It is said that wireless is a half-duplex medium. "Dual-band" stations are now common, with one antenna in the 2.4 GHz band, and the other in the 5GHz band. Suppose now we have stations with both antennas in, say, the 5GHz band, but on different channels, would full-duplex communication be possible?
Wireless – Full-duplex with two antennas
wireless
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Best Answer
A while back I read several articles about researchers using signal inversion cancellation to achieve full-duplex wireless. With a quick google search I found the below links to similar articles to the ones I read back when.
TLDR; It's for sure possible...though I think they're using signal inversion cancellation instead of two channels (I.E. two different frequencies). People are working on it. Only a matter of time.
http://sing.stanford.edu/fullduplex/ http://www.computerworld.com/s/article/9219752/Rice_demonstrates_full_duplex_wireless_technology
I'd love to get a true RF engineers thoughts on this though. I'm by no means an RF guy.