Researchers develop duplex wireless

Rice University researchers has come across another breakthrough that could double the capacity of wireless signals.

The "full-duplex wireless technology" allows a wireless device, such as a phone or tablet, to upload and download data on a single frequency as opposed the two required today. The idea is that if a device could simultaneously receive and send data on the same frequency, it would free up more wireless bands without ever needing to build more antennas. However, if a device tried to "talk" and "listen" on the same frequency on a network today, the transmissions would cancel each other out in the same way that shouting over someone on speakerphone would. The team of Rice researchers achieved a dual-signal band by employing multiple-input multiple-output antenna technology. The receiving antenna is able to catch multiple signals in a way that do cancel each other out, but the node can pick up a clear signal in a single frequency.