Full-Duplex mmWave Communications With Robust Hybrid Beamforming

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Abstract
In this paper, we utilize the full-duplex mode to further improve the rate of millimeter wave communications. Correlated channel estimation errors are considered to develop a robust hybrid beamforming scheme. A zero-space projection based method is proposed to compress the self-interference. Then, analog parts of the transceiver are designed to maximize the gains of RF-to-RF effective channels. Finally, digital parts of the transceiver are solved iteratively by utilizing the equivalence between the maximization of mutual information and the minimization of weighted minimum mean squared error. The simulation results show that the proposed scheme prevails other existing designs.
Funding Information
  • National Natural Science Foundation of China (61801066)
  • Venture and Innovation Support Program for Chongqing Overseas Returnees (cx2020070)

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