A statistical sensing method by utilizing Wi-Fi CSI subcarriers:Empirical study and performance enhancement  

作　　者：Tao Deng Bowen Zheng Rui Du Fan Liu Tony Xiao Han 

机构地区：[1]Wireless Technology Laboratory,Huawei Techologies Co.,Ltd.,Shenzhen 518000,China [2]School of System Design and Intelligent Manufacturing(SDIM),Southern University of Science and Technology,Shenzhen 518000,China

出　　处：《Journal of Information and Intelligence》2024年第4期365-374,共10页信息与智能学报（英文）

基　　金：supported by Technological Innovation(“Climbing Program”Special Funds,pdjh2024c11603).

摘　　要：In modern Wi-Fi systems,channel state information(CSI)serves as a foundational support for various sensing applications.Currently,existing CSI-based techniques exhibit limitations in terms of environmental adaptability.As such,optimizing the utilization of subcarrier CSI stands as a critical avenue for enhancing sensing performance.Within the OFDM communication framework,this work derives sensing outcomes for both detection and estimation by harnessing the CSI from every individual measured subcarrier,subsequently consolidating these outcomes.When contrasted against results derived from CSI based on specific extraction protocols or those obtained through weighted summation,the methodology introduced in this study offers substantial improvements in CSI-based detection and estimation performance.This approach not only underscores the significance but also serves as a robust exemplar for the comprehensive application of CSI.

关 键 词：CSI SUBCARRIER Wi-Fi sensing 

分 类 号：TN91[电子电信—通信与信息系统]