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Uplink Non-Orthogonal Multiple Access over Mixed RF-FSO Systems
[article]
2020
arXiv
pre-print
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In this paper, we consider a relay-assisted uplink non-orthogonal multiple access (NOMA) system. ...
This work can be considered as a general analysis of dual-hop uplink NOMA systems as well as the first attempt to incorporate power-domain NOMA in mixed RF-FSO systems. ...
Fig. 1 . 1 Block diagram of the uplink NOMA transmission over mixed RF-FSO and dual-hop RF/RF systems. ...
arXiv:1903.00326v2
fatcat:eohp4d74abcffehsijvxxusww4
Outage Probability Analysis of Uplink NOMA over Ultra-High-Speed FSO-Backhauled Systems
[article]
2018
arXiv
pre-print
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In this paper, we consider a relay-assisted uplink non-orthogonal multiple access (NOMA) system where two radio frequency (RF) users are grouped for simultaneous transmission, over each resource block, ...
This work can be regarded as an initial attempt to incorporate power-domain NOMA over ultra-high-speed FSO-backhauled systems, known as mixed RF-FSO systems. ...
INTRODUCTION Non-orthogonal multiple access (NOMA) is being considered as one of the enabling technologies for the fifth generation (5G) wireless networks. ...
arXiv:1809.02893v1
fatcat:dzusgjtzhjdhxht7k5v3zxmrfu
Survey on Physical Layer Security in Optical Wireless Communication Systems
2018
2018 Seventh International Conference on Communications and Networking (ComNet)
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However, the security in OWC networks is still an issue, especially in visible light communication (VLC) when the transmitted information can be accessed by multiple users as in public areas, meeting rooms ...
as a promising technology to overcome the RF spectrum limitations. ...
There are two scenarios of mixed RF/FSO systems, which are the uplink and downlink scenarios. ...
doi:10.1109/comnet.2018.8622294
dblp:conf/comnet/ObeedSAZ18
fatcat:sejcybe6vverbef5m7elpxwcpy
Optical Wireless Hybrid Networks: Trends, Opportunities, Challenges, and Research Directions
2020
IEEE Communications Surveys and Tutorials
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An RF/optical wireless hybrid system consists both RF and optical-based wireless technologies, whereas an optical/optical wireless hybrid system consists two or more types of OWC technologies. ...
We provide a technology overview of existing literature on optical wireless hybrid networks, such as RF/optical and optical/optical systems. ...
Hence, efficient power allocation in a mixed RF/FSO relay system is an important concern for the mixed RF/FSO relay systems. ...
doi:10.1109/comst.2020.2966855
fatcat:qgkoolfncjbm3cqwj7a3b7kr2i
Retrofitting FSO Systems in Existing RF Infrastructure: A Non-Zero Sum Game Technology
[article]
2021
arXiv
pre-print
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This paper discusses installing infrared OWC, known as free space optics (FSO), systems on top of installed radio frequency (RF) networks for outdoor applications to benefit from the reliability of RF ...
We equally review commercially available solutions and the hardware requirements for RF and FSO technology co-existence. The potential of hybrid RF/FSO for space communication is further discussed. ...
MIXED RF/FSO MULTIHOP LINKS A possible scenario for the deployment of FSO is when it is combined with RF transmission systems to fill the connectivity gap between the RF access network and the fiber backbone ...
arXiv:2105.07543v1
fatcat:jhy7r6aocba2lmiw7gk7qsxesq
Ergodic Sum Rate Analysis of UAV-Based Relay Networks with Mixed RF-FSO Channels
[article]
2020
arXiv
pre-print
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In this work, a UAV-based communication system with radio frequency (RF) access links to the mobile users (MUs) and a free-space optical (FSO) backhaul link to the ground station (GS) is considered. ...
In particular, the RF and FSO channels in this network depend on the UAV's positioning and (in)stability. ...
The MUs are connected via RF access links to the UAV and by assuming frequency division multiple access (FDMA), each MU's signal is assigned to an orthogonal subchannel. ...
arXiv:2001.00871v2
fatcat:tlpmkmpdcnamxaerfa4nefe6gi
C-RAN with Hybrid RF/FSO Fronthaul Links: Joint Optimization of RF Time Allocation and Fronthaul Compression
[article]
2018
arXiv
pre-print
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This paper considers the uplink of a cloud radio access network (C-RAN) comprised of several multi-antenna remote radio units (RUs) which compress the signals that they receive from multiple mobile users ...
To enable reliable high rate fronthaul links, we employ a hybrid radio frequency (RF)/free space optical (FSO) system for fronthauling. ...
In this paper, we consider the uplink of a C-RAN with RF multiple-access links and hybrid RF/FSO fronthaul links. ...
arXiv:1808.05004v1
fatcat:r2tek5d7djgurcwrbsgrrpka5q
Ergodic Sum Rate Analysis of UAV-Based Relay Networks with Mixed RF-FSO Channels
2020
IEEE Open Journal of the Communications Society
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In this work, a UAV-based communication system with radio frequency (RF) access links to the mobile users (MUs) and a free-space optical (FSO) backhaul link to the ground station (GS) is considered. ...
In particular, the RF and FSO channels in this network depend on the UAV's positioning and (in)stability. ...
The MUs are connected via RF access links to the UAV and by assuming frequency division multiple access (FDMA), each MU's signal is assigned to an orthogonal subchannel. ...
doi:10.1109/ojcoms.2020.2969492
fatcat:byb7h4gesbgtlmne7vhbbpavy4
Table of contents
2020
IEEE Transactions on Communications
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Jiao 3667 Optical Communication On the Effect of Interference and Misalignment Error in Mixed RF/FSO Systems Over Generalized Fading Channels ........................................................... ...
Hanzo 3311 Cooperative/Relay Systems Finite Blocklength Non-Orthogonal Cooperative Communication Relying on SWIPT-Enabled Energy Harvesting Relays ...................................................... ...
doi:10.1109/tcomm.2020.2995215
fatcat:ijly7cxe5zafrjyuk2i73x4r2u
Table of contents
2019
IEEE Communications Letters
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B. da Costa 1497 Outage Performance Analysis for SWIPT-Based Cooperative Non-Orthogonal Multiple Access Systems .............. .......................................................................... ...
Lu 1547 OPTICAL COMMUNICATIONS Interference-Limited Mixed MUD-RF/FSO Two-Way Cooperative Networks Over Double Generalized Gamma Turbulence Channels ..................................................... ...
doi:10.1109/lcomm.2019.2936058
fatcat:634t3zppnnhnbev45tdatfnfeu
Table of contents
2020
IEEE Open Journal of the Communications Society
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Schober
477 On the Performance of Dual-Hop Systems Over Mixed FSO/mmWave
Fading Channels
Y. Zhang, J. Z, L. Yang, B. A, and M.-S. ...
Chen
Communication Theory and Systems
164 Ergodic Sum Rate Analysis of UAV-Based Relay Networks
With Mixed RF-FSO Channels
H. Ajam, M. Najafi, V. Jamali, and R. ...
doi:10.1109/ojcoms.2020.3045657
fatcat:ujiihquwrva2pfy6psdoqhn6oa
2020 Index IEEE Transactions on Wireless Communications Vol. 19
2020
IEEE Transactions on Wireless Communications
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., Joint Access and Backhaul Resource Management in Satellite-Drone Networks: A Competitive Market Approach; TWC June 2020 3908-3923 Hu, Y.H., see Xia, M., TWC June 2020 3769-3781 Hua, C., see Li, M ...
2020 650-664 Huang, A., see He, H., TWC Dec. 2020 7881-7896 Huang, C., Molisch, A.F., He, R., Wang, R., Tang, P., Ai, B., and Zhong, Z., Machine Learning-Enabled LOS/NLOS Identification for MIMO Systems ...
., +, TWC Jan.
2020 410-422
Uplink Non-Orthogonal Multiple Access Over Mixed RF-FSO Systems. ...
doi:10.1109/twc.2020.3044507
fatcat:ie4rwz4dgvaqbaxf3idysubc54
LIGHTNETs: Smart LIGHTing and Mobile Optical Wireless NETworks — A Survey
2013
IEEE Communications Surveys and Tutorials
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Recently, rapid increase of mobile devices pushed the radio frequency (RF)-based wireless technologies to their limits. ...
Though stemming from the same core technology, the smart lighting and FSO communication have inherent tradeoffs amongst each other. ...
They achieved an uplink increase up to 154% over pure beam-steering and 45% over pure base station diversity. ...
doi:10.1109/surv.2013.032713.00150
fatcat:dv33l67lajbgbgz2bwl74l6hgy
Table of contents
2020
IEEE Transactions on Communications
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Arias-De-Reyna 2740
2922 Non-Orthogonal Multiple Access for Air-to-Ground Communication ............... X. Mu, Y. Liu, L. Guo, and J. ...
Liu 2992 Optical Communication Secure Cooperative Transmission for Mixed RF/FSO Spectrum Sharing Networks ........................................ ...................................................... ...
doi:10.1109/tcomm.2020.2987509
fatcat:ghmoii5qfvegjg7jtpdblyejry
A Survey of NOMA for VLC Systems: Research Challenges and Future Trends
2022
Sensors
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The power domain nonorthogonal multiple access (PD-NOMA) scheme is envisioned to address several challenges in VLC systems. In this paper, we present a detailed overview of PD-NOMA based VLC systems. ...
Visible light communication (VLC) has become a promising technology for high data rate communications and an attractive complementary to conventional radio frequency (RF) communication. ...
Multiple Access Techniques in RF Multiple access techniques used in VLC systems are adopted from their counterparts in RF communication systems [2] . ...
doi:10.3390/s22041395
pmid:35214296
pmcid:PMC8962994
fatcat:qhjvxjkt2jcptm7cfsyot6wk6u
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