Multiple Shrinkage Factors (MSF) Based MC MU-MIMO Channel Estimation algorithm
Konferenz: ISWCS 2013 - The Tenth International Symposium on Wireless Communication Systems
27.08.2013 - 30.08.2013 in Ilmenau, Deutschland
Tagungsband: ISWCS 2013
Seiten: 4Sprache: EnglischTyp: PDF
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Autoren:
Li, Sheng; Wang, Rui; He, Xiongxiong; Li, Gang; Zhang, Duan (Zhejiang Key Laboratory for Signal Processing, College of Information Engineering, Zhejiang University of Technology, Hangzhou 310023, Zhejiang, P.R. China)
Inhalt:
In this work, a channel estimation algorithm is proposed for multi-carrier (MC) multi-user multiple input and multiple output (MU-MIMO) systems. The conventional least squares (LS) algorithm is considered and a new algorithm that employs a number of shrinkage factors to improve the mean square error (MSE) performance of the LS approach is then proposed. With an additional complexity that is linearly proportional to the size of the channel matrix, the proposed algorithm leads to a much smaller MSE than the LS approach and some existing MIMO channel estimation algorithms. Simulations are carried out with the IEEE 802.11ac standard channel model for MC MU-MIMO systems.