Basis expansion model for channel estimation in LTE-R communication system 被引量：2

Basis expansion model for channel estimation in LTE-R communication system

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摘要 This paper investigates fast time-varying channel estimation in LTE-R communication systems. The Basis Expansion Model （BEM） is adopted to fit the fast time-varying channel in a high-speed railway com- munication scenario. The channel impulse response is modeled as the sum of basis functions multiplied by different coefficients. The optimal coefficients are obtained by theoretical analysis. Simulation results show that a Generalized Complex-Exponential BEM （GCE-BEM） outperforms a Complex-Exponential BEM （CE-BEM） and a polynomial BEM in terms of Mean Squared Error （MSE）. Besides, the MSE of the CE- BEM decreases gradually as the number of basis functions increases. The GCE-BEM has a satisfactory performance with the serious fading channel.

作者 Ling Deng Zhonghui Chen Yisheng Zhao

机构地区 College of Physics and Information Engineering

出处《Digital Communications and Networks》 SCIE 2016年第2期92-96,共5页 数字通信与网络（英文版）

关键词 Channel estimationBasis expansion modelLTE-R

分类号 TN929.53 [电子电信—通信与信息系统]

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