A hybrid grant NOMA random access for massive MTC service

N Zhang, X Zhu - IEEE Internet of Things Journal, 2022 - ieeexplore.ieee.org
Nonorthogonal multiple access (NOMA) is classified into grant-based (GB) random access
(RA) and grant-free (GF) RA in 5G systems. GF NOMA RA allows user equipments (UE) to …

Deep-reinforcement-learning-based NOMA-aided slotted ALOHA for LEO satellite IoT networks

H Yu, H Zhao, Z Fei, J Wang, Z Chen… - IEEE Internet of Things …, 2023 - ieeexplore.ieee.org
The low earth orbit (LEO) satellites have received extensive attention as an essential
supplement to the terrestrial network for supporting global Internet of Things (IoT) services …

Design of autoconfigurable random access NOMA for URLLC industrial IoT networking

L Bing, Y Gu, T Aulin, J Wang - IEEE Transactions on Industrial …, 2023 - ieeexplore.ieee.org
Low-power devices are massively deployed to facilitate real-time sensing and data
transmission requested in low-power wide-area network. However, the dominating …

On throughput bounds of NOMA-ALOHA

J Choi - IEEE Wireless Communications Letters, 2021 - ieeexplore.ieee.org
In this letter, we focus on the throughput of random access with power-domain non-
orthogonal multiple access (NOMA) and derive bounds on the throughput. In particular, we …

MIMO-NOMA-aided healthcare IoT networking: Automated massive connectivity protocol

L Bing, Y Gu, L Hu, Y Yin, J Wang - IEEE Transactions on …, 2023 - ieeexplore.ieee.org
This paper addresses the design of multiple access protocol for healthcare Internet of things
(HIoT) networking, where devices are massively deployed to facilitate ubiquitous service …

MARL-based access control for grant-free non-orthogonal random access in UDN

J Youn, J Park, S Kim, S Ahn, Y Kim… - IEEE Internet of …, 2024 - ieeexplore.ieee.org
This study addresses the challenge of high-power collision rates in grant-free nonorthogonal
random access (GF-NORA) for ultramassive machine-type communication (umMTC) in …

Advanced NOMA assisted semi-grant-free transmission schemes for randomly distributed users

H Lu, X **e, Z Shi, H Lei, H Yang… - IEEE Transactions on …, 2022 - ieeexplore.ieee.org
Non-orthogonal multiple access (NOMA) assisted semi-grant-free (SGF) transmission has
recently received significant research attention due to its outstanding ability of serving grant …

A novel NOMA-enhanced SDT scheme for NR RedCap in 5G/B5G systems

Z Shi, J Liu - IEEE Transactions on Wireless Communications, 2023 - ieeexplore.ieee.org
Recently, Reduced Capability (RedCap) New Radio (NR) User Equipment (UE), which has
smaller cost, lower complexity, and longer battery life than normal NR UE, was introduced by …

Resilient Massive Access for SAGIN: A Deep Reinforcement Learning Approach

C Wang, M Pang, T Wu, F Gao, L Zhao… - IEEE Journal on …, 2024 - ieeexplore.ieee.org
In the visionary ideals of “Internet of Everything” and “Digital Twins”, the future 6G will deeply
integrate diverse heterogeneous networks such as satellite and aerial networks to support …

Stochastic geometry-based throughput analysis of user-specific power-level-constrained gf-noma

T Hirai, Y Ueda, N Wakamiya - IEEE Internet of Things Journal, 2024 - ieeexplore.ieee.org
This article proposes a stochastic geometry-based analytical framework for the throughput of
the grant-free power-domain nonorthogonal multiple access (GF-NOMA) with user-specific …