Array Redundancy and Diversity for Wireless Transmissions with Low Probability of Interception. - Xiaohua Li; Juite Hwu; E. Paul Ratazzi (ICASSP (4), 2006)

Using Antenna Array Redundancy and Channel Diversity for Secure Wireless Transmissions. - Xiaohua Li; Juite Hwu; E. Paul Ratazzi (J. Commun., 2007)

Sum transmission power of multiple cooperative secondary transmitters in dynamic spectrum access networks. - Juite Hwu; Jinying Chen; Xiaohua Li (CISS, 2008)

A frequency hopping spread spectrum transmission scheme for uncoordinated cognitive radios. - Xiaohua Li; Juite Hwu (ICASSP, 2009)