Japanese Researchers Achieve Record 56Gbps Wireless Transmission

Mickeycaskill writes: Fujitsu and the Tokyo Institute of Technology have achieved a wireless transmission of 56Gbps over a 10cm distance using millimeter-wave (mmWave) frequencies located between 30-300GHz. While cellular capacity is improved in some areas through the addition of new mobile masts and small cells, the fibre networks used to link these sites to the wider network is either absent or not feasible to deploy in urban locations or on difficult terrain. This makes the wireless capacity of mobile masts even more important. To achieve the speed, researchers developed custom chips and interface technology to boost capacity of wireless signals without significant data loss.

It is claimed that by pairing the technology developed with a high-output amplifier, the same effect can be achieved outdoors and could be commercialised for mobile operators by 2020.

Comments

Physics puts enormous limits on using 30-300GHz

[Muad'Dave]

The FCC has a publication on the behavior of RF in the 30-300GHZ range, and the outlook is not rosy. Atmospheric gases, water vapor, rain drops, foliage, and other attenuation and noise sources make these frequencies problematic for medium- to long-range, high speed comms.

Using 60 GHz is interesting because it's attenuation is so high it can be reused every 4 km.