Design and Implementation of an Integrated Visible Light Communication and WiFi System

Tang, Aimin; Xu, Chao; Zhai, Bangzhao; Wang, Xudong

doi:10.1109/mass.2018.00036

Cited by 4 publications

(5 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…On the other hand, mainly downlink connection pushes the huge bandwidth advantage of VLC link. Typically uplink is performed using an infrared link [34], or the already existing Wi-Fi uplink [35] in integrated Wi-Fi and Li-Fi service.…”

Section: Fig2 Li-fi Ideamentioning

confidence: 99%

See 1 more Smart Citation

Visible Light Communication Survey

Udvary¹

2019

Infocommunications journal

View full text Add to dashboard Cite

Communication applying visible light technology is a novel approach. Visible Light Communication (VLC) development is motivated by the increasing demand for wireless communication technologies. It has the potential to provide highspeed data communication with good security and improved energy efficiency. The rapid evolution of VLC was sustained by the LEDs performances. The Light-Emitting-Diode (LED) luminaires are capable of switching to the different light intensity at a fast rate. This function can be used for data transmission. This article focuses on the physical layer of the VLC links. It reviews the technology, the topology of the proposed connection, and the benefits of this approach. The main research trends are identified emphasizing state of the art in this area. It shows how VLC technology evolved and what are the performances achieved at this time. Various structures of the transmitter and receiver are studied, and different modulation schemes are investigated. Finally, numerous applications of VLC technology are presented.

show abstract

Section: Fig2 Li-fi Ideamentioning

confidence: 99%

“…One useful approach, then the VLC technology, offers high data rate downstream from the router to the mobile terminal. However, the upstream is provided by radio frequency communication from the mobile terminal to the router [35].…”

Section: Fig2 Li-fi Ideamentioning

confidence: 99%

Visible Light Communication Survey

Udvary¹

2019

Infocommunications journal

View full text Add to dashboard Cite

show abstract

“…drives VLC as a solution to the bandwidth shortage problem. 4 The term VLC refers to the usage of optical communications in free space using the visible band. VLC is emerging as a viable choice for next-generation indoor wireless networks with high capacity because of its wide range of unlicensed spectrum, 5 reduced power consumption, 6 low cost, 7 increased security 8 and simpler LED modulation techniques.…”

Section: Introductionmentioning

confidence: 99%

“…9 Commercially available LEDs have modulation bandwidths ranging from 2 to 20 MHz. 10 To realize high-speed data transfer in VLC, the low LED modulation bandwidth (2)(3)(4)(5)(6)(7)(8)(9)(10)(11)(12)(13)(14)(15)(16)(17)(18)(19)(20) necessitates the use of multi-carrier modulation (MCM) methods. 11 Nowadays, orthogonal frequency division multiplexing (OFDM) has been widely utilized as an MCM technique in VLC.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

An ADO‐OFDM with integrated precoding, companding and optimized power allocation methods for high‐speed data transmission in visible light communication

S.,

N. R.

2024

Trans Emerging Tel Tech

View full text Add to dashboard Cite

Visible light communications (VLC) has received a lot of attention in recent studies because of its benefits over radio‐frequency (RF) communications. It is a short‐range optical wireless communication system that uses light‐emitting diodes (LEDs) as transmitters. Optical orthogonal frequency division multiplexing (OFDM) is an auspicious technology for VLC high‐speed data transfer. The use of OFDM in a VLC system raises the system's peak‐to‐average power ratio (PAPR). The intrinsic non‐linearity of LED is a key concern in an asymmetrically clipped DC‐biased optical OFDM (ADO‐OFDM) system due to its high PAPR. Also, conventional ADO‐OFDM modulation scheme cannot be used for accommodating different demands of services in downlink multiple access due to the restriction of direct current biased optical OFDM (DCO‐OFDM) and asymmetrically clipped optical (ACO‐OFDM) transmission on odd and even subcarriers. To tackle this issue, a modified ADO‐OFDM (MADO‐OFDM) is proposed that adjusts the numbers of subcarriers required for the transmission of ACO‐OFDM and DCO‐OFDM adaptively based on the requests of services in downlink multiple access. Also, the proposed MADO‐OFDM is integrated with a discrete Hartley Matrix transform (DisHMT) precoder and Generalized Piecewise Linear Compander (GPLD) to provide high‐speed data transmission with less PAPR. In addition, the power is allocated to the proposed MADO‐OFDM system optimally by maximizing the channel capacity based on the Aquila optimizer algorithm. The simulation results reveal that the suggested system's PAPR is reduced by 2.4 dB and 0.8 dB, respectively, compared to conventional ADO and hybrid ADO‐OFDM. It also confirms that the suggested generalized PLC can greatly increase BER without affecting the PAPR performance.

show abstract

Rateless Adaptation for Mobile Visible Light Communications

Xie

Tang

et al. 2020

2020 International Conference on Computing, Networking and Communications (ICNC)

View full text Add to dashboard Cite

Design and Implementation of an Integrated Visible Light Communication and WiFi System

Cited by 4 publications

References 23 publications

Visible Light Communication Survey

Visible Light Communication Survey

An ADO‐OFDM with integrated precoding, companding and optimized power allocation methods for high‐speed data transmission in visible light communication

Rateless Adaptation for Mobile Visible Light Communications

Contact Info

Product

Resources

About