Hybrid MIMO-OFDM for downlink multi-user communications over millimeter channels with no instantaneous feedback

Po Hsuan Lee, Yuan-Pei Lin

研究成果: Conference contribution同行評審

1 引文 斯高帕斯(Scopus)

摘要

In this paper, we consider hybrid precoding for multiuser MIMO-OFDM systems in downlink communications with no instantaneous channel information. In a hybrid MIMO-OFDM, precoding consists of two parts: a RF (Radio Frequency) precoder that is subcarrier independent and subcarrier precoders that are subcarrier dependent. We design the precoders of both parts based on the statistics of the user channels, which requires infrequent feedback. To address interference among the users, the signals of different users are transmitted using spatially orthogonal beams. Due to the sparse nature of mmWave channels, the use of orthogonal beams leads to spatial separation among the users and effective prevention of interference. Simulations are given to show that the performance of the proposed statistical hybrid precoding system is close to that of a hybrid system that enjoys full-CSI (Channel State Information).

原文American English
主出版物標題2019 IEEE International Symposium on Circuits and Systems, ISCAS 2019 - Proceedings
發行者Institute of Electrical and Electronics Engineers Inc.
ISBN(電子)9781728103976
DOIs
出版狀態Published - 1 1月 2019
事件2019 IEEE International Symposium on Circuits and Systems, ISCAS 2019 - Sapporo, Japan
持續時間: 26 5月 201929 5月 2019

出版系列

名字Proceedings - IEEE International Symposium on Circuits and Systems
2019-May
ISSN(列印)0271-4310

Conference

Conference2019 IEEE International Symposium on Circuits and Systems, ISCAS 2019
國家/地區Japan
城市Sapporo
期間26/05/1929/05/19

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