Demonstration of Performance Improvement in Multi-User NOMA VLC System Using Joint Transceiver Optimization Article Swipe
Tong Wu
,
Zixiong Wang
,
Shiying Han
,
Jinlong Yu
,
Yang Jiang
·
YOU?
·
· 2022
· Open Access
·
· DOI: https://doi.org/10.3390/photonics9030168
YOU?
·
· 2022
· Open Access
·
· DOI: https://doi.org/10.3390/photonics9030168
The bit error ratio (BER) performance of a non-orthogonal multiple access (NOMA) visible light communication (VLC) system is poor due to the unequal distances between adjacent points in the superposition constellation (SC). In this paper, we propose a novel scheme to improve the BER performance by adjusting parameters to change the shape of SC at the transmitter and by adjusting the parameters of successive interference cancellation (SIC) decoding at the receiver simultaneously, which is called a SC and SIC adjustment (SC-SIC-A) scheme. For multi-user NOMA VLC system, we derive the closed-form BER expression for each user, where the modulation format is four-quadrature amplitude modulation. According to the derived BER expressions, we formulate an optimization problem that minimizes the average BER for all users by adjusting the obtained parameters of SC and SIC decoding via differential evolution algorithm. The improvement of capacity performance is investigated consequently. In order to verify the feasibility and effectiveness of the proposed SC-SIC-A scheme, we carried out theoretical analysis, Monte Carlo simulation and experiments of two-user and three-user NOMA VLC systems. Results show that the SC-SIC-A scheme outperforms the existing schemes in NOMA VLC system, where the signal-to-noise ratio (SNR) reductions to achieve BER of 10−3 are 1.3 dB and 0.8 dB for both users in the two-user NOMA VLC system, respectively, and the SNR reductions to achieve BER of 10−3 are 5.7 dB, 4.3 dB and 4.6 dB for all users in the three-user NOMA VLC system, respectively.
Related Topics
Concepts
Visible light communication
Computer science
Bit error rate
Single antenna interference cancellation
Noma
Transmitter
Transceiver
Decoding methods
Signal-to-noise ratio (imaging)
Electronic engineering
Algorithm
Topology (electrical circuits)
Telecommunications
Physics
Telecommunications link
Optics
Wireless
Electrical engineering
Engineering
Light-emitting diode
Channel (broadcasting)
Metadata
- Type
- article
- Language
- en
- Landing Page
- https://doi.org/10.3390/photonics9030168
- https://www.mdpi.com/2304-6732/9/3/168/pdf?version=1646880568
- OA Status
- gold
- Cited By
- 7
- References
- 29
- Related Works
- 10
- OpenAlex ID
- https://openalex.org/W4220674521
All OpenAlex metadata
Raw OpenAlex JSON
- OpenAlex ID
-
https://openalex.org/W4220674521Canonical identifier for this work in OpenAlex
- DOI
-
https://doi.org/10.3390/photonics9030168Digital Object Identifier
- Title
-
Demonstration of Performance Improvement in Multi-User NOMA VLC System Using Joint Transceiver OptimizationWork title
- Type
-
articleOpenAlex work type
- Language
-
enPrimary language
- Publication year
-
2022Year of publication
- Publication date
-
2022-03-09Full publication date if available
- Authors
-
Tong Wu, Zixiong Wang, Shiying Han, Jinlong Yu, Yang JiangList of authors in order
- Landing page
-
https://doi.org/10.3390/photonics9030168Publisher landing page
- PDF URL
-
https://www.mdpi.com/2304-6732/9/3/168/pdf?version=1646880568Direct link to full text PDF
- Open access
-
YesWhether a free full text is available
- OA status
-
goldOpen access status per OpenAlex
- OA URL
-
https://www.mdpi.com/2304-6732/9/3/168/pdf?version=1646880568Direct OA link when available
- Concepts
-
Visible light communication, Computer science, Bit error rate, Single antenna interference cancellation, Noma, Transmitter, Transceiver, Decoding methods, Signal-to-noise ratio (imaging), Electronic engineering, Algorithm, Topology (electrical circuits), Telecommunications, Physics, Telecommunications link, Optics, Wireless, Electrical engineering, Engineering, Light-emitting diode, Channel (broadcasting)Top concepts (fields/topics) attached by OpenAlex
- Cited by
-
7Total citation count in OpenAlex
- Citations by year (recent)
-
2025: 2, 2024: 1, 2023: 3, 2022: 1Per-year citation counts (last 5 years)
- References (count)
-
29Number of works referenced by this work
- Related works (count)
-
10Other works algorithmically related by OpenAlex
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