Results 1 to 10 of about 442,812 (111)

A Left-Null-Space-Based Massive Access Method for Cell-Free Massive MIMO IoT Systems [PDF]

open access: yesSensors, 2023
Cell-free massive multiple-input multiple-output (MIMO) is a promising technology for the Internet of Things (IoT) because it can increase connectivity and provide considerable energy efficiency (EE) and spectral efficiency (SE).
Yang Wang, Die Hu
doaj   +2 more sources

The Strongly Asynchronous Massive Access Channel [PDF]

open access: yesEntropy, 2022
This paper considers the Strongly Asynchronous, Slotted, Discrete Memoryless, Massive Access Channel (SAS-DM-MAC) in which the number of users, the number of messages, and the asynchronous window length grow exponentially with the coding blocklength with
Sara Shahi   +2 more
doaj   +2 more sources

Preamble Design and Collision Resolution in a Massive Access IoT System [PDF]

open access: yesSensors, 2021
How to support massive access efficiently is one of the challenges in the future Internet of Things (IoT) systems. To address such challenge, this paper proposes an effective preamble collision resolution scheme to sustain massive random access (RA) for ...
Ailing Zhong   +4 more
doaj   +2 more sources

User-Centric Cell-Free Massive MIMO with Low-Resolution ADCs for Massive Access [PDF]

open access: yesSensors
This paper proposes a heuristic association algorithm between access points (APs) and user equipment (UE) in user-centric cell-free massive multiple-input-multiple-output (MIMO) systems, specifically targeting scenarios where UEs share the same frequency
Jin-Woo Kim   +7 more
doaj   +2 more sources

Fundamental Limits of Non-Orthogonal Multiple Access (NOMA) for the Massive Gaussian Broadcast Channel in Finite Block-Length

open access: yesSensors, 2021
Superposition coding (SC) has been known to be capacity-achieving for the Gaussian memoryless broadcast channel for more than 30 years. However, SC regained interest in the context of non-orthogonal multiple access (NOMA) in 5G.
Jean-Marie Gorce   +3 more
doaj   +1 more source

Access Control in NB-IoT Networks: A Deep Reinforcement Learning Strategy

open access: yesInformation, 2020
The Internet of Things (IoT) is a key enabler of the digital mutation of our society. Driven by various services and applications, Machine Type Communications (MTC) will become an integral part of our daily life, over the next few years.
Yassine Hadjadj-Aoul   +1 more
doaj   +1 more source

For Massive Access With Sporadic Traffic in M2M Communication: Collision Avoidance or Collision Resolution

open access: yesIEEE Access, 2020
To meet the increased requirement of machine-to-machine (M2M) communication, the potential to support massive access with sporadic traffic in uplink of two typical methods, one is the collision avoidance (CA) method at the user side, and the other is the
Tingyu Qi, Youzheng Wang
doaj   +1 more source

Multi-Channel Joint Forecasting-Scheduling for the Internet of Things

open access: yesIEEE Access, 2020
We develop a methodology for Multi-Channel Joint Forecasting-Scheduling (MC-JFS) targeted at solving the Medium Access Control (MAC) layer Massive Access Problem of Machine-to-Machine (M2M) communication in the presence of multiple channels, as found in ...
Volkan Rodoplu   +3 more
doaj   +1 more source

6G Massive Radio Access Networks: Key Applications, Requirements and Challenges

open access: yesIEEE Open Journal of Vehicular Technology, 2021
Driven by the emerging use cases in massive access future networks, technological advancements and evolutions are needed for wireless communications beyond the fifth-generation (5G) networks. In particular, we envisage that the upcoming sixth-generation (
Ying Loong Lee   +3 more
doaj   +1 more source

Towards Massive Connectivity Support for Scalable mMTC Communications in 5G Networks

open access: yesIEEE Access, 2018
The fifth generation of cellular communication systems is foreseen to enable a multitude of new applications and use cases with very different requirements.
Carsten Bockelmann   +18 more
doaj   +1 more source

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