A review of the physical principles behind the Wi-Fi /5G wireless revolution

wi-fiFollowing on from a previous article on DSL and its scientific bases, I now want to review the fundamentals of another technology: radio. As with a DSL, the ability to transmit data in any radio communications system – from the very first Marconi experiments to 5G networks – is bound by Shannon’s equation, based on the channel’s bandwidth and signal-to-noise ratio. In radio, we also have another interesting equation that can tell us the received signal strength when the transmitter power and frequency, antenna characteristics and distance to the receiver are known.

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Ricardo Saiz Villoria: Ricardo Saiz, telecommunications engineer, is part of Teldat’s R&D department. He specializes in hardware, and is responsible for electronic design and equipment certification.

Will 5G solve the railway dilemmas?

5gEvery day we hear more news on 5G, its progress and evolution, as the demand for connectivity between vehicles, towns and cities, devices and sensors continues to grow. As you might expect, the railway sector and it’s train communications are no less affected, being one of the main players anxiously awaiting these new developments to adapt the 5G technology and use in their area of railway intra and intercommunication.

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Francisco Guerrero: Francisco Guerrero, Telecommunications Engineer, is the Head of Teldat's Product Marketing Department.

Mobile networks. From 4G to 5G in 2020

5g technologyFifth generation mobile networks or 5G networks, are currently being developed and tested by several carriers with a view to commercial deployment in 2020.

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Francisco Navarro: Francisco Navarro, graduated in Physical Science, is a Business Line Manager working within the Marketing Department and responsible for the Teldat Corporate Routers.

5G: the expansion of small cells

5GFuture deployments of 5G mobile telephone networks will bring large-scale small-cell roll-outs. A small cell is nothing more than a miniature base station, or low-powered mobile telephone node, that improves a network’s spectral efficiency by allowing the same frequencies to be reused within a geographic area thanks to its limited range (10 meters to a few kilometers).

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Pablo Alonso: Pablo Alonso is Telecommunications and Development Engineer in the Teldat R&D Department. Within this department is part of the team dedicated to the Industrial & Mobility business line and he is specialized in cellular connections.

5G, Artificial Intelligence, SD and more!

SDWe are approaching the end of Q1 in 2018 and for various reasons across the world, I believe that in the coming days many of our readers will probably be taking a short break. Whether its because of traditional festive holidays that are coming up in many parts of the world or because of the change in the seasons. So, this is a great moment to pause and think how 2018 has progressed so far.

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Javier García Berjano: Online & Corporate marketing manager at Teldat. Javier manages the web, blog and other social media, as well as corporate marketing areas in collaboration with the different Teldat business units.  
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