Qasim Chaudhari writes about wireless communications and signal processing at https://wirelesspi.com. After obtaining a PhD in Electrical Engineering from Texas A&M University, he has mostly worked on DSP algorithms development for real world demonstrations of wireless systems such as a MIMO-OFDM testbed, low-SNR receiver and phase of arrival based localization. His current venture is experimentation on extracting the range of a wireless device from the communication signal for some particular modulation schemes.