Source: https://www.tomshardware.com/networ...ge-incidents-shine-spotlight-on-project-heist
Interesting. I wonder why they don't dig a trench and put the cables in it. Satellite has very low bandwidth compared to cable. I doubt they can divert the entire broken cable capacity through satellite immediately.
The alliance wants to build a system that seamlessly switches between undersea cables and satellites in case of disruption.
Because of the increasing number of undersea cable disruptions happening in the past couple of years, NATO is building on a system that will locate damage to undersea cables with an accuracy of one meter and find more routes that data can take if a disruption does occur in a particular line. This project will be called HEIST, says the IEEE in a report, which stands for Hybrid Space-Submarine Architecture Ensuring Infosec of Telecommunications.
Satellites are the primary backups to undersea cables, but their bandwidth is far behind physical connections. For example, Google’s latest fiber-optic lines can hit 340 terabits per second. In contrast, the frequency used by most satellites—12 to 18GHz—can only handle about 5 gigabits per second or about 0.0015% of the maximum throughput of Google’s fiber connection.
Work is underway to upgrade satellites from radio transmissions to lasers, increasing the speed by about 40 times to 200 Gbps. Starlink already uses this technology to communicate between its satellites, while Amazon is also developing it for its own Project Kuiper. However, it still faces challenges, like poor visibility and targeting precision between the satellite and ground station.
Because this is a major NATO project, the alliance plans to open-source part of the process. Making it public would allow anyone interested to find holes and make many iterations.
Interesting. I wonder why they don't dig a trench and put the cables in it. Satellite has very low bandwidth compared to cable. I doubt they can divert the entire broken cable capacity through satellite immediately.