Software defined VLC system: Implementation and performance evaluation

Hussain, Waqas; Uğurdağ, H. Fatih; Uysal, Murat

doi:10.1109/iwow.2015.7342278

Cited by 15 publications

(14 citation statements)

References 11 publications

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“…In 2011, a 1 Mbps video stream was achievable over 3 meters, when deployed on custom LED matrixes [25]. In 2015, Hussain et al tested the implementation of IEEE 802.15.7, they achieved results according to this standard, however transmission distance was limited to 1 m [26]. Nowadays, we are testing longer distances and mainly higher data rates, even on commercial light sources.…”

Section: Introductionmentioning

confidence: 99%

Visible Light Communication System Based on Software Defined Radio: Performance Study of Intelligent Transportation and Indoor Applications

2019

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In this paper, our first attempt at visible light communication system, based on software defined radio (SDR) and implemented in LabVIEW is introduced. This paper mainly focuses on two most commonly used types of LED lights, ceiling lights and LED car lamps/tail-lights. The primary focus of this study is to determine the basic parameters of real implementation of visible light communication (VLC) system, such as transmit speed, communication errors (bit-error ratio, error vector magnitude, energy per bit to noise power spectral density ratio) and highest reachable distance. This work focuses on testing various multistate quadrature amplitude modulation (M-QAM). We have used Skoda Octavia III tail-light and Phillips indoor ceiling light as transmitters and SI PIN Thorlabs photodetector as receiver. Testing method for each light was different. When testing ceiling light, we have focused on reachable distance for each M-QAM variant. On the other side, Octavia tail-light was tested in variable nature conditions (such as thermal turbulence, rain, fog) simulated in special testing box. This work will present our solution, measured parameters and possible weak spots, which will be adjusted in the future.

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Section: Introductionmentioning

confidence: 99%

Visible Light Communication System Based on Software Defined Radio: Performance Study of Intelligent Transportation and Indoor Applications

2019

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“…In addition to the above experiments conducted mainly with laboratory equipment or dedicated hardware designs on FPGA or microcontrollers, software-defined platforms, as a more flexible prototyping tool, were used in VLC experiments. For instance, in [10], a modified USRP (Universal Software Radio Peripheral) from National Instruments (NI) was integrated with an electro-optical front-end built with offthe-shelf components. This set-up was used to experimentally evaluate different modulations of IEEE 802.15.7 standard (i.e., Manchester encoded OOK and 4B6B encoded PPM).…”

Section: Introductionmentioning

confidence: 99%

Experimental Evaluation of a Software Defined Visible Light Communication System

Aly

Elamassie

Kebapci

et al. 2020

2020 IEEE International Conference on Communications Workshops (ICC Workshops)

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Visible light communication (VLC) allows the dual use of light-emitting diodes (LEDs) for illumination and communication purposes. With its large bandwidth and immunity to electromagnetic interference, VLC can be used as complementary and/or alternative to radio communications. In this paper, we present a comprehensive experimental evaluation of a softwaredefined VLC system with on-off keying for both line-of-sight (LOS) and non-line-of-sight (NLOS) scenarios. The experimental set-up is based on a pair of modified National Instruments USRPs coupled with a custom design front-end. In the measurement campaign, we vary the distance between 1 to 3 meters with a step size of 0.5 m. For each point in this LOS scenario, we measure signal-to-noise ratio (SNR) and bit error rate (BER) with and without a lens. We also evaluate the effect of the reception angle (i.e, no strict alignment) on system performance. We further evaluate the SNR performance for NLOS scenarios and demonstrate a robust performance due to the wide field-ofview of the front-end.

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“…Some experimental studies on VLC using software defined platforms were reported in [11]- [15]. For example, in [14], the popular software defined platform USRP (Universal software radio peripheral) from National Instruments (NI) was modified and integrated with a VLC front-end to experimentally evaluate the performance of several physical layer modes (i.e., Manchester encoded OOK and 4B6B encoded PPM) of IEEE 802.15.7 standard. Some experimental results on ACO-OFDM and DCO-OFDM with software defined platforms can be found in [12], [15].…”

Section: Introductionmentioning

confidence: 99%

Experimental Evaluation of Unipolar OFDM VLC System on Software Defined Platform

Aly

Elamassie

Uysal

et al. 2019

2019 15th International Conference on Telecommunications (ConTEL)

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With unique features and advantages, visible light communication (VLC) is considered as a powerful complementary wireless access technology to radio frequency solutions such as WiFi. To handle the frequency-selectivity of VLC channels particularly at high speeds, multi-carrier signaling in the form of orthogonal frequency division multiplexing (OFDM) is typically preferred. Among various variants of optical OFDM, unipolar OFDM (U-OFDM) stands outs with its better error rate performance. In this paper, we present the experimental evaluation of the bit error rate (BER) performance of a U-OFDM-based VLC system. In our experimental set-up, we use the popular software defined platform USRP (Universal software radio peripheral) from National Instruments customized with baseband cards and integrated with VLC front-ends. We first characterize the frequency-selective VLC channel. Then, we present BER performance against the estimated signal-to-noiseratio and confirm it through comparison with theoretical results.

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Software defined VLC system: Implementation and performance evaluation

Cited by 15 publications

References 11 publications

Visible Light Communication System Based on Software Defined Radio: Performance Study of Intelligent Transportation and Indoor Applications

Visible Light Communication System Based on Software Defined Radio: Performance Study of Intelligent Transportation and Indoor Applications

Experimental Evaluation of a Software Defined Visible Light Communication System

Experimental Evaluation of Unipolar OFDM VLC System on Software Defined Platform

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