Self-Interference Aware Codebook Design for Full-Duplex Joint Sensing and Communication Systems at Mmwave

Murat Bayraktar, Cristian Rusu, Nuria González-Prelcic, Hao Chen

Abstract: This paper proposes an analog beam codebook for full-duplex joint sensing and communication (JSAC) systems at millimeter wave (mmWave) bands. The codebook design is formulated as the minimization of the self-interference (SI) caused by full-duplex operation, while also considering constraints associated to the beam gains and the implementation based on phase shifters. It is shown that the proposed codebook is suitable for joint initial access and target detection in mmWave communication systems that leverage a full-duplex circuit. The simulation results reveal that the proposed design outperforms the benchmarks in terms of communication and sensing metrics, while operating with a practical analog beamformer.