A basic precept of wireless communications is that radios cannot transmit and receive at the same time on the same frequency. This long-held assumption has informed several aspects of wireless: from radio design, to PHY, MAC and network layer designs for all kinds of wireless networks. In this talk, I will describe our research on invalidating this fundamental assumption. Specifically, I will describe the evolution of our research on self-interference cancellation over the last three years which has now shown that realizing in-band full duplex radios is possible and practical, and discuss the impact this is beginning to have on future wireless network architectures. I will also highlight the cross-disciplinary nature of the research spanning RF, DSP, PHY and MAC, and discuss both the challenges and opportunities in attacking problems that span several disciplines.
['Sachin Katti']
Full duplex radios: from impossibility to practice