AnonTechie writes:
According to an article from The Register, a team from Stanford University has patented technology that could halve the bandwidth that a mobile provider needs.
Operating under the name Kumu Networks, they are showcasing tech which they claim would exactly double throughput. Radio equipment (such as mobile phones) would be able to send and receive on the same frequency through a process similar to noise-cancelling headphones; by knowing what a base station is transmitting it can cancel out the information from the very faint signal it receives.
(Score: 4, Informative) by xtronics on Thursday February 27 2014, @07:15PM
They always write the headlines as if information theory no longer applies. Yes, you can send and recieve on the same frequency - but at the cost of the noise floor.
There is no free lunch.
I worked on such a system in the 1980's where we sent and received on the same channel - electronically subtracting the one signal from the other.