(May 20, 2015) Radio systems, such as mobile phones and wireless internet
connections, have become an integral part of modern life. However, today’s
devices use twice as much of the radio spectrum as is necessary. New technology
is being developed that could fundamentally change radio design and could
increase data rates and network capacity, reduce power consumption, create
cheaper devices and enable global roaming.
A pioneering team of researchers from the University of
Bristol's Communication Systems and Networks research group, have developed a
new technique that can estimate and cancel out the interference from one’s own
transmission, allowing a radio device to transmit and receive on the same
channel at the same time. This therefore requires only one channel for two-way
communication, using half as much spectrum compared to the current technology.