New strategy in wireless communication: Li-Fi for delivery of broadband and media content in aircraft without intrusion

Vijayalakshmi, A.; Sudha, Nesa

doi:10.1109/wispnet.2017.8300079

Cited by 2 publications

(2 citation statements)

References 4 publications

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“…It requires taking into consideration RF signal orientation and polarization; therefore a careful antenna design is required [87]. There is an arising new networking technology called light fidelity Li-Fi [90][91][92], which may limit the domination of RF communication, since it claims that it is 100 times faster than the traditional Wi-Fi and can offer a bi-directional communication. In future work, the principle of communication between the transmitter and the head-mountable device can be integrated to a Li-Fi setup for mice in vivo arena for high data rate transmission.…”

Section: Wireless Communicationmentioning

confidence: 99%

A Wireless Head-Mountable Device With Tapered Optical Fiber-Coupled Laser Diode for Light Delivery in Deep Brain Regions

Emara

Pisanello

Sileo

et al. 2019

IEEE Trans. Biomed. Eng.

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Optogenetics sets new experimental paradigms that can reveal cell type-specific contributions on the neural basis of behavior. Since most of the available systems for this purpose are based on approaches that tether animals to a set of cables, recent research activities have been focused on minimizing external factors that can alter animal movements. Current wireless optogenetic systems are based on waveguide-coupled LED and implanted LEDs. However, each configuration separately suffers from significant limitations, such as low coupling efficiency, penetration depth and invasiveness of waveguide-coupled LED, and local heat generated by implanted LEDs. This work presents a novel wireless head-mountable stimulating system for a widevolume light delivery. The device couples the output of a semiconductor laser diode (LD) to a tapered optical fiber (TF) on a wireless platform. The LD-TF coupling was engineered by setting up far-field analysis, which allows a full exploitation of mode division demultiplexing properties of TFs. The output delivered light along the tapered segment is capable of stimulating structures of depths up to ~2mm. TFs are tapered to a gradual taper angle (Ψ~2° to Ψ~10°) that ends with a sharp tip (~500 nm) for smooth insertion and less invasiveness. Thus, the proposed system extends the capabilities of wireless optogenetic by offering a novel solution for wide volume light delivery in deep brain regions.

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Section: Wireless Communicationmentioning

confidence: 99%

A Wireless Head-Mountable Device With Tapered Optical Fiber-Coupled Laser Diode for Light Delivery in Deep Brain Regions

Emara

Pisanello

Sileo

et al. 2019

IEEE Trans. Biomed. Eng.

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“…Already existent lighting system in mines could communicate with underground sensors/actuators. Furthermore, VLC may offer improved usage security in RF hazardous environments such as aircrafts [18,19] and highly flammable environments [20]. Due to lighting systems' typical configuration, the light fixtures being in the ceiling illuminating downwards, the star network topology is naturally implemented in VLC systems: while node devices are spatially spread across a lit area, the ceiling light fixtures act as gateways, communicating both with the nodes and the Internet.…”

Section: Introductionmentioning

confidence: 99%

Optimized Analog Multi-Band Carrierless Amplitude and Phase Modulation for Visible Light Communication-Based Internet of Things Systems

Rodrigues

Figueiredo

Alves

2021

Sensors

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This paper presents a multi-user Visible Light Communication (VLC)-based Internet of Things (IoT) system using multi band-Carrierless Amplitude and Phase (m-CAP) modulation for IoT applications. The proposed system uses a digital m-CAP modulator embedded in a ceiling LED light fixture and analog receivers, aiming at low-cost, low-power, and small-sized IoT devices. The performance was evaluated in terms of the filtering stage design and the usage of guard bands. Different pairs of emitter and receiver filters were considered. While Bessel and Butterworth analog filters were tested in the analog receiver, the digital m-CAP modulator pulse shaping filter considered raised cosine filters, as well as digital matched filters for the analog Bessel and Butterworth filters. Regarding the guard bands, two approaches were considered: either by using the raised cosine roll-off factor (bandwidth compression) or by suppressing the even bands. The Bit Error Rate (BER) performance was obtained by simulation. The usage of the Bessel filter in the receiver, along with a digital matched filter, proved to be the best solution, achieving a BER lower than 10−3 for an Eb/No of 6 dB, using a third-order filter. Furthermore, guard bands should be used in order to mitigate inter-band interference in order to have improved performance when multiple users intend to simultaneously communicate.

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New strategy in wireless communication: Li-Fi for delivery of broadband and media content in aircraft without intrusion

Cited by 2 publications

References 4 publications

A Wireless Head-Mountable Device With Tapered Optical Fiber-Coupled Laser Diode for Light Delivery in Deep Brain Regions

A Wireless Head-Mountable Device With Tapered Optical Fiber-Coupled Laser Diode for Light Delivery in Deep Brain Regions

Optimized Analog Multi-Band Carrierless Amplitude and Phase Modulation for Visible Light Communication-Based Internet of Things Systems

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