Multi-user schemes using nonlinear time-varying modulation. - Srinivasa Machineni; Hao Shen 014; Antonia Papandreou-Suppappola (ICASSP (4), 2004)

Time-varying multichirp rate modulation for multiple access systems. - Hao Shen 014; Srinivasa Machineni; Charu Gupta; Antonia Papandreou-Suppappola (IEEE Signal Process. Lett., 2004)

Channel estimation using time-frequency techniques. - Hao Shen 014; Antonia Papandreou-Suppappola (ICASSP (4), 2005)

Wideband time-varying interference suppression using matched signal transforms. - Hao Shen 014; Antonia Papandreou-Suppappola (IEEE Trans. Signal Process., 2005)

Diversity and channel estimation using time-varying signals and time-frequency techniques. - Hao Shen 014; Antonia Papandreou-Suppappola (IEEE Trans. Signal Process., 2006)