Hybrid Beamforming for Multi-User Millimeter-Wave Networks
Hybrid Beamforming for Multi-User Millimeter-Wave Networks
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DOI：
10.1109/tvt.2020.2966122
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发表时间：
2020-01
影响因子：
6.8
通讯作者：
A. Nasir;H. D. Tuan;T. Duong;H. V. Poor;L. Hanzo
中科院分区：
文献类型：
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作者：
A. Nasir;H. D. Tuan;T. Duong;H. V. Poor;L. Hanzo
本文通过将模拟波束形式与新的正规化强迫基带相结合，以进行多用户毫米波网络，以有限的射频（RF）链中进行了检查，该链的数量是单个网络中的ii twice tike，ii）数量是ii，ii）数量是ii）。最多是RF的两倍在第二个和第三个场景中，我们将用户分为两个类别的用户以及细胞边缘的用户，并在第三个情况下将它们分为两个不同的时间。最后，为了计算我们的仿真结果，开发了具有快速收敛的低复杂性路径遵循算法。
This paper considers hybrid beamforming by combining an analog beamformer with a new regularized zero forcing baseband one, for multi-user millimeter-wave networks under a limited number of radio frequency (RF) chains. Three popular scenarios are examined: i) the number of users is up to the number of RF chains in a single-cell network, ii) the number of users is up to twice the number of RF chains in a single-cell network, and iii) the number of users is up to twice the number of RF chains in each cell of a two-cell network. In the second and third scenarios, we group the users into two categories of cell-center users as well as cell-edge users and serve them in two different time fractions. In the third scenario, we propose to suppress the inter-cell interference by serving the cell-center and cell-edge users in alternate fractional-time slots. In all the three scenarios, we determine the optimal power allocation maximizing the users’ minimum rate. Finally, low-complexity path-following algorithms having rapid convergence are developed for the computation of the optimal power. Our simulation results show that the proposed algorithms achieve a clear performance gain over the existing benchmarkers.