Category Archives The Future

400G - we're making the right mistakes

Con Houlihan, the great Irish sports writer from my hometown of Castleisland, once replied to a young poet who had shared his writing, “Keep going. You’re making all the right mistakes.” As a young boy, the words did not fully resonate with me, but now—a bit older and hopefully wiser—I can see the wisdom therein […]

Evolution of Fronthaul

This is the fifth in a series of blog posts on the Evolution of Fronthaul, links to past posts below. Preparing for Massive MIMO and 5G As CPRI technology is increasingly being deployed in cell densification and CRAN projects, eCPRI is starting to receive the attention of the global wireless community. As I outlined in […]

 This is a re-post of an article in Gazettabyte, © Roy Rubenstein 2017 The race is on to deliver 400-gigabit optical interfaces in time for the next-generation of data centre switches expected in late 2018. The industry largely agrees that a four-wavelength 400-gigabit optical interface is most desirable yet alternative designs are also being developed. Optical […]

cellular towers

Part 2 of the Evolution of Fronthaul Networks (read Part 1: Intro to Fronthaul and Part 3: CPRI ) As we learned in part 1, fiber deployment permits the placement of RRH’s closer to the antenna. Also known as light radio, this RRH placement has significantly improved the energy efficiency of cellular networks as the […]

Fronthaul? Until few years it was unknown for most involved in network deployment. Smart phones, the explosive growth in use of media reach apps and the competitive pressure for operators to offer higher data limits have changed the role of fronthaul completely. One can hardly oversee the rising number of antennas and radios mounted on […]

In this Olympic year, the motto Citius, Altius, Fortius (Latin for Faster, Higher, Stronger) seems very relevant to where we are with Ethernet networking. We need faster bandwidth, higher levels of service and stronger performance to push around all those videos of cats—as well as the more serious (and less cute) business traffic. Approximately every […]

This post comes from Viavi’s Optical Security and Performance Products (OSP) business. OSP is a leader in high performance thin film optical coatings, providing light management solutions to government, aerospace, consumer electronics, automotive, anti-counterfeiting and instrumentation markets. It’s not every day that NASA launches a spacecraft into outer space with the mission to study and […]

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