Simulation of MIMO channel for wireless avionics intra-communications

被引：0
|
作者：
Zhuo Y. [1 ]
Li Q. [1 ]
Lu G. [1 ]
Wu J. [1 ]
机构：
[1] School of Electronics and Information Engineering, Beihang University, Beijing
来源：
Hangkong Xuebao/Acta Aeronautica et Astronautica Sinica | 2024年 / 45卷 / 08期
基金：
中国国家自然科学基金;
关键词：
avionics com⁃ partment; channel simulation; Multiple-Input Multiple-Output (MIMO); Wireless Avionics Intra-Communications (WAIC); Wireless Local Area Network (WLAN);
D O I：
10.7527/S1000-6893.2023.28969
中图分类号：
学科分类号：
摘要：
Wideband intra-connection for Wireless Avionics Intra-Communications（WAIC）can be achieved by using multi-antenna Wireless Local Area Networks（WLAN）. In the avionics cabin，the reflection of signals between the cabin structure and avionics equipment racks is the main factor causing multipath fading. Moreover，the correlation be⁃ tween received signals from different antennas generally cannot be disregarded when Multiple-Input Multiple-Output （MIMO）transmission is performed. In this paper，a three-dimensional model is established according to the arrange⁃ ment geometric relationship and material properties of the avionics equipment racks and equipment. The signal propa⁃ gation path in the avionics cabin is simulated using the reflection angle error method of the receiving sphere. For differ⁃ ent avionics equipment installation density，simulations are performed considering the reception scenarios of uniform linear and circular antenna signals separately. Cluster-based data preprocessing is used to derive the multi-cluster mul⁃ tipath channel model，as well as the WAIC channel characteristics of the avionics cabin described by multipath fading and time delay distribution. The MIMO channel transmission matrix and the impact of inter-receiver antenna correlation on channel performance are obtained through statistical analysis. The simulation analysis shows that the channel con⁃ ditions can be approximated using fully loaded channel parameters when the installation density of avionics equipment is greater than 60%. The simulation analysis method proposedcan provide a reference for the analysis and design of MIMO wireless transmission characteristics near avionics equipment racks. © 2024 Chinese Society of Astronautics. All rights reserved.
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