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ABSTRACT
To support experimentation with full-duplex (FD) wireless, we recently integrated two FlexICoN Gen-2 wideband FD radios in the
open-access, city-scale NSF PAWR COSMOS testbed. Each integrated FD radio consists of an antenna, a customized Gen-2 RF
self-interference (SI) canceller box, a USRP software-defined radio, and a remotely accessible compute node. The RF SI canceller
box includes an RF canceller printed circuit board which emulates an integrated circuit implementation based on the technique
of frequency-domain equalization. The Gen-2 canceller box can
achieve up to 50 dB RF SI cancellation across 20 MHz bandwidth.
In this demo, we present the design and implementation of the
open-acccess, remotely accessible FD radios that are integrated in
the indoor COSMOS Sandbox 2 at Columbia University. We also
demonstrate example experiments that are available to researchers,
where demo participants can observe the visualized performance
of the open-access FD radios
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