Geometry-Based Multi-Link Channel Modeling for High-Speed Train Communication Networks
Geometry-Based Multi-Link Channel Modeling for High-Speed Train Communication Networks
复制标题
高速列车通信网络基于几何的多链路信道建模
DOI:
10.1109/tits.2019.2905036
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发表时间:
2020-03
影响因子:
8.5
通讯作者:
Liu Liu
中科院分区:
文献类型:
--
作者:
Zhou Tao;Tao Cheng;Salous Sana;Liu Liu
The performance of distributed communication systems is commonly subject to the cross-correlation characteristics of multi-link channels. In this paper, we concentrate on the modeling of multi-link small-scale fading (SSF) channels in high-speed train (HST) communication networks with distributed base stations according to the classical geometry-based stochastic model (GBSM). To appropriately describe a multi-link propagation scenario in the HST communication network, a novel geometrical model considering a line-of-sight component, a single-bounced one-ring model, and a double-bounced ellipse-ring model is proposed. Based on the proposed GBSM, the expression of multi-link channel impulse responses (CIRs) is obtained, and multi-link cross-correlation functions are derived and used for numerical analysis. In addition, realistic channel measurements are conducted in the existing HST long-term evolution (LTE) networks and multi-link CIRs are acquired using a time delay window-based partitioning scheme. Finally, the SSF cross-correlation coefficient is extracted by the multi-link channel data and is used to validate the utility of the proposed model.
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影响因子:
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DOI:
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2009 3rd European Conference on Antennas and Propagation
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