期刊论文

Xu, Hongbo

英文

IEEE COMMUNICATIONS LETTERS

1089-7798

2018

22

10

2012-2015

10.1109/LCOMM.2018.2858221

Manuscript received April 16, 2018; revised June 3, 2018 and July 17, 2018; accepted July 17, 2018. Date of publication July 23, 2018; date of current version October 8, 2018. This work was supported by the Natural Science Foundation of Hubei Province under Grants 2017CFB591. The associate editor coordinating the review of this paper and approving it for publication was G. C. Alexandropoulos. (Corresponding author: HongboXu.) J. Wang is with the Department of Electronics and Information Engineering, CentralChina Normal University, Wuhan 430079, China, and also with the College of Information Engineering, Shenzhen University, Shenzhen 518060, China (e-mail: johnwangqc@gmail.com).

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In this letter, we investigate the beamforming design for millimeter-wave (mmWave) joint unicast and multicast (JUM) systems, in which the common and private signals are transmitted simultaneously. Due to the hardware limitation, the conventional fully digital beamforming methods are infeasible. We propose a suboptimal low-complexity hybrid zero-forcing (ZF) beamforming scheme for the mmWave JUM systems. The analog precoder and combiner are first optimized to maximize the effective channel gains. The ZF algorithm is then used to decide the unicast beamforming directions for cancelling the inte...