Results 41 to 50 of about 5,516 (118)

X2-Based Signalling Mechanisms for Downlink Uplink Decoupling in Next Generation Communication Systems

IEEE Access, 2022
Cell selection in cellular networks is an important aspect that impacts the quality of service. The traditional cell selection mechanism is based on downlink received power.
Kaveh Ahmadi, Mona Ghassemian, Massimo Condoluci, Mischa Dohler   +3 more
doaj   +1 more source

Noiseless Attenuation for Continuous-Variable Quantum Key Distribution over Ground-Satellite Uplink

Applied Sciences, 2021
Satellite-based quantum key distribution (QKD) has lately received considerable attention due to its potential to establish a secure global network.
Shengjie Xu, Yin Li, Yijun Wang, Yun Mao, Zhiyue Zuo, Xinchao Ruan, Ying Guo   +6 more
doaj   +1 more source

Analysis of 5G New Radio Uplink Signals on an Analogue-RoF System Based on DSP-Assisted Channel Aggregation

Applied Sciences, 2018
The 3rd Generation Partnership Project (3GPP) is in the process of developing 5th generation (5G) radio access technology, the so-called new radio (NR). The aim is to achieve the performance requirements forIMT-2020 radio interface technology.
Befekadu D. Mengesha, Pablo Torres-Ferrera, Roberto Gaudino   +2 more
doaj   +1 more source

Enhancing the Physical Layer Security of Uplink Non-Orthogonal Multiple Access in Cellular Internet of Things

IEEE Access, 2018
This paper investigates the physical-layer security of uplink non-orthogonal multiple access (NOMA) in the cellular Internet of Things (IoT) with invoking stochastic geometry. Poisson cluster process-based model is applied to characterize the NOMA uplink
Shuai Zhang, Xiaoming Xu, Huiming Wang, Jianhua Peng, Di Zhang, Kaizhi Huang   +5 more
doaj   +1 more source

Uplink rate enhancement algorithm for 5G network in intelligent mine

Gong-kuang zidonghua, 2021
The 5G application scenarios such as remote control, high-definition video, unmanned mine car and unmanned aerial vehicle in intelligent mine put forward new requirements for the uplink rate of wireless network.
JIANG Jianfeng1,2, CHEN Sihua3, YOU Lantao4   +2 more
doaj   +1 more source

An Over-the-Air Multi-User Convolutional Code for URLLC

IEEE Open Journal of the Communications Society
URLLC applications impose stringent latency and reliability requirements, making its compliance challenging due to the inherent trade-off between them. These applications typically involve the exchange of small information blocks. Convolutional codes (CC)
Rafael Santos, Daniel Castanheira, Adao Silva, Atilio Gameiro   +3 more
doaj   +1 more source

LoRa Technology Propagation Models for IoT Network Planning in the Amazon Regions

Sensors
Designing and deploying telecommunications and broadcasting networks in the challenging terrain of the Amazon region pose significant obstacles due to its unique morphological characteristics.
Wirlan G. Lima, Andreia V. R. Lopes, Caio M. M. Cardoso, Jasmine P. L. Araújo, Miércio C. A. Neto, Maria E. L. Tostes, Andréia A. Nascimento, Mauricio Rodriguez, Fabrício J. B. Barros   +8 more
doaj   +1 more source

Optimal deployment of energy-efficient ultra-dense network

Dianxin kexue, 2017
In order to maximize energy efficiency, the stochastic geometry method was used to model the uplink of a multi-cell multi-user MIMO cellular network.Then the system power consumption model was ameliorated.Based on this,an energy efficiency maximization ...
Liang GE, Zhixu WANG
doaj  

UL-CSI Data Driven Deep Learning for Predicting DL-CSI in Cellular FDD Systems

IEEE Access, 2019
Frequency division duplex (FDD) systems dominate current cellular networks due to its advantages of low latency and strong anti-interference ability.
Jie Wang, Ying Ding, Shujie Bian, Yang Peng, Miao Liu, Guan Gui   +5 more
doaj   +1 more source

Desain dan Implementasi Duplekser dengan Metoda Pseudo-Interdigital untuk Uplink dan Downlink LTE

Jurnal Elektronika dan Telekomunikasi, 2016
Duplekser merupakan perangkat yang dapat mengisolasi receiver dari transmitter saat keduanya saling berbagi antena yang sama, digunakan agar komunikasi bisa berjalan secara full duplex. Ada dua metode transmisi duplex yaitu frequency division duplex (FDD)
Enceng Sulaeman, Yaya Sulaeman, Asep Yudi Hercuadi   +2 more
doaj   +1 more source