Wen Congmin is a double-masters student in the Electronic and Information School of South China University of Technology (SCUT), and at University of Nantes. She is focusing on estimating the direction of arrivals for modulation signals. Since the second semester of master 2, she has been working in the laboratory of École Polytechnique as an intern under supervision of Jiazi YI (École Polytechnique). Her current research is to study the Low-Power Wide-Area Networks(LPWAN). Her research interests involves the Internet of Things, LPWAN, Lora, and Array Signal Processing.