no code implementations • 9 Jan 2024 • Jianyang Shi, BoWen Zhang, Amartansh Dubey, Ross Murch, Liwen Jing
This is the first research work to consider WiFi indoor imaging as a multi-modal image generation task that converts the measured WiFi power into a high-resolution indoor image.
no code implementations • 18 Oct 2022 • Wenjing Liu, Shanpu Shen, Danny H. K. Tsang, Ranjan K. Mallik, Ross Murch
Different from original ratio detectors that use the magnitude ratio of the signals between two Reader antennas, in our proposed approach, we utilize the complex ratio so that phase information is preserved and propose an accurate linear channel model approximation.
no code implementations • 15 Jul 2022 • Samruddhi Deshmukh, Amartansh Dubey, Ross Murch
Such inverse problems can be highly non-linear and ill-posed under extremely strong scattering conditions such as when the objects have very high permittivity or are large in size.
no code implementations • 25 May 2022 • Zixiang Han, Shanpu Shen, Yujie Zhang, Shiwen Tang, Chi-Yuk Chiu, Ross Murch
Simulation results of the channel capacity bounds achieved using our MIMO antenna design with one square wavelength size are provided.
no code implementations • 4 Nov 2021 • Samruddhi Deshmukh, Amartansh Dubey, Dingfei Ma, Qifeng Chen, Ross Murch
Thus, our proposed method is the first inverse scattering-based deep learning framework which can image large scatterers with high permittivity and achieve accurate indoor RF imaging using phaseless Wi-Fi measurements.
no code implementations • 23 Nov 2020 • Shanpu Shen, Bruno Clerckx, Ross Murch
Compared with the single connected reconfigurable impedance network, our group and fully connected reconfigurable impedance network can increase the received signal power by up to 62%, or maintain the same received signal power with a number of RIS elements reduced by up to 21%.
no code implementations • 14 Sep 2020 • Wenjing Liu, Shanpu Shen, Danny H. K. Tsang, Ross Murch
To overcome this challenge, we propose the use of orthogonal space-time block codes (OSTBC) by incorporating multiple antennas at the Tag as well as at the Reader.