Toward practical integration of dual-use VLC within 5G networks

Rahaim, Michael; Little, Thomas D. C.

doi:10.1109/mwc.2015.7224733

Cited by 77 publications

(48 citation statements)

References 5 publications

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“…In addition, VLC has the potential to ease the already crowded radio spectrum in a highly localized system; VLC is considered to be the most eligible candidate to resolve the spectrum crunch issues –. Here, a comparison is given in Table about RF, VLC, and mmWave, which will justify the choice of VLC as a supplementary technology in 5G and beyond networks . In VLC, dead spots exist in all practical scenarios, which limits the full coverage, and stan‐dalone VLC systems might not be very fruitful in every case.…”

Section: Applications Of Visible Light Communicationmentioning

confidence: 99%

Visible light communication – An architectural perspective on the applications and data rate improvement strategies

Saadi

Ahmad

Saleem

et al. 2018

Trans Emerging Tel Tech

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Demand for bandwidth hungry applications and mobile services is pushing an unquenchable need for wireless capacity. Existing radio frequency networks are characterized by shared medium, inadequate spectrum, and restricted user capacity. Solid state lighting is modernizing indoor as well as outdoor illumination. The capability of quick switching of light emitting diode makes them superior to other lighting sources enabling simultaneous use as a communication and illumination device. Visible light communication (VLC) using light emitting diodes is an attractive approach for many networking scenarios and is considered as a complementary technology for future heterogeneous wireless networks. This article presents an architectural perspective on the applications and data rate improvement strategies. A wide range of VLC applications have been investigated, comparison has been drawn with radio frequency, and generalized network architecture is also proposed. Numerous applications of VLC are data rate intensive, so data rate improvement approaches have also been studied. At the end, a lucid conclusion is drawn about the applicability, acceptability, and utilization of VLC and co‐VLC–based systems.

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Section: Applications Of Visible Light Communicationmentioning

confidence: 99%

Visible light communication – An architectural perspective on the applications and data rate improvement strategies

Saadi

Ahmad

Saleem

et al. 2018

Trans Emerging Tel Tech

View full text Add to dashboard Cite

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“…Given the range of operating conditions stemming from potential UD location and rotation, we will show that the effect of interference varies throughout the environment and a Gaussian interference model does not always provide an accurate performance evaluation. It should also be noted that signal overlap can be used constructively if the system of luminaires is coordinated and MIMO or spatial modulation (SM) techniques are used [11], [12]; however this coordination is not trivial and independent links between multiple transmitters and multiple UDs offers great potential for improvement in aggregate system throughput within environments consisting of densely deployed APs and dense distributions of UDs [4].…”

Section: B Vlc System Propertiesmentioning

confidence: 99%

“…There are tradeoffs between bandwidth density (b/s/m 2 ) and coverage area when comparing optical small cells and conventional radio frequency (RF) small cells. However, heterogeneous networks (HetNets) offer the bandwidth density benefits of VLC and the coverage of RF cells for highly mobile devices [4].…”

Section: Introductionmentioning

confidence: 99%

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Optical interference analysis in Visible Light Communication networks

Rahaim

Little

2015

2015 IEEE International Conference on Communication Workshop (ICCW)

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Visible Light Communication (VLC) is gaining interest as a viable option to supplement next generation wireless communication systems with dense directional wireless cells. The effect of interference is important when analyzing aggregate performance of these systems. Just as signal to noise ratio (SNR) is used to evaluate link performance when disturbances are primarily related to noise, signal to interference ratio (SIR) and signal to interference plus noise ratio (SINR) are metrics of interest for evaluation of systems in the presence of interference. For these metrics to be used interchangeably with SNR, interference should be Normally distributed. This assumption is valid in the presence of many interferers when the central limit theorem applies; however, directionality in VLC systems often leads to scenarios with dominant interferers. In this paper, we analyze the validity of the Gaussian assumption in VLC systems and show that the theoretical error rate can be distorted by 100x or more when the assumption is erroneously observed. In addition, we define the distribution of commonly used VLC modulation schemes in relation to average optical power in order to provide fair comparison under constraints of the optical channel. 978-1-4673-6305-1/15/$31.00 ©2015 IEEE IEEE ICC 2015 -Workshop on Visible Light Communications and Networking (VLCN)

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“…In order to meet these demands, 5G networks will have to rely on other more efficient technologies. It is highly likely that it will incorporate smaller cells (atto-cells), additional spectrum, energy efficient communication, and heterogeneous networks (HetNet) integration [3].…”

Section: Introductionmentioning

confidence: 99%

Compressed sensing-based channel estimation for ACO-OFDM visible light communications in 5G systems

Niaz

Imdad

Ejaz

et al. 2016

J Wireless Com Network

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In this paper, we propose a compressive sensing (CS)-based channel estimation technique for asymmetrically clipped optical-orthogonal frequency division multiplexing (ACO-OFDM) visible light communications (VLC) in 5G systems. We proposed a modified version of sparsity adaptive matching pursuit (SAMP) algorithm which is named as self-aware step size sparsity adaptive matching pursuit (SS-SAMP) algorithm. It utilizes the built-in features of SAMP and with additional ability to select step size according to the present situation, hence term self-aware, can provide better accuracy and low computational cost. It also does not require any prior knowledge of the sparsity of the signal which makes it self-sufficient. CS-based algorithms such as orthogonal matching pursuit (OMP), SAMP, and our proposed SS-SAMP were implemented on ACO-OFDM VLC. The paper is supported by simulation results which demonstrate performance of proposed scheme in terms of bit error rate (BER), mean square error (MSE), computational complexity, and key VLC parameter (LED nonlinearity, shot noise, thermal noise, channel response, and peak-to-average power ratio (PAPR). It is shown that the SS-SAMP is a good candidate for ACO-OFDM-based VLC that are mobile and have limited processing power, based on its performance and computational complexity.

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Toward practical integration of dual-use VLC within 5G networks

Cited by 77 publications

References 5 publications

Visible light communication – An architectural perspective on the applications and data rate improvement strategies

Visible light communication – An architectural perspective on the applications and data rate improvement strategies

Optical interference analysis in Visible Light Communication networks

Compressed sensing-based channel estimation for ACO-OFDM visible light communications in 5G systems

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