Conference PaperExperimentation with full-duplex wireless in the COSMOS testbedChen, T.; Welles, J.; Kohli, M.; Baraani Dastjerdi, M.; Kolodziejski, J.; Sherman, M.; Seskar, I.; Krishnaswamy, H.; Zussman, G.In order to support experimentation with full-duplex (FD) wireless, we integrated the FlexICoN Gen-2 wideband FD radio with the city-scale PAWR COSMOS testbed [1]. In particular, the implemented FD radio consists of an antenna, a customized Gen-2 RF self-interference (SI) canceller box, a USRP software-defined radio (SDR), and a compute node. The RF canceller box includes an RF SI canceller implemented using discrete components on a printed circuit board (PCB), which emulates its RFIC canceller counterpart. The Gen-2 RF SI canceller achieves 50 dB RF SI cancellation across 20 MHz bandwidth using the technique of frequency-domain equalization (FDE) [2]. In this abstract, we present the design and implementation of the remotely accessible Gen-2 wideband FD radio integrated with the COSMOS sandbox at Columbia University. We also present an example real-time wideband FD wireless link demonstration using the GNU Radio software.2019-01-0110134985IEEE ICNP’19 Workshop Midscale Education and Research Infrastructure and Tools (MERIT), 2019https://doi.org/1650669National Science Foundation