Results 51 to 60 of about 255 (102)
Large-Scale NOMA: Promises for Massive Machine-Type Communication
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
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
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
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
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
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
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
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
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
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

