Joint power allocation for the multi-user NOMA-downlink in a power-line-fed VLC network
Joint power allocation for the multi-user NOMA-downlink in a power-line-fed VLC network
Visible light communications (VLC) constitutes as a promising downlink technique of supporting the ever-increasing tele-traffic. Since the ubiquitous mains power line constitutes a natural backbone feed for VLC, a combined power line and VLC network is conceived, where the source data is fed by power line communications (PLC) into the VLC network. We refer to it as a PLC-VLC network, where the power-line connects the light emitting diodes (LED) without requiring a duplicated filter-backbone. Then the information is forwarded to multiple users via visible light. Furthermore, to increase the downlink bit rate, non-orthogonal multiple access (NOMA) is invoked in VLC. For the sake of maximizing the sum-throxughput, we conceive a joint PLC-VLC power allocation (JPA) strategy, where the power allocated both to the PLC and to the VLC links is jointly determined upon analysing the power-relationship between them. Our simulations demonstrate that NOMA significantly outperforms orthogonal multiple access (OMA) with the aid of the proposed JPA.
5185-5190
Feng, Simeng
038a3c0d-9d57-4031-8d38-2203ea230e79
Bai, Tong
15e00a16-2ade-4fdb-a4d9-a490a526669a
Hanzo, Lajos
66e7266f-3066-4fc0-8391-e000acce71a1
May 2019
Feng, Simeng
038a3c0d-9d57-4031-8d38-2203ea230e79
Bai, Tong
15e00a16-2ade-4fdb-a4d9-a490a526669a
Hanzo, Lajos
66e7266f-3066-4fc0-8391-e000acce71a1
Feng, Simeng, Bai, Tong and Hanzo, Lajos
(2019)
Joint power allocation for the multi-user NOMA-downlink in a power-line-fed VLC network.
IEEE Transactions on Vehicular Technology, 68 (5), .
(doi:10.1109/TVT.2019.2906095).
Abstract
Visible light communications (VLC) constitutes as a promising downlink technique of supporting the ever-increasing tele-traffic. Since the ubiquitous mains power line constitutes a natural backbone feed for VLC, a combined power line and VLC network is conceived, where the source data is fed by power line communications (PLC) into the VLC network. We refer to it as a PLC-VLC network, where the power-line connects the light emitting diodes (LED) without requiring a duplicated filter-backbone. Then the information is forwarded to multiple users via visible light. Furthermore, to increase the downlink bit rate, non-orthogonal multiple access (NOMA) is invoked in VLC. For the sake of maximizing the sum-throxughput, we conceive a joint PLC-VLC power allocation (JPA) strategy, where the power allocated both to the PLC and to the VLC links is jointly determined upon analysing the power-relationship between them. Our simulations demonstrate that NOMA significantly outperforms orthogonal multiple access (OMA) with the aid of the proposed JPA.
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Accepted/In Press date: 16 March 2019
e-pub ahead of print date: 19 March 2019
Published date: May 2019
Identifiers
Local EPrints ID: 429157
URI: http://eprints.soton.ac.uk/id/eprint/429157
ISSN: 0018-9545
PURE UUID: 630c2a01-956d-4262-999e-f81c2c8136f5
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Date deposited: 22 Mar 2019 17:30
Last modified: 18 Mar 2024 02:36
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Author:
Simeng Feng
Author:
Tong Bai
Author:
Lajos Hanzo
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