Results 81 to 90 of about 16,485 (181)

MIMO Array Gain Techniques for Communications over mmWave Channels [PDF]

, 2022
The small wavelength in mmWave systems enables beamforming using large antenna arrays to combat SNR degradation. In this work, after the analysis of a suitable MIMO mmWave channel, we present and compare multi-antenna single user solutions.
Belli, Nicola
core  

Latency Budgeting of Dynamic Cloud Radio Access Network

Anbar Journal of Engineering Sciences
This paper analyzes latency budgeting within a dynamic cloud radio access network and compares the impact of millimetre wave, optical fiber, and free-space optics front-haul links on end-to-end delay.
Basim K. J. Al-Shammari
doaj   +1 more source

5th generation millimeter wave wireless communication propagation losses dataset for indian metro cities based on corresponding weather conditions

Data in Brief, 2019
In this paper, we present 5th generation (5G) millimeter wave (mmWave) wireless communication propagation losses dataset for four Indian major urban cities like Delhi, Mumbai, Kolkata and Chennai based on corresponding weather conditions.
S.K. Agrawal, Kapil Sharma
doaj   +1 more source

RF Fingerprinting to Detect Beamstealing Attacks in mmWave 5G Communications [PDF]

Radioengineering
5G mmWave networks rely on directional beamforming to ensure high-bandwidth connectivity, but the initial beam alignment process is vulnerable to beam-stealing attacks. In this scenario, an adversary transmits forged synchronization signals to hijack the
M. Kousal, J. Vychodil, M. Ali, R. Marsalek   +3 more
doaj  

Joint MU-mMIMO-OFDM with Hybrid Beamforming System Spectral Efficiency Improvement based NOMA Technique

Journal of Communications Software and Systems
Due to the increasing number of users and high data rate requirements for multimedia applications in fifth-generation (5G) and beyond wireless systems, it’s necessary to incorporate spectral efficient techniques to overcome the limited available re ...
Raya K. Mohammed, Nasser N. Khamiss
doaj   +1 more source

Unsupervised Machine Learning Based User Clustering in mmWave-NOMA Systems

, 2018
Millimeter-wave non-orthogonal multiple access (mmWave-NOMA) systems exploit the power domain for multiple access to further enhance the spectral efficiency.
Fan, Pingzhi, Ding, Zhiguo; id_orcid, Al-dhahir, Naofal, Cui, Jingjing   +3 more
core   +1 more source

Millimeter-Wave Communications With Non-Orthogonal Multiple Access for B5G/6G

IEEE Access, 2019
In order to further improve the system capacity, we explore the integration of non-orthogonal multiple access (NOMA) in millimeter-wave communications (mmWave-NOMA) for future B5G and 6G systems.
Lipeng Zhu, Zhenyu Xiao, Xiang-Gen Xia, Dapeng Oliver Wu   +3 more
doaj   +1 more source

Resource Allocation and Interference Management for Opportunistic Relaying in Integrated mmWave/sub-6 GHz 5G Networks

, 2017
\ua9 1979-2012 IEEE. The 5G networks are envisioned to use mmWave bands to provide gigabit-per-second throughput. To extend the coverage of extreme data rates provided by mmWave technologies, we consider two-hop relaying based on D2D communication in an ...
Tao Chen, Freij, Ragnar,, Ragnar Freij-Hollanti, Chen, Tao,, Junquan Deng, Chen, Tao, Tirkkonen, Olav, Nikaein, Navid,, Deng, Junquan, Olav Tirkkonen, Deng, Junquan,, Tirkkonen, Olav,, Freij, Ragnar, Nikaein, Navid, Freij-Hollanti, Ragnar, Navid Nikaein   +15 more
core   +1 more source

Enhanced Next Generation Millimeter-Wave Multicarrier System with Generalized Frequency Division Multiplexing

International Journal of Antennas and Propagation, 2016
Orthogonal Frequency Division Multiplexing (OFDM) is a popular multicarrier technique used to attain high spectral efficiencies. It also has other advantages such as multipath tolerance and ease of implementation.
Hidekazu Shimodaira, Joongheon Kim, Ali S. Sadri   +2 more
doaj   +1 more source

Performance Analysis of Interference and Eavesdropping Immunity in Narrow Beam mmWave Networks

IEEE Access, 2018
Exploiting highly directional antenna arrays to compensate for severe propagation loss is one of the defining features in millimeter-wave (mmWave) communications. With efficient beamforming techniques, mmWave transceivers can form steerable narrow beams.
Qing Xue, Pei Zhou, Xuming Fang, Ming Xiao   +3 more
doaj   +1 more source