Joint relay–user beamforming design in a full-duplex two-way relay channel
Z Wen, S Wang, X Liu, J Zou - IEEE Transactions on Vehicular …, 2016 - ieeexplore.ieee.org
Z Wen, S Wang, X Liu, J Zou
IEEE Transactions on Vehicular Technology, 2016•ieeexplore.ieee.orgA full-duplex (FD) two-way relay channel (TWRC) with multiple antennas is considered. For
this three-node network, the beamforming design needs to suppress self-interference (SI).
While a traditional way is to apply zero forcing (ZF) for SI mitigation, it may harm the desired
signals. In this paper, a design that reserves a fraction of SI is proposed by solving a quality-
of-service (QoS) constrained beamforming design problem. Since the problem is
challenging due to the loop SI, a convergence-guaranteed alternating optimization (AO) …
this three-node network, the beamforming design needs to suppress self-interference (SI).
While a traditional way is to apply zero forcing (ZF) for SI mitigation, it may harm the desired
signals. In this paper, a design that reserves a fraction of SI is proposed by solving a quality-
of-service (QoS) constrained beamforming design problem. Since the problem is
challenging due to the loop SI, a convergence-guaranteed alternating optimization (AO) …
A full-duplex (FD) two-way relay channel (TWRC) with multiple antennas is considered. For this three-node network, the beamforming design needs to suppress self-interference (SI). While a traditional way is to apply zero forcing (ZF) for SI mitigation, it may harm the desired signals. In this paper, a design that reserves a fraction of SI is proposed by solving a quality-of-service (QoS) constrained beamforming design problem. Since the problem is challenging due to the loop SI, a convergence-guaranteed alternating optimization (AO) algorithm is proposed to jointly design the relay-user beamformers. Numerical results show that the proposed scheme outperforms ZF method and achieves a transmit power value close to the ideal case.
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