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Wiener Filter for Basis Expansion Model Based Channel Estimation

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3 Author(s)
Ke Zhong ; Nat. Key Lab. of Sci. & Technol. on Commun., Univ. of Electron. Sci. & Technol. of China, Chengdu, China ; Xia Lei ; Shaoqian Li

This paper combines basis expansion model (BEM) based channel estimation with Wiener filter to deal with channel estimation in various mobile environments, especially in high-speed cases. The expression of Wiener filter for BEM based channel estimation (WF-BEM) is derived and the result explicitly considers the effect of intercarrier interference (ICI). The simulation results show that WF-BEM is better than Wiener filter for least squares (LS) based channel estimation in time-varying channels.

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Communications Letters, IEEE  (Volume:15 ,  Issue: 8 )