I should defer to the experts here: https://ieeexplore.ieee.org/document/8070024 https://ieeexplore.ieee.org/document/8070024 The part I'm working on currently

I should defer to the experts here: https://ieeexplore.ieee.org/document/8070024 https://ieeexplore.ieee.org/document/8070024 The part I'm working on currently is a privacy-aware implementation of recording useful signal strength from user's phones, that could be used for this.