High capacity data rate system: Review of visible light communications technology

Ibhaze, Augustus E.; Orukpe, Patience E.; Edeko, F.O.

doi:10.1016/j.jnlest.2020.100055

Cited by 36 publications

(17 citation statements)

References 43 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Following the deductions made in the literature relative to the conventional DCO-OFDM, ACO-OFDM and FLIP-OFDM, it is therefore logical to seek measures for improving upon the BER and spectral performances of the FLIP scheme since it surpasses the DCO and ACO schemes [28,29]. In view of the important parameters of the optical OFDM scheme; transmit power, throughput, bit error rate and signal to noise ratio, it is imperative to optimize the scheme such that the throughput is maximized at low transmit power.…”

Section: Methodsmentioning

confidence: 99%

A Novel Adaptive OFO-OFDM Modulation for Visible Light Communication

Ibhaze

Edeko

Orukpe

2021

Süleyman Demirel Üniversitesi Fen Bilimleri Enstitüsü Dergisi

View full text Add to dashboard Cite

Radio frequency techniques have been deployed in the past time for wireless communication and following its spectral crunch and limited throughput, the visible light spectrum with enormously large bandwidth and potentials for high throughput is being investigated in this work. This study is aimed at investigating and modeling a signal conditioning scheme in the visible light spectrum in view of enhancing the throughput of the network. To effectively enhance communication throughput, a possible solution is to deploy multicarrier techniques. In this work, an adaptive Optimized Flipped Optical (OFO) OFDM is proposed for improved throughput using Lagrange Multiplier and Broyden Fletcher Goldfarb Shanno Algorithm (BFGSA). The Lagrange Multiplier technique was used to formulate the model for the optimization of the throughput constrained by the bit error rate (BER) and the total subcarrier transmit power whereas the BFGSA was used for the estimation of the approximation to the Hessian matrix for the computation of the optimal throughput value. Results showed improved spectral efficiency in favor of the proposed algorithm when compared with the conventional schemes. Further validations revealed the performance superiority of the proposed algorithm when compared with Castel, Wyglinski and Bedeer algorithms under comparable operating conditions for a given average signal to noise ratio (SNR).

show abstract

Section: Methodsmentioning

confidence: 99%

A Novel Adaptive OFO-OFDM Modulation for Visible Light Communication

Ibhaze

Edeko

Orukpe

2021

Süleyman Demirel Üniversitesi Fen Bilimleri Enstitüsü Dergisi

View full text Add to dashboard Cite

show abstract

“…Further, real-time VLC systems generally utilize the basic on-off keying (OOK) modulation method which is not resources and hardware rigorous because of high data and signal processing requirements. Nevertheless, the OOK-based VLC system has comparatively low bandwidth and transmission rates in contrast with the more complicated method, they can be enhanced to sufficiently perform data communications with PONs [6][7][8]. In this paper, a hybrid PON-VLC indoor broadcasting system for single and multi-storey SBs has been proposed and investigated.…”

Section: Introductionmentioning

confidence: 99%

A novel hybrid wavelength division multiplexing integrated NG PON-VLC systems based TWDM/OCDMA for green smart building applications

Kumari

Hayal

Elsayed

et al. 2023

Preprint

View full text Add to dashboard Cite

Green and smart buildings (SBs) are promising solutions to the fast-growing and ongoing urbanization around the globe and are the composition of huge services. The SB can acquire a tremendous amount of information and perform proper handling of many broadcasting residents accordingly. With the abrupt increase in the high-quality data transmission demands over long reach for the large number of connected residents in SBs, conventional data transmission techniques are inadequate to provide adequate services. Thus, in this paper, to improve the intelligence and reliability of SBs with high overall efficiency, cost-effectiveness, and security, a hybrid passive optical network (PON) and visible light communication (VLC) indoor broadcasting system is proposed. The bidirectional hybrid PON-VLC consists of integrated time and wavelength division multiplexing (TWDM) and wavelength division multiplexing (WDM) with optical code division multiplexing (OCDMA) PON with red green blue employed light emitting diodes (RGB LEDs) based VLC system. Seven OCDMA codes are utilized in the proposed work at a 10/2.5Gbps per channel transmission rate over hybrid fiber-VLC channels to strengthen the system performance. The simulation results show that the modified new zero cross-correlation (MNZCC) code outperforms other codes and provides a faithful 100km fiber length and 5m VLC range for 200 active residents. Moreover, VLC distance can be incremented up to 10m wireless range by increasing the received aperture diameter of 25cm. Also, the numerical analysis, as well as comparative performance, depicts the superiority of PON-VLC under the impact of impairments and noise in fiber-VLC link-based SBs.

show abstract

“…1 The external light source is another important issue that produces low SNR, resulting in transmission data distortion in indoor VLC systems. 2 A solution to the congestion problem is possible with a frequency of around 300 THz. Another factor is dimming and flickering, which affect the data rate when communicating with visible light.…”

Section: Introductionmentioning

confidence: 99%

“…Other techniques affecting data rate degradation, such as an improper wide field of view (FOV), an improper line of sight (LOS), and an improper angular diversity receiver (ADR) 1 . The external light source is another important issue that produces low SNR, resulting in transmission data distortion in indoor VLC systems 2 . A solution to the congestion problem is possible with a frequency of around 300 THz.…”

Section: Introductionmentioning

confidence: 99%

Design of matched filter for signal‐to‐noise ratio maximization to improve data rate

Prakash

Manimegalai

2022

Micro & Optical Tech Letters

View full text Add to dashboard Cite

The matched filter is an optimal linear filter for maximizing signal-to-noise ratio (SNR) in the presence of additive random noise. Learning-based matched filter is the proposed work. The proposed model supports (i) maximizing the SNR and (ii) setting the threshold, it is also called an intelligent matched dual tire filter. This improves the SNR by about 20 dB and the corresponding data rate to over 400 MBit/s. The bit error rate for 20 dB is very lower than FEC (10 −3 ) of up to 10 −7 . The accuracy of the proposed matched learning filter is proved to be above 95%. Indoor visible light communication is one of the applications, and it can also be used for image processing and outdoor communication such as satellite and radar communication. It is obvious for communication as it avoids signal degradation, lobing, and overfitting to achieve a better data rate. This requires funding support and infrastructure facility that can be used to deploy the proposed algorithm in the real-time scenario in the future.

show abstract

High capacity data rate system: Review of visible light communications technology

Cited by 36 publications

References 43 publications

A Novel Adaptive OFO-OFDM Modulation for Visible Light Communication

A Novel Adaptive OFO-OFDM Modulation for Visible Light Communication

A novel hybrid wavelength division multiplexing integrated NG PON-VLC systems based TWDM/OCDMA for green smart building applications

Design of matched filter for signal‐to‐noise ratio maximization to improve data rate

Contact Info

Product

Resources

About