[HTML][HTML] Help from space: Grant-free massive access for satellite-based IoT in the 6G era

N Ye, J Yu, A Wang, R Zhang - Digital Communications and Networks, 2022 - Elsevier
Abstract The Sixth-Generation (6G) standard for wireless communications is expected to
realize ubiquitous coverage for massive Internet of Things (IoT) networks by 2030. Satellite …

Massive access in space-based Internet of Things: Challenges, opportunities, and future directions

J Jiao, S Wu, R Lu, Q Zhang - IEEE Wireless Communications, 2021 - ieeexplore.ieee.org
The integration of fifth generation (5G) mobile network and satellite communication promises
a promotion on the interconnection of everything, and has become one of the key …

Grant-free NOMA-OTFS paradigm: Enabling efficient ubiquitous access for LEO satellite Internet-of-Things

Z Gao, X Zhou, J Zhao, J Li, C Zhu, C Hu, P Xiao… - IEEE …, 2023 - ieeexplore.ieee.org
With the blooming of Internet-of-Things (IoT), we are witnessing an explosion in the number
of IoT terminals, triggering an unprecedented demand for ubiquitous wireless access …

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 …

Superimposed pilot code-domain NOMA scheme for satellite-based Internet of Things

J Jiao, J Zhou, S Wu, Q Zhang - IEEE Systems Journal, 2020 - ieeexplore.ieee.org
Satellite-based Internet of Things (S-IoT) is regarded as an effective solution to enable
ubiquitous connectivity in a global coverage and cost-effective manner for massive machine …

Low-Correlation Superimposed Pilot Grant-free Massive Access for Satellite Internet of Things

L Xu, J Jiao, Y Wang, S Wu, R Lu… - IEEE Transactions on …, 2023 - ieeexplore.ieee.org
Satellite Internet of Things (S-IoT) with low Earth orbit satellites has become an effective
solution for providing global coverage for massive machine type communications (mMTC) …

Robust design for NOMA-based multibeam LEO satellite Internet of Things

J Chu, X Chen, C Zhong… - IEEE Internet of Things …, 2020 - ieeexplore.ieee.org
In this article, we investigate the issue of massive access in a beyond fifth-generation (B5G)
multibeam low-Earth orbit (LEO) satellite Internet-of-Things (IoT) network in the presence of …

Grant-free non-orthogonal multiple access for IoT: A survey

MB Shahab, R Abbas… - … Surveys & Tutorials, 2020 - ieeexplore.ieee.org
Massive machine-type communications (mMTC) is one of the main three focus areas in the
5th generation (5G) of wireless communications technologies to enable connectivity of a …

Ultranarrowband waveform for IoT direct random multiple access to GEO satellites

CA Hofmann, A Knopp - IEEE Internet of Things Journal, 2019 - ieeexplore.ieee.org
Direct access of small terminals in the Internet of Things (IoT) to geostationary satellites may
provide wide coverage and almost 100% availability for remote locations without access to …

Massive non-orthogonal multiple access for cellular IoT: Potentials and limitations

M Shirvanimoghaddam, M Dohler… - IEEE Communications …, 2017 - ieeexplore.ieee.org
The Internet of Things promises ubiquitous connectivity of everything everywhere, which
represents the biggest technology trend in the years to come. It is expected that by 2020 …