From Information Theory to Space Laser Comms

The Necessity of a Multi-disciplinary Approach to Optical Wireless!

Due to the increasing scarcity of RF spectrum and growing interference due to multiple users, deploying next generation high-speed wireless networks is becoming increasingly difficult. The use of unlicensed optical bands for wireless communications has been heralded as an exciting development for future broadband access for indoor, over long distances terrestrially, underwater and for space communication links.

Continue reading “From Information Theory to Space Laser Comms”

Self Adaptive Programmable Optical Processor for FSO turbulence mitigation

In a Free Space Optics (FSO) link, there are several phenomena that can affect and degrade the performance of the channel. Among them, atmospheric turbulence plays a relevant role and today is the main obstacle in the implementation of high bitrates reliable FSO communication systems. The effect of turbulence on optical beams can be described as a random phase and amplitude modulation which results in a beam profile affected by scintillation.

Continue reading “Self Adaptive Programmable Optical Processor for FSO turbulence mitigation”

Why Optical Wireless Communication is Ready for 6G!

Security, energy efficiency, data density and peak data rates of up to 1 Tbps are some of the key performance indicators (KPIs) of 6G. With current radio frequency (RF) technologies it will be difficult to advance all these KPIs jointly due to fundamental spectrum limitations in the RF domain. What is needed to achieve step-change improvements in all those areas of interest, is substantial new spectrum, devices at high optical-to-electrical (OE) conversion efficiencies and the ability to spatially control signal radiation tightly and at low energy cost.

Continue reading “Why Optical Wireless Communication is Ready for 6G!”

How to achieve 1 Tbps throughput over an 36000 km free-space optical link

For the next generation of very high throughput communication satellites, free-space optical (FSO) communication between ground stations and geostationary telecommunication satellites provide a potential solution to overcome the limitations of RF links. Moving from RF to optical wavelengths increases the carrier frequency, the bandwidth and thereby the throughput with approximately 3 orders of magnitude.

Continue reading “How to achieve 1 Tbps throughput over an 36000 km free-space optical link”

The role of integrated photonics in optical wireless communication systems

boudweijn docter

Photonic integration has become a mature technology and is being used in high volume in fiber-based communication networks, both for long haul and short span connections. In this presentation we will look at what role this technology can play in optical wireless networks. What are the similarities, but also what are the differences?

Continue reading “The role of integrated photonics in optical wireless communication systems”

Improving global terrestrial telecom networks using Space-grade FSO technology

Luis Pedro Oliveira

Free-space optics is going to be standard in inter-satellite communication, as it promises higher data rates over ultra long distances, when compared to radio frequency. Aircision is bringing Space-grade FSO technologies down to Earth, providing high bit rates (+10Gbps) over considerable distances (+5km). It is a solution that makes it economically viable for telecom operators to expand their coverage, increase network capacity (data rates) and reach more customers. Considering, 45% of worldwide population is still not connected to high-speed internet, our solution ultimately contributes to an increased access to information and education, and reduce the digital divide.

Continue reading “Improving global terrestrial telecom networks using Space-grade FSO technology”

Beamsteering for optical wireless: opportunities and challenges

dominic O'brien

The demand for indoor wireless access to the internet continues to grow exponentially, creating high demands on the wireless spectrum, and the need for densely packed infrastructure to be able to meet this capacity. RF wireless systems are moving to higher frequencies, with the use of beamsteered RF links introduced as part of the 5G familly of standards as one example.

Continue reading “Beamsteering for optical wireless: opportunities and challenges”

Visible Light Positioning for Industrial Environments

nobby stevens

Nobby Stevens: In this presentation, the current state-of-the-art on visible light positioning for industrial environments will be covered. Starting from theoretical models, it will be shown why these approaches have inherent flaws that hinder a sufficient location estimation accuracy. It is demonstrated that a data-drive technique does counter the non-idealities of the transmitter, channel and receiver, leading to a very accurate position estimation.

Continue reading “Visible Light Positioning for Industrial Environments”

Interference handling for LiFi

interference

Dries van Wageningen, Xavier Chatel, Marcos Martinez Vázquez, Antonio Salas Moreno
Signify, High Tech Campus 7, Eindhoven, 5656AE, Netherlands
Maxlinear, Ronda Narcis Monturiol 11D, Valencia, 46980, Spain
dries.van.wageningen@signify.com

Topic Medium range: Indoor IR and visible light communications (VLC) for wireless local area networks (WLANs) and inter-vehicular and vehicle-to-infrastructure communications.

Continue reading “Interference handling for LiFi”