Research on velocity estimation of narrow-band mobile communication channels

被引：0

作者：

Zhang, Hao ^{[1
]}

Liu, Yong ^{[1
]}

Gao, Junxiang ^{[2
]}

机构：

[1] School of Information and Communication Engineering, Beijing University of Posts and Telecommunications, Beijing, 100876, China

[2] College of Science, Huazhong Agricultural University, Wuhan, 430070, China

来源：

Journal of Computational Information Systems | 2010年 / 6卷 / 03期

关键词：

Fading channels - Estimation - Mobile telecommunication systems;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

A new mobile station velocity estimator is presented based on the normalized auto-covariance of the Rician fading signal and that of the squared envelope respectively of the received signal. Focusing on how auto-covariance or squared envelope function of received signal and their derivatives vary as the corresponding parameters change, we find such a truth that estimation from auto-covariance function of received signal is more accurate than that from squared envelope when LOS component is not strong (K is small), and the conclusion is contrary if K is large. Based on the truth we propose a novel velocity estimation method. Compared to previous approaches, the proposed algorithm is shown to have better performance and is robust in a microcellular/macro cellular propagation environment, which can be characterized by no isotropic scattering and/or a specular component of unknown strength. Copyright © 2010 Binary Information Press May, 2010.

引用

页码：821 / 829

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