Open Access
REVIEW
A Review of Device-Free Indoor Positioning for Home-Based Care of the Aged: Techniques and Technologies
1 College of Electronic and Information Engineering, Shandong University of Science and Technology, Qingdao, 266590, China
2 School of Computer Science and Technology, Henan Polytechnic University, Jiaozuo, 454000, China
* Corresponding Authors: Geng Chen. Email: ; Shuihua Wang. Email: