Demo abstract: Open-access full-duplex wireless in the ORBIT testbed

In order to support experimentation with full-duplex (FD) wireless, we integrated an open-access FD transceiver with the ORBIT testbed. In particular, an ORBIT node with a National Instruments (NI)/Ettus Research Universal Software Radio Peripheral (USRP) N210 software-defined radio (SDR) was equipped with the Columbia FlexICoN Gen-1 customized RF self-interference (SI) canceller box. The RF canceller box includes an RF SI canceller that emulates an RFIC canceller, which is implemented using discrete components. It achieves 40 dB RF SI cancellation across 5 MHz bandwidth. This demonstration presents the design and implementation of the open-access FD transceiver and the baseline program, as well as an example of a remote FD experiment where 85 dB overall SI cancellation is achieved across both the RF and digital domains.