ICI-Free Channel Estimation and Wireless Gesture Recognition Based on Cellular Signals

被引：0
|
作者：
Peng, Rui [1 ]
Tian, Yafei [1 ]
Han, Shengqian [1 ]
机构：
[1] Beihang Univ, Sch Elect & Informat Engn, Beijing 100191, Peoples R China
来源：
IEEE WIRELESS COMMUNICATIONS LETTERS | 2023年 / 12卷 / 12期
基金：
中国国家自然科学基金;
关键词：
Device-free wireless sensing; cellular signals; ICI; broadcast signals; gesture recognition;
D O I：
10.1109/LWC.2023.3307621
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
Device-free wireless sensing attracts enormous attentions since it senses the environment without additional devices. While cellular signals are good opportunistic radio sources, the influence of inter-cell interference (ICI) on wireless sensing has not been adequately addressed. In this letter, we first investigate the cause of ICI and its impact on wireless sensing. Then we propose an ICI-free channel estimation method by reconstructing the broadcast signals of adjacent cells and solving simultaneous equations. Wireless gesture recognition can be greatly benefited by ICI mitigation. Finally, we build a prototype system to receive the commercial 4G-LTE signals, and demonstrate the accuracies of wireless gesture recognition under various conditions.
引用
收藏
页码：2088 / 2092
页数：5
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