Best Readings in Full Duplex Wireless Communications
While conventional half-duplex wireless systems rely on transmitting and receiving in non-overlapping time slots or frequency channels, full duplex (FD) communications and the underlying self-interference cancellation (SIC) techniques may improve the attainable spectral efficiency while reducing latency. This is made possible by recent advances in antenna design and signal processing techniques specifically in multiple input multiple output systems, which make SIC of 80-110 dB possible. In fact, SIC has been demonstrated in applications requiring even more than 110 dB of interference cancellation. We expect that in the future, SIC technologies will enable not only FD communications, but also a variety of spectrum-sharing applications by creating radio technologies that are tolerant of adjacent and co-channel interference.