Results 31 to 40 of about 8,737 (230)

ARQ Assisted Short-Packet Communications for NOMA Networks Over Nakagami-m Fading Channels

IEEE Access, 2020
Non-orthogonal multiple access (NOMA) is expected as a promising technology for satisfying massive connectivity requirements in Internet of Things (IoT). Besides, short-packet communications are a notable characteristic in IoT for low delay transmissions
Fenglian Cao, Yi Song, Yucui Yang
doaj   +1 more source

Guest Editorial: Massive Machine-Type Communications for IoT

IEEE Wireless Communications, 2021
Future wireless cellular networks are envisioned to not only enhance broadband access for human-centric applications, but also offer massive connectivity across tens of billions of devices for machine-centric applications empowered by Internet of Things (IoT) technologies (e.g., smart factory and smart city).
Liang Liu 0003, Erik G. Larsson, Petar Popovski, Giuseppe Caire, Xiaoming Chen 0001, Saeed R. Khosravirad   +5 more
openaire   +3 more sources

A NOMA-based Q-Learning Random Access Method for Machine Type Communications [PDF]

, 2020
Machine Type Communications (MTC) is a main use case of 5G and beyond wireless networks. Moreover, due to the ultra-dense nature of massive MTC networks, Random Access (RA) optimization is very challenging. A promising solution is to use machine learning
Souza, Richard Demo, da Silva, Matheus Valente, Alves, Hirley, Abrão, Taufik   +3 more
core   +1 more source

Non-Coherent and Backscatter Communications: Enabling Ultra-Massive Connectivity in 6G Wireless Networks

IEEE Access, 2021
With the commencement of the 5th generation (5G) of wireless networks, researchers around the globe have started paying their attention to the imminent challenges that may emerge in the beyond 5G (B5G) era.
Syed Junaid Nawaz, Shree Krishna Sharma, Babar Mansoor, Mohammad N. Patwary, Noor M. Khan   +4 more
doaj   +1 more source

Joint Activity Detection and Channel Estimation for Clustered Massive Machine Type Communications

, 2023
Compressed sensing multi-user detection (CS-MUD) algorithms play a key role in optimizing grant-free (GF) non-orthogonal multiple access (NOMA) for massive machine-type communications (mMTC).
López, Onel Luis Alcaraz, Alves, Hirley, Djelouat, Hamza, Hauptmann, Andreas, Marata, Leatile   +4 more
core   +1 more source

Hybrid resource scheduling for aggregation in massive machine-type communication networks [PDF]

, 2021
Data aggregation is a promising approach to enable massive machine-type communication (mMTC). Here, we first characterize the aggregation phase where a massive number of machine-type devices transmits to their respective aggregator.
Alves, Hirley, Alcaraz López, Onel L., Latva-aho, Matti, Nardelli, Pedro H. J.   +3 more
core   +1 more source

Massive machine-type communication (mMTC) access with integrated authentication [PDF]

2017 IEEE International Conference on Communications (ICC), 2017
We present a connection establishment protocol with integrated authentication, suited for Massive Machine-Type Communications (mMTC). The protocol is contention-based and its main feature is that a device contends with a unique signature that also enables the authentication of the device towards the network. The signatures are inspired by Bloom filters
Nuno K. Pratas, Sarath Pattathil, Cedomir Stefanovic, Petar Popovski   +3 more
openaire   +2 more sources

D2D Assisted Q-Learning Random Access for NOMA-Based MTC Networks

IEEE Access, 2022
Machine-type communications (MTC) should account for half the connections to the internet by 2030. The use case massive MTC (mMTC) allows for applications to connect a massive number of low-power and low-complexity devices, leading to challenges in ...
Matheus V. da Silva, Samuel Montejo-Sanchez, Richard Demo Souza, Hirley Alves, Taufik Abrao   +4 more
doaj   +1 more source

Machine-type communications: current status and future perspectives toward 5G systems [PDF]

, 2015
Machine-type communications (MTC) enables a broad range of applications from mission- critical services to massive deployment of autonomous devices. To spread these applications widely, cellular systems are considered as a potential candidate to provide ...
Iraji, Sassan, Jäntti, Riku, Shariatmadari, Hamidreza, Laya, Andres,, Laya, Andrés, Taleb, Tarik, Ghosh, Amitava, Ratasuk, Rapeepat, Jaentti, Riku   +8 more
core   +1 more source

User privacy prevention model using supervised federated learning‐based block chain approach for internet of Medical Things

CAAI Transactions on Intelligence Technology, EarlyView., 2023
Abstract This research focuses on addressing the privacy issues in healthcare advancement monitoring with the rapid establishment of the decentralised communication system in the Internet of Medical Things (IoMT). An integrated blockchain homomorphic encryption standard with an in‐build supervised learning‐based smart contract is designed to improvise ...
Chandramohan Dhasarathan, Mohammad Kamrul Hasan, Shayla Islam, Salwani Abdullah, Shailesh Khapre, Dalbir Singh, Abdulaziz A. Alsulami, Ali Alqahtani   +7 more
wiley   +1 more source