In-Band Full-Duplex Radar-Communication System

In-band full-duplex (IBFD) technology is a promising solution to boost the throughput of wireless networks. To bring IBFD reality, modem has cancel self-interference (SI) signal, which includes strong direct Tx leakage signal and weaker reflected from surroundings. Adaptive analog digital SI cancelation schemes have been proposed. It becomes then interesting understand, although, how echoed could be exploited for enabling radar functionality while reusing waveform already-existing hardware. This article formulates monostatic system model starting communication model. Beside simulation-based assessment, performance also evaluated by an prototype, consists both canceller modules, >85 dB Tx-Rx isolation. The enhanced with Doppler functionality, as much possible existing functional blocks. experimental result shows accuracy proposed measure velocity mobile objects at various speeds between 0.2 1 m/s device simultaneously served node perform in-band bidirectional communication. ability suits broad spectrum opportunistic remote sensing applications, such body hand gesture detection.