Development of Radio Environment Map Enabled Case- and Knowledge-Based Learning Algorithms for IEEE 802.22 WRAN Cognitive Engines. - Youping Zhao; Joseph D. Gaeddert; Lizdabel Morales-Tirado; Kyung Kyoon Bae; Jung-Sun Um; Jeffrey H. Reed (CrownCom, 2007)

Development of a case-based reasoning cognitive engine for IEEE 802.22 WRAN applications. - An He; Joseph D. Gaeddert; Kyung Kyoon Bae; Timothy R. Newman; Jeffrey H. Reed; Lizdabel Morales-Tirado; Chang-Hyun Park (ACM SIGMOBILE Mob. Comput. Commun. Rev., 2009)

A Survey of Artificial Intelligence for Cognitive Radios. - An He; Kyung Kyoon Bae; Timothy R. Newman; Joseph D. Gaeddert; Kyouwoong Kim; Rekha Menon; Lizdabel Morales-Tirado; James Jody Neel; Youping Zhao; Jeffrey H. Reed; William H. Tranter (IEEE Trans. Veh. Technol., 2010)

Cognitive radio technology: Principles and practice. - Youping Zhao; Lizdabel Morales-Tirado (ICNC, 2012)

Cognitive Radio: Forging ahead from Concept, Testbed to Large-Scale Deployment. - Youping Zhao; Lizdabel Morales-Tirado (J. Commun., 2012)