LTE-Advanced Downlink Channel Estimation under Minimum Resource Allocation with DM-RS

Yi Hsiang Lin, David W. Lin

研究成果: Conference contribution同行評審

1 引文 斯高帕斯(Scopus)

摘要

The LTE-Advanced defines a way of downlink mult- input multi-output (MIMO) transmission that supports non-codebook-based precoding with minimum resource allocation consisting of two temporally consecutive physical resource blocks (PRBs). The required channel estimation is facilitated by the specifically provided ''demodulation reference signal'' (DM-RS). However, such channel estimation is challenging in doubly (time and frequency) selective fading channels under minimum resource allocation due to the fewness of DM-RS subcarriers. We propose a decision-directed channel estimation method that addresses the issue. It conducts a sequence of decision-aided averaging of various tentative channel estimates in both the frequency and time domains to arrive at the resulting channel estimate. The method has relatvely low complexity. Simulation results on multipath fading channels demonstrate the performance of the proposed channel estimation method.

原文English
主出版物標題2018 IEEE 87th Vehicular Technology Conference, VTC Spring 2018 - Proceedings
發行者Institute of Electrical and Electronics Engineers Inc.
頁面1-5
頁數5
ISBN(電子)9781538663554
DOIs
出版狀態Published - 20 七月 2018
事件87th IEEE Vehicular Technology Conference, VTC Spring 2018 - Porto, Portugal
持續時間: 3 六月 20186 六月 2018

出版系列

名字IEEE Vehicular Technology Conference
2018-June
ISSN(列印)1550-2252

Conference

Conference87th IEEE Vehicular Technology Conference, VTC Spring 2018
國家Portugal
城市Porto
期間3/06/186/06/18

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