China’s satellite internet achieves 1Gbps, five times faster than Starlink
A team of Chinese researchers has broken new ground in satellite internet technology by achieving a remarkable 1Gbps data transmission from a satellite, a speed five times faster than what Starlink currently offers.
The breakthrough, which could revolutionise satellite internet, addresses one of the key limitations of space-based communications: atmospheric turbulence.
The development, led by Liu Chao from the Chinese Academy of Sciences and Professor Wu Jian from Peking University of Posts and Telecommunications, combines two advanced technologies – Adaptive Optics (AO) and Mode Diversity Reception (MDR) – to ensure fast, stable connections.
Researchers were able to develop a high-speed, reliable satellite internet connection capable of providing data transmission at 1Gbps, far surpassing the performance of current satellite services like Starlink.
While Starlink satellites orbit around 341 miles above Earth, the Chinese team's satellite operates at an impressive 22,807 miles above the planet, achieving these speeds despite the increased distance.
Chinese researchers have just achieved a new 1Gbps data transmission from a geostationary satellite – this kind of speed is unheard of, even for Elon Musk's Starlink. https://t.co/8jJpbG2gT7
This innovation is significant not only for its speed but also for its low error rate, which has increased by nearly 20% compared to previous methods.
The experiment was conducted using a 5.9-foot telescope at the Lijiang observatory in China, employing a two-watt laser, the equivalent of the power used by a nightlight.
Through a combination of optical adjustments and real-time signal selection, the researchers were able to maintain exceptional connection quality, even with the vast distance to the satellite.
The implications of this technology extend beyond internet use on Earth. Its potential could transform communications for space missions and satellite navigation systems.
Additionally, if this technology is successfully implemented, it may offer a more reliable internet service in remote areas, including places where traditional broadband is unavailable, providing an alternative to Starlink and other satellite providers.
However, it is still in the experimental phase, with the findings published in Acta Optica Sinica as a proof of concept.
If commercialised, it could challenge existing satellite internet services and lead to faster, more reliable connections for users around the globe.