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5G technology: towards dynamic spectrum sharing using cognitive radio networks
2020
IEEE Access
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Moreover, a detailed survey on cognitive radio (CR) technology in SS related to 5G implementation is performed. ...
The surveys and studies are categorised into one of the main SS techniques on the basis of network architecture, spectrum allocation behaviour and spectrum access method. ...
COGNITIVE RADIO The challenges for 5G cognitive terminals were highlighted in [79] to ensure the success of CRN in providing EE and high-speed connectivity to end users. ...
doi:10.1109/access.2020.2966271
fatcat:cobdo5ucibcdpc5jfecbdwhni4
Combination of Ultra-Dense Networks and other 5G Enabling Technologies: A Survey
2020
IEEE Access
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Hence, in this paper, we present a comprehensive survey on different generations of wireless networks, 5G new radio (NR) standards, 5G enabling technologies and the importance of combining UDNs with other ...
However, the ultradense deployment of small cells in the coverage area of conventional macrocells known as UDNs introduces new technical challenges such as severe interference, unfairness in radio resource ...
The authors in [104] have applied mmWave beam steered fibre wireless systems to 5G indoor coverage, in terms of network architectures, key emerging devices and fibre-wireless links to ensure link reliability ...
doi:10.1109/access.2020.2969980
fatcat:dpyo5xyrgjgvhcsfhilepbmuo4
D4.2 Modelling of Intelligent IAB and Hybrid User Terminal Optimized by the Multi-agent Deep Reinforcement Learning
2022
Zenodo
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Machine-Type Communication Hybrid user terminal modelling for the D2D enabled cooperative network Intelligent IAB with Beam Steering based on User Location Advanced Test and Simulation Tools supporting ...
The updated research areas in this document include: Artificial Intelligence (AI) based scheduler for a 5G Cell-Free (CF) networks with Integrated Access and Back-haul (IAB) Grant-free NOMA for massive ...
Besides, this cooperative mode is also used in the cognitive network, where the secondary user shares the same frequency spectrum with the primary user by assisting the primary user communication as a ...
doi:10.5281/zenodo.7467961
fatcat:b6xh3bwqwjhq7me4l3ohirn32i
ARIADNE-D6.5 Business modelling and exploitation plans report.pdf
2023
Zenodo
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identified as a sensitive use case to cost-efficiency drivers, being an alternative to current fibre technologies. ...
This deliverable summarizes the activities conducted in T6.3 Business Modelling and Exploitation in WP6. ...
CNRS will continue to exploit the results obtained in ARIADNE in recently funded research projects, in established collaborations with industrial partners, within the Industry Specification Group on Reconfigurable ...
doi:10.5281/zenodo.8207947
fatcat:ev2v2t62h5dz7nax6l74lndpqu
Satellite Communications in the New Space Era: A Survey and Future Challenges
2020
IEEE Communications Surveys and Tutorials
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Subsequently, an in-depth literature review is provided across five axes: i) system aspects, ii) air interface, iii) medium access, iv) networking, v) testbeds & prototyping. ...
Firstly, the main innovation drivers are motivated, such as new constellation types, on-board processing capabilities, nonterrestrial networks and space-based data collection/processing. ...
In the latter case, the access link to the users is provided by the relay nodes (RN), which are then connected to the base stations through the satellite link. ...
doi:10.1109/comst.2020.3028247
fatcat:qdsitas5xjhwtfhs6nin3eus5q
Satellite Communications in the New Space Era: A Survey and Future Challenges
[article]
2020
arXiv
pre-print
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Firstly, the main innovation drivers are motivated, such as new constellation types, on-board processing capabilities, nonterrestrial networks and space-based data collection/processing. ...
Subsequently, an in-depth literature review is provided across five axes: i) system aspects, ii) air interface, iii) medium access, iv) networking, v) testbeds & prototyping. ...
The link connecting the GW with the satellite (in both directions) is named the feeder link. The link connecting the satellite with the user terminal is referred to as user link. ...
arXiv:2002.08811v2
fatcat:u3uvhm5bovg6povxbwwl5h6rqq
Design of large polyphase filters in the Quadratic Residue Number System
2010
2010 Conference Record of the Forty Fourth Asilomar Conference on Signals, Systems and Computers
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sharing in cognitive radios where secondary users cooperatively sense the spectrum for identifying and accessing unoccupied spectrum bands. ...
We consider a cognitive radio network with K participating cognitive radios and one fusion center in the presence of one primary user and one jammer in the operating region. ...
doi:10.1109/acssc.2010.5757589
fatcat:ccxnu5owr5fyrcjcqukumerueq
5G Norma Network Architecture – Final Report
2017
Zenodo
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This deliverable further presents the assessment and verification of the architecture based on realistic evaluation cases from the London study area defined in WP2. ...
Network functions from both the radio access and the core network domain have been decomposed and adaptively allocated to antenna site, edge cloud, or central cloud locations. ...
For example, in 4G, base stations provided users with a single broadband packet data connection. ...
doi:10.5281/zenodo.1120247
fatcat:kheylapulffzpmdkbe3tuxlb3i
Enabling Technologies for Ultra-Reliable and Low Latency Communications: From PHY and MAC Layer Perspectives
2019
IEEE Communications Surveys and Tutorials
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We provide a comprehensive discussion on physical (PHY) and medium access control (MAC) layer techniques that enable URLLC, addressing both licensed and unlicensed bands. ...
We identify that enabling long-term evolution (LTE) to coexist in the unlicensed spectrum is also a potential enabler of URLLC in the unlicensed band, and provide numerical evaluations. ...
. [144] Nokia system-level A multi-connectivity concept for a cloud radio access network can considerably reduce mobility related link failures without a loss in throughput of cell-edge users. due to frequency ...
doi:10.1109/comst.2019.2897800
fatcat:jgaahgi27rev3ieyrisn2yvh5m
On the Road to 6G: Visions, Requirements, Key Technologies and Testbeds
[article]
2023
arXiv
pre-print
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Fifth generation (5G) mobile communication systems have entered the stage of commercial development, providing users with new services and improved user experiences as well as offering a host of novel ...
In addition, future research directions and open challenges are identified for stimulating the on-going global debate. Finally, lessons learned to date concerning 6G networks are discussed. ...
In [583] an experimental platform for deep space FSO technology is shown. The testbed is based on a transmission link (operating on 1550 nm wavelength) realized with fibre optics technology. ...
arXiv:2302.14536v1
fatcat:6hsm7tn4kvaqhnmabw3s5nf4ka
5G PPP Architecture Working Group - View on 5G Architecture, Version 3.0
2019
Zenodo
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The work has continued with the 5G PPP Phase II and Phase III projects with special focus on understanding the requirements from vertical industries involved in the projects and then driving the required ...
It also targets at presenting in a harmonized way the architectural concepts developed in various projects and initiatives (not limited to 5G PPP projects only) so as to provide a consolidated view on ...
Many antenna elements per RRH can be addressed by utilising parallel fibre links over the SDM-fibre connections. ...
doi:10.5281/zenodo.3265030
fatcat:ctlelszvm5fdfodlequre424wa
Non-terrestrial Communications Assisted by Reconfigurable Intelligent Surfaces
[article]
2021
arXiv
pre-print
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RIS with low-cost elements can bypass blockages and create multiple line-of-sight (LoS) links, and provide controllable communication channels. ...
In combination with next-generation communication technologies, the advanced technologies in RANTNs are discussed. ...
Multiple Access Schemes Today's wireless networks allocate radio resources to users based on the orthogonal multiple access (OMA) schemes, such as TDMA, and FDMA. ...
arXiv:2109.00876v1
fatcat:gukzusg4rzeevcfzdl2ff7yxdm
Enabling Joint Communication and Radar Sensing in Mobile Networks – A Survey
[article]
2021
arXiv
pre-print
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Mobile network is evolving from a communication-only network towards one with joint communication and radar/radio sensing (JCAS) capabilities, that we call perceptive mobile network (PMN). ...
We continue to provide a brief review of three types of JCAS systems, with particular attention to their differences in design philosophy. ...
These RRUs cooperate and provide links to users using multiuser-MIMO OFDMA. Each user has a ULA of elements, and may occupy and share a part of the total subcarriers with other users. ...
arXiv:2006.07559v4
fatcat:uqxn3bm27zg55ofrh337j7qzb4
A survey of architectures and scenarios in satellite-based wireless sensor networks: system design aspects
2012
International Journal of Satellite Communications And Networking
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architectural aspects related to WSNs in some way connected with a satellite link, a topic that presents challenging interworking aspects. ...
with only changed data returned (report by exception); and • no scanning, with remote terminals reporting changed data on detection (closest to a Poisson distribution). ...
ACKNOWLEDGEMENT This work was co-funded by ESA (European Space Agency) under the framework of the SatNEx-III CoO2-Task 2 research activities entitled 'The role of satellite in future sensor networks'. ...
doi:10.1002/sat.1019
fatcat:mg5w7twbxvaapjcsppyfz7c3ne
Applications of Machine Learning in Networking: A Survey of Current Issues and Future Challenges
2021
IEEE Access
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As a consequence, the conventional rule-based algorithms or protocols may no longer perform at their best efficiencies in these networks. ...
A review of the recent literature reveals extensive opportunities for researchers to exploit the advantages of ML in solving complex performance issues in a network, especially with the advancement of ...
In CRN, the secondary users (SU) or cognitive users are allowed to access the licensed spectrum subject to the condition that the interference caused by the transmission of the SUs to the PU does not exceed ...
doi:10.1109/access.2021.3069210
fatcat:4i7vykwabbattm5uh3mgsdmhvi
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