26 Gbit/s LiFi System With Laser-Based White Light Transmitter

Lee, Changmin; Islim, Mohamed Sufyan; Das, Sovan; Sparks, Adrian; Videv, Stefan; Rudy, Paul; Shah, Binith; McLaurin, M.; Haas, Harald; Raring, J.W.

doi:10.1109/jlt.2021.3124942

Cited by 31 publications

(12 citation statements)

References 36 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The concept of light-based IoT was proposed in [350], [351]. New generation of lighting devices are entering the market which are based on blue laser that excite phosphor.In [352], a dual wavelength (blue converted to white light plus IR) was presented and the aggregate data rate was 26 Gbps. Compared to other light bands, UV has lower background noise and higher atmospheric scattering, making it promising for communications for non-line-of-sight (NLoS) links [353].…”

Section: Energy-neutral Devices [338]mentioning

confidence: 99%

“…LiFi lends itself to simultaneous high speed data transmission and LiDAR. Kyocera Soraalaser (KSLD) has demonstrated this capability based on laserlight devices [581]. A collaboration between KSLD and the LRDC led to the development of a wavelength division multiplex (WDM) LiFi demonstrator capable of 105 Gbps using wavelengths in the visible and infrared spectrum.…”

Section: B Testbeds For 6g Key Technologiesmentioning

confidence: 99%

See 1 more Smart Citation

On the Road to 6G: Visions, Requirements, Key Technologies, and Testbeds

Wang

You

Gao

et al. 2023

IEEE Commun. Surv. Tutorials

459

View full text Add to dashboard Cite

show abstract

Section: Energy-neutral Devices [338]mentioning

confidence: 99%

Section: B Testbeds For 6g Key Technologiesmentioning

confidence: 99%

On the Road to 6G: Visions, Requirements, Key Technologies, and Testbeds

Wang

You

Gao

et al. 2023

IEEE Commun. Surv. Tutorials

459

View full text Add to dashboard Cite

show abstract

“…PTICAL wireless communication (OWC) is an attractive technique to meet the ever-increasing demand on data traffic and complement existing radio frequency (RF) systems for various applications, such as light fidelity (Li-Fi), underwater communication, satellite communication and so on [1][2][3][4][5][6][7][8]. OWC demonstrates many advantages.…”

Section: Introductionmentioning

confidence: 99%

Fully-Integrated SPAD-Based Receiver With Nanosecond Dead Time for Optical Wireless Communication

Tang

et al. 2023

J. Lightwave Technol.

View full text Add to dashboard Cite

This paper presents the design and characterization of a fully-integrated receiver based on single-photon avalanche diodes (SPADs) with nanosecond dead time for high-speed high-sensitivity optical wireless communication (OWC). The receiver consists of a 4x4 SPAD array that is based on a p-well/deep n-well (DNW) structure, and each SPAD is integrated with a tunable front-end circuit to perform quench and reset. In addition, an OR tree is designed to combine the 16 channels of output from the front-end circuits to generate a single data stream for signal processing, and an output buffer is implemented as the interface to drive 50-Ω loading for testing purpose. Fabricated in a standard 180 nm CMOS process, the receiver achieves a minimum dead time of about 2.5 ns. Bit error rate (BER) measurement of the implemented receiver indicates a sensitivity of -33.9 dBm at 100 Mb/s for a BER of 2x10 -3 and a wavelength of 520 nm, where on-off keying (OOK) modulation and a 2 15 -1 pseudorandom binary sequence (PRBS-15) are employed. To recover the transmitted data stream from the received signal, a signal processing flow specific for SPAD-based receivers is proposed and implemented.

show abstract

“…These optoelectronic devices are commonly applied in optical communication, such as fiber communication, and each has advantages and disadvantages. Using an LD as the transmitter can easily realize high-speed communication beyond Gbps [6], [7]. However, high cost and harsh operating conditions limit the development of the LD-VLC scheme.…”

Section: Introductionmentioning

confidence: 99%

Physical-Layer Network Coding Enhanced Visible Light Communications Using RGB LEDs

Xiong

Zhang

et al. 2023

IEEE Photonics J.

View full text Add to dashboard Cite

Compared with traditional radio frequency (RF)based techniques, the advantages of wider bandwidth, higher security, and stronger electromagnetic immunity (EMI) capability make visible light communications (VLC) a good candidate technology for the 6th generation (6G) wireless communications. Red, green, and blue (RGB) light-emitting diodes (LEDs) based VLC has become an important research branch due to its low price and high reliability. However, the saturation of photodiode (PD) caused by the ambient background light may seriously degrade the bit error rate (BER) performance of an RGB-VLC system's three spatially uncoupled information streams (i.e., red, green, and blue LEDs can transmit different data packets simultaneously) in practical applications. To mitigate the ambient light interference in point-to-point RGB-VLC systems, we propose, PNC-VLC, a network-coded scheme that uses two LEDs with the same color at the transmitter to transmit two different data streams and we make use of the naturally overlapped signals at the receiver to formulate physical-layer network coding (PNC). The adaptivity of PNC-VLC could effectively improve the BER degradation problem caused by the saturation of PD under the influence of ambient light. We conducted simulations based on the parameters of commercial off-the-shelf (COTS) products to prove the superiority of the PNC-VLC under the influence of four typical illuminants. Simulation results show that the PNC-VLC system can maintain a better and more stable system BER performance under different ambient background light conditions. Remarkably, with 2/3 throughput efficiency, PNC-VLC can bring 133.3% gain to the BER performance when compared with the traditional RGB-VLC systems under the Illuminant A interference model, making it a good option for VLC with unpredictable ambient background interferences.

show abstract

26 Gbit/s LiFi System With Laser-Based White Light Transmitter

Cited by 31 publications

References 36 publications

On the Road to 6G: Visions, Requirements, Key Technologies, and Testbeds

On the Road to 6G: Visions, Requirements, Key Technologies, and Testbeds

Fully-Integrated SPAD-Based Receiver With Nanosecond Dead Time for Optical Wireless Communication

Physical-Layer Network Coding Enhanced Visible Light Communications Using RGB LEDs

Contact Info

Product

Resources

About