IEEE Transactions on Signal Processing, 2018 - ieeexplore.ieee.org
This two-part paper considers an uplink massive device communication scenario in which a
large number of devices are connected to a base station (BS), but user traffic is sporadic so …

Sparse activity detection for massive connectivity

Z Chen, F Sohrabi, W Yu - IEEE Transactions on Signal …, 2018 - ieeexplore.ieee.org
This paper considers the massive connectivity application in which a large number of
devices communicate with a base-station (BS) in a sporadic fashion. Device activity …

Towards massive connectivity support for scalable mMTC communications in 5G networks

C Bockelmann, NK Pratas, G Wunder, S Saur… - IEEE …, 2018 - ieeexplore.ieee.org
The fifth generation of cellular communication systems is foreseen to enable a multitude of
new applications and use cases with very different requirements. A new 5G multi-service air …

Sparsity learning-based multiuser detection in grant-free massive-device multiple access

T Ding, X Yuan, SC Liew - IEEE Transactions on Wireless …, 2019 - ieeexplore.ieee.org
In this paper, we study the multiuser detection (MUD) problem for a grant-free massive-
device multiple access (MaDMA) system, where a large number of single-antenna user …

Deep-learned approximate message passing for asynchronous massive connectivity

W Zhu, M Tao, X Yuan, Y Guan - IEEE Transactions on …, 2021 - ieeexplore.ieee.org
This paper considers the massive connectivity problem in an asynchronous grant-free
random access system, where a huge number of devices sporadically transmit data to a …

Massive random access with sporadic short packets: Joint active user detection and channel estimation via sequential message passing

JC Jiang, HM Wang - IEEE Transactions on Wireless …, 2021 - ieeexplore.ieee.org
This paper considers an uplink massive machine-type communication (mMTC) scenario,
where a large number of user devices are connected to a base station (BS). A novel grant …

A survey: Nonorthogonal multiple access with compressed sensing multiuser detection for mMTC

M Alam, Q Zhang - Wireless Communications and Mobile …, 2021 - Wiley Online Library
One objective of the 5G communication system and beyond is to support massive machine
type of communication (mMTC) to propel the fast growth of diverse Internet of Things use …

Comprehensive grant-free random access for massive & low latency communication

AT Abebe, CG Kang - 2017 IEEE International Conference on …, 2017 - ieeexplore.ieee.org
In this paper, we introduce a comprehensive grant-free random access scheme for machine-
type communication which is characterized by massive connectivity and low latency. The …

Message passing-based joint user activity detection and channel estimation for temporally-correlated massive access

W Zhu, M Tao, X Yuan, Y Guan - IEEE Transactions on …, 2023 - ieeexplore.ieee.org
This paper studies the user activity detection and channel estimation problem in a
temporally-correlated massive access system where a very large number of users …

Prioritized resource reservation for reducing random access delay in 5G URLLC

YJ Chen, LY Cheng, LC Wang - 2017 IEEE 28th annual …, 2017 - ieeexplore.ieee.org
This paper proposes a resource reservation scheme to reduce random access delay for
Ultra-Reliable and Low-Latency Communication (URLLC) traffic. URLLC has been …