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Towards 6G wireless communication networks: vision, enabling technologies, and new paradigm shifts
2020
Science China Information Sciences
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, channel coding schemes, multi-antenna technologies, network slicing, cell-free architecture, and cloud/fog/edge computing. ...
To meet these requirements, 6G networks will rely on new enabling technologies, i.e., air interface and transmission technologies and novel network architecture, such as waveform design, multiple access ...
Open access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long ...
doi:10.1007/s11432-020-2955-6
fatcat:bf4wxtlfsbg7noe5nshf3pz3qq
Pervasive Intelligent Endogenous 6G Wireless Systems: Prospects, Theories and Key Technologies
2020
Digital Communications and Networks
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The worldwide large-scale commercial deployment of 5G has commenced in 2020 for supporting enhanced Mobile BroadBand (eMBB), ultra-Reliable and Low-Latency Communications (uRLLC), and massive Machine-Type ...
In this paper, we present a forward-looking, comprehensive and in-depth analysis and technical identification of 6G. ...
The following access schemes can be studied. 1) Hybrid orthogonal/non-orthogonal multiple access: design hybrid orthogonal and non-orthogonal multiple access technologies to provide massive and differentiated ...
doi:10.1016/j.dcan.2020.07.002
fatcat:pfo2oeb7tjeurhoqaqvhrzz3cq
Network and Physical Layer Attacks and countermeasures to AI-Enabled 6G O-RAN
[article]
2021
arXiv
pre-print
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This paper examines the security implications of AI-driven 6G radio access networks (RANs). ...
The Open RAN (O-RAN) describes an industry-driven open architecture and interfaces for building next generation RANs with AI control. ...
• Channel coding: Advances polar codes,
Enhanced FEC in the turbo codes, and
serially or parallel concatenated schemes.
• User-Cell association: cell-free (CF)
mMIMO. ...
arXiv:2106.02494v1
fatcat:mrzcvccqrrhe5ijswlnvmcxtt4
Cellular, Wide-Area, and Non-Terrestrial IoT: A Survey on 5G Advances and the Road Towards 6G
[article]
2021
arXiv
pre-print
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The solutions include grant-free access and channel coding for short-packet communications, non-orthogonal multiple access, and on-device intelligence. ...
Aligned with the main key performance indicators of 5G and beyond 5G networks, we investigate solutions and standards that enable energy efficiency, reliability, low latency, and scalability (connection ...
In multiple access, we discuss how new, non-orthogonal multiple access (NOMA) schemes in the uplink and downlink can increase the number of connected devices. ...
arXiv:2107.03059v1
fatcat:i7rxlipsd5eojgpx3x5yxioozq
A Two-stage Deep Learning Receiver for High Throughput Power Efficient LEO Satellite System with Varied Operation Status
2022
IEEE Access
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For this to happen 5G and 6G networks, are crucial to be implemented in satellite communication. This comes with the problem of power-efficient transmissions. ...
channel and a fixed non-linear front end. ...
IDFT and a subsequent parallel to serial (P/S) conversion. ...
doi:10.1109/access.2022.3180055
fatcat:fzpcfhrgrnf3plf5n2p7iajtbm
Final Program
2021
2021 IEEE 93rd Vehicular Technology Conference (VTC2021-Spring)
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networks, rate-splitting and non-orthogonal multiple access. ...
Non-Orthogonal Multiple Access and Network Slicing: 3. ...
doi:10.1109/vtc2021-spring51267.2021.9448675
fatcat:if5edc6u7zcc7jnl67jezth3je
Opportunistic Spectrum Sharing Based on OFDM With Index Modulation
2019
IEEE Transactions on Wireless Communications
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In this paper, a novel opportunistic spectrum sharing scheme, based on orthogonal frequency division multiplexing with index modulation (OFDM-IM), is proposed for cognitive radio (CR) networks. ...
In [23], adaptive mapping schemes between IM bits and SAPs are presented for dual-hop OFDM-IM DF relaying networks. ...
His research interests include index modulation, non-orthogonal multiple access, physical layer security, and molecular communications. Dr. ...
doi:10.1109/twc.2019.2943159
fatcat:rpuyzhz5ibbtjetkgumhdlbrt4
Cell-Free Massive MIMO Meets OTFS Modulation
[article]
2021
arXiv
pre-print
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We provide the first-ever performance evaluation of orthogonal time frequency space (OTFS) modulation in cell-free massive multiple-input multiple-output (MIMO) systems. ...
We compare the OTFS performance with that of orthogonal frequency division multiplexing (OFDM) at high-mobility conditions. ...
systems [13], [14], non-orthogonal
multiple access communication networks [15], [16], and massive MIMO systems [17]–[21]. ...
arXiv:2112.10869v1
fatcat:zcqc7mbg4rdzblqwdcpcc6kgxi
Delivery of 5G Services Indoors - the wireless wire challenge and solutions
2021
Zenodo
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Finally indoor environments expose administrative cross-domain issues, and in some cases so called non-public networks, foreseen by 3GPP [...] ...
In any case the deployment of networks indoors is advised to consider and be planned along existing infrastructure, like powerlines and available shafts for other utilities. ...
Hence, the integration of non-orthogonal multiple access (NOMA) in THz/OWC communications seems a promising path to break this limitation and greatly increase the number of users. ...
doi:10.5281/zenodo.4280749
fatcat:ykuzcuhr4za2hpzma5by5spm24
Technologies for Assessment of Motor Disorders in Parkinson's Disease: A Review
2015
Sensors
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It is followed by explaining the merits of the multiple sensor fusion platform compared to single sensor platform for better monitoring progression of PD, and ends with thoughts about the future direction ...
The goal of this review is to come out with a summary of the recent progress of numerous forms of sensors and systems that are related to diagnosis of PD in the past decades. ...
Conflicts of Interest The authors declare no conflict of interest. ...
doi:10.3390/s150921710
pmid:26404288
pmcid:PMC4610449
fatcat:gjl5slpcybavlkszorbsqih734
Opportunities and challenges of joint edge and Fog orchestration
2018
2018 IEEE Wireless Communications and Networking Conference Workshops (WCNCW)
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The path that led me to the realisation of this thesis has been long and twisted and it spanned across several years and multiple countries with many ups and downs. ...
Then, after a couple of years, it took a sharp turn that brought me to London, United Kingdom, at InterDigital Europe Labs in the position of senior research engineer in the field of 5G Radio Access Network ...
of 6G. ...
doi:10.1109/wcncw.2018.8369006
dblp:conf/wcnc/Comma-diAACGKMY18
fatcat:gknxhtmnkvh2djboynbwmvrh24
Fully autonomous mouse behavioral and optogenetic experiments in home-cage
[article]
2020
bioRxiv
pre-print
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To demonstrate the utility of this approach, we tested dozens of mice in parallel unsupervised optogenetic experiments, revealing multiple regions in cortex, striatum, and superior colliculus involved ...
Naive mice living in a home-cage system learned voluntary head-fixation (>1 hour/day) and performed difficult decision-making tasks, including contingency reversals, for 2 months without human supervision ...
The behavioral trials were concatenated in time, i.e., across multiple head-fixations for home-cage training and across multiple sessions for manual training. ...
doi:10.1101/2020.12.27.424480
fatcat:ttcu3yn77zfi5pdlale6ge6lxm
Hybrid spectral CT reconstruction
2017
PLoS ONE
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10 mg/ml in 2-mm features for EID and PCD data reconstructed with inherent spatial resolutions of 176 μm and 254 μm, respectively (point spread function, FWHM). ...
When highresolution imaging is performed with a low-power, micro-focus x-ray source and a small detector pixel pitch, common PCD issues associated with count-rate performance and charge collection efficiency ...
Yi Qi for help with animal preparation, Dr. David Kirsch for providing the sarcoma tumor mouse model, and Mengheng Touch for help in performing the CT scans. ...
doi:10.1371/journal.pone.0180324
pmid:28683124
pmcid:PMC5500339
fatcat:qkm25ykjfrbezg4qztbclpqtcq
Efficient quantum computation of molecular forces and other energy gradients
[article]
2021
arXiv
pre-print
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Under cost models appropriate for noisy-intermediate scale quantum devices we demonstrate how low rank factorizations and other tomography schemes can be optimized for energy derivative calculations. ...
We perform numerics revealing that our techniques reduce the number of circuit repetitions required by many orders of magnitude for even modest systems. ...
Department of Energy, Office of Science, Office of Basic Energy Sciences (BES), the Division of Chemical Sciences, Geosciences, and Biosciences. ...
arXiv:2111.12437v2
fatcat:ofyto6uu2ngs5cikeyxf7ut4ci
Variable bit rate video transmission for code-division multiple-access systems in wideband fading channels
2003
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This thesis will dear in particular with the effect of source rate variability on current and future cellular systems which employ code-division as the multiple-access strategy, such as IS-95B and IS-2000 ...
We then derive the exact analytical error probabilities of several linear modulation schemes with diversity in correlated Nakagami channels, and validate them through simulation. ...
User k transmits streams in parallel, each one formed by the concatenation of a data stream with a spreading code. ...
doi:10.14288/1.0065376
fatcat:hnjfkvfhufgcrlnk5hlapluwja
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