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:: Volume 5, Issue 1 (Vol.5, No.1 2019) ::
JNSEE 2019, 5(1): 4-21 Back to browse issues page
A New Blind Downlink Channel Estimation Method for Massive MIMO
Mahmoud Atashbar Dr * , Parisa Pasangi Ms2
Azarbaijan Shahid Madani University, Department of Electrical Engineering , Azarbaijan Shahid Madani University,, Tabriz, Iran , atashbar@azaruniv.ac.ir
2- Department of Electrical Engineering , Azarbaijan Shahid Madani University,, Tabriz, Iran
Abstract:   (415 Views)

Downlink channel estimation of Massive MIMO is an important challenge is 5G wireless communication.  A classic method for this purpose is training-based method which leads to decreasing in transmitted information rate. To cope with this problem, recently, a blind channel estimation method has been presented in which by assuming that the value of large scale fading coefficient is known, the channel gain is estimated in multiuser Massive MIMO system. In this paper, we propose a new method that simultaneously estimates both channel gain and large scale fading coefficient by applying two different power control gain in the coherence interval. The proposed method is applicable for ZF and MR precoding. The proposed method has higher transmitted information rate (does not need to transmit the large scale fading coefficient) and lower MSE in high SNR values with respect to reference method.

Keywords: Channel gain, Channel estimation, Massive Multiple Input Multiple Output.
Full-Text [PDF 1308 kb]   (150 Downloads)    
Type of Study: Research | Subject: Wireless Networks
Received: 2017/11/28 | Accepted: 2018/02/19 | Published: 2019/01/28
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Atashbar M, Pasangi P. A New Blind Downlink Channel Estimation Method for Massive MIMO . JNSEE. 2019; 5 (1) :4-21
URL: http://jnsee.sut.ac.ir/article-1-171-en.html


Volume 5, Issue 1 (Vol.5, No.1 2019) Back to browse issues page
سامانه های غیرخطی در مهندسی برق Journal of Nonlinear Systems in Electrical Engineering
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