Results 51 to 60 of about 255 (102)

Large-Scale NOMA: Promises for Massive Machine-Type Communication

open access: yesCoRR, 2019
We investigate on large-scale deployment of non-orthogonal multiple access (NOMA) for improved spectral and power efficiency in cellular networks to provide massive wireless connectivity (e.g. for machine-type communication [mMTC]). First, we describe the basics of single-antenna NOMA technology and its extension to co-located multiple-antenna NOMA as ...
Ekram Hossain 0001, Yasser F. Al-Eryani
openaire   +2 more sources

Performance Analysis of a Novel Hybrid S-ALOHA/TDMA Protocol for Beta Distributed Massive MTC Access

open access: yesSensors, 2017
Simultaneous random access of massive machine type communications (MTC) devices are expected to cause congestion in the radio access network. Not only the performance of MTC, but the coexisting human to human (H2H) communications would also degrade ...
Nannan Sui   +3 more
doaj   +1 more source

Limited Feedback Designs for Machine-Type Communications Exploiting User Cooperation

open access: yesIEEE Access, 2019
Multiuser multiple-input-multiple-output (MIMO) systems are a prime candidate for use in massive connection density in machine-type communication (MTC) networks.
Jiho Song   +3 more
doaj   +1 more source

Independent Time Transfer in 5G Technology Over IP Core Networks Using PTN Overlay and Comparison With GPS/GNSS-Based Synchronization

open access: yesIEEE Access
Time synchronization is critical for 5G networks, enabling ultra-reliable low-latency communications (URLLC) and massive machine-type communications (mMTC).
Mustafa Serdar Osmanca   +3 more
doaj   +1 more source

Integrating distributed photovoltaic and energy storage in 5G networks for sustainable IoT applications

open access: yesDiscover Internet of Things
The rapid growth of the Internet of Things (IoT) has led to an exponential increase in connected devices, creating significant challenges for the energy efficiency of 5G networks.
Yi Zhong, Yiting Wu, Yi Zheng, Xiaohu Ge
doaj   +1 more source

A Statistical Priority-Based Scheduling Metric for M2M Communications in LTE Networks

open access: yesIEEE Access, 2017
Resource allocation, or scheduling, is one of the main challenges that face supporting machine-to-machine (M2M) communications on long term evolution networks. M2M traffic has unique characteristics.
Ahmed Elhamy Mostafa, Yasser Gadallah
doaj   +1 more source

Joint User Activity Detection and Channel Estimation in MC-GFMA Systems by Block Sparse Bayesian Learning With Threshold Optimization

open access: yesIEEE Open Journal of Vehicular Technology
Future wireless communications are expected to support massive connectivity in various applications, such as massive Machine-Type Communications (mMTC) and different types of IoT networks, where many applications have the data traffic of sporadicnature ...
Yi Zhao   +2 more
doaj   +1 more source

Performance Analysis of Hybrid Scheme of Slotted ALOHA and PD‐NOMA for Massive Machine‐Type Communications

open access: yesIET Networks
This paper investigates the characteristics of slotted ALOHA and power‐domain nonorthogonal multiple access (PD‐NOMA) hybrid schemes, focusing on two key performance metrics, namely device transmission success probability and base station throughput ...
Chen Guanzhou   +6 more
doaj   +1 more source

Field-Programmable Gate Array-Based Implementation of Zero-Trust Stream Data Encryption for Enabling 6G-Narrowband Internet of Things Massive Device Access

open access: yesSensors
With the advent of 6G Narrowband IoT (NB-IoT) technology, IoT security faces inevitable challenges due to the application requirements of Massive Machine-Type Communications (mMTCs).
Wen-Chung Tsai
doaj   +1 more source

Random access scheme for different MTC scenario requirement

open access: yesTongxin xuebao, 2020
For the different random access requirements of the mixed scenarios of ultra-reliable low latency (URLLC) and massive machine type communications (mMTC) in MTC,a random access scheme based on devices grouping was proposed.The proposed scheme divided the ...
Zhefu WU   +3 more
doaj  

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