Results 71 to 80 of about 4,109 (158)

AoI‐optimal path planning for UAV‐assisted data collection with heterogeneous information aging speed

open access: yesIET Communications, Volume 19, Issue 1, January/December 2025.
This paper studies a problem in which an unmanned aerial vehicle is dispatched to collect data from sensor nodes with heterogeneous information aging speed in dense obstacle environment, where the average age of information of sensor nodes through UAV path planning is minimized.
Chen Xie   +4 more
wiley   +1 more source

Joint Active User Detection, Timing Offset and Channel Estimation for FBMC‐Based Uplink Massive Access Systems

open access: yesIET Communications, Volume 19, Issue 1, January/December 2025.
The robustness against timing offsets of filter bank multi‐carrier (FBMC) is appealing for grant‐free massive access scenarios that mainly adopt asynchronous transmissions. In this work, we propose a compressed sensing based algorithm for joint active user detection as well as timing offset and channel estimation in uplink communication under the ...
Yuhao Qi   +4 more
wiley   +1 more source

RACH Traffic Prediction in Massive Machine Type Communications

open access: yesIEEE Transactions on Machine Learning in Communications and Networking
Traffic pattern prediction has emerged as a promising approach for efficiently managing and mitigating the impacts of event-driven bursty traffic in massive machine-type communication (mMTC) networks.
Hossein Mehri, Hani Mehrpouyan, Hao Chen
doaj   +1 more source

Extended Access Barring for Handling Massive Machine Type Communication (mMTC) Deployments

open access: yes, 2018
This work was supported in part by the Ministry of Economy and Competitiveness of Spain under Grants TIN2013-47272-C2-1-R and TEC2015- 71932-REDT.
Tello-Oquendo, Luis   +3 more
openaire   +2 more sources

Massive MIMO for Ultra-reliable Communications with Constellations for Dual Coherent-noncoherent Detection

open access: yes, 2018
The stringent requirements of ultra-reliable low-latency communications (URLLC) require rethinking of the physical layer transmission techniques. Massive antenna arrays are seen as an enabler of the emerging $5^\text{th}$ generation systems, due to ...
Angjelichinoski, Marko   +3 more
core  

Key technologies of symbiotic transmission for 6G Internet of things

open access: yes物联网学报, 2020
mMTC (massive machine-type communication) is one of the three major application scenarios of 5G network,but it is highly likely that the truly mature Internet of everything may not be realized until the future 6G network.In order to realize the deep ...
Mingjiang WU   +3 more
doaj   +2 more sources

Narrowband Internet of Things (NB-IoT): From Physical (PHY) and Media Access Control (MAC) Layers Perspectives

open access: yesSensors, 2019
Narrowband internet of things (NB-IoT) is a recent cellular radio access technology based on Long-Term Evolution (LTE) introduced by Third-Generation Partnership Project (3GPP) for Low-Power Wide-Area Networks (LPWAN).
Collins Burton Mwakwata   +5 more
doaj   +1 more source

Optimal resource allocation for two-stage connectionless access with collision detection

open access: yesTongxin xuebao, 2019
Connectionless access allows massive machine type communication (mMTC) devices to transmit small packets without establishment of radio bearers,significantly reducing device power consumption and control signaling overhead.Two-stage connectionless access
Xin JIAN   +5 more
doaj   +2 more sources

Research on resource allocation algorithm of centralized and distributed Q-learning in machine communication

open access: yesDianxin kexue, 2021
Under the premise of ensuring partial machine type communication device (MTCD)’s quality of service (QoS) requirements, the resource allocation problem was studied with the goal of maximizing system throughput in the massive machine type communication ...
Yunhe YU, Jun SUN
doaj   +2 more sources

The quality of service assessment of eMBB and mMTC traffic in a clustered 5G ecosystem of a smart factory

open access: yesEgyptian Informatics Journal
Industry 4.0 demands seamless integration of smart factories with the Industrial Internet of Things (IIoT), reliant on robust communication infrastructure.
Viacheslav Kovtun   +3 more
doaj   +1 more source

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