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DOI码：10.1109/LCOMM.2017.2782322
发表刊物：IEEE Communications Letters
摘要：Hybrid precoding is widely used in millimeter wave massive multiple-input multiple-output system to reduce the hardware complexity. Previous works have shown that hybrid precoding by using angular information can acquire good performance. However, in practice, perfect angular information is hard to be obtained. In this work, a robust analog beamforming method based on chirp sequence is proposed to deal with the inaccurate angle estimations. Our method can adjust the beamwidth arbitrarily, and the optimal beamwidth is derived according to the SNR and angle estimation error variance. Simulation results show that the method can dramatically improve user fairness and cell-edge user rates.
论文类型：期刊论文
一级学科：信息与通信工程
文献类型：期刊
卷号：22
期号：3
页面范围：638-641
是否译文：否
发表时间：2018-03-01
发布期刊链接：https://ieeexplore.ieee.org/document/8186193