Mr. Fei Wu Profile

Fei Wu

at Univ of Electronic Science and Technology of China

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Proceedings Article | 7 October 2016 Paper

Near-field self-interference cancellation and quality of service multicast beamforming in full-duplex

Fei Wu, Shihai Shao, Youxi Tang

Proceedings Volume 9902, 99020H (2016) https://doi.org/10.1117/12.2262058

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To enable simultaneous multicast downlink transmit and receive operations on the same frequency band, also known as full-duplex links between an access point and mobile users. The problem of minimizing the total power of multicast transmit beamforming is considered from the viewpoint of ensuring the suppression amount of near-field line-of-sight self-interference and guaranteeing prescribed minimum signal-to-interference-plus-noise-ratio (SINR) at each receiver of the multicast groups. Based on earlier results for multicast groups beamforming, the joint problem is easily shown to be NP-hard. A semidefinite relaxation (SDR) technique with linear program power adjust method is proposed to solve the NP-hard problem. Simulation shows that the proposed method is feasible even when the local receive antenna in nearfield and the mobile user in far-filed are in the same direction.

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