Improved Hybrid-Beamforming Design for Full-Duplex mmWave Point-to-Point Communication

Full-duplex (FD) technology holds the potential for twice the spectral efficiency compared to half-duplex (HD) communication. However, simultaneous transmission and reception in the same frequency band may be subject to severe self-interference (SI). Therefore, mitigating the impact of SI becomes a key issue in realizing FD wireless communications. In this paper, we propose a hybrid beamforming design that effectively suppresses SI while maintaining superior communication quality for FD millimeter wave (mmWave) communication systems. Simulation results demonstrate that the designed hybrid transceivers exhibit exceptional resistance to the SI, leading to a significant improvement in spectral efficiency compared to conventional HD communications.