Multi-Channel Opportunistic Access Based on Primary ARQ Messages Overhearing. - Fabio E. Lapiccirella; Keqin Liu; Zhi Ding 001 (ICC, 2011)

Improved spectrum access control of cognitive radios based on primary ARQ signals. - Fabio E. Lapiccirella; Zhi Ding 001; Xin Liu 002 (IET Commun., 2012)

Distributed Control of Multiple Cognitive Radio Overlay for Primary Queue Stability. - Fabio E. Lapiccirella; Xin Liu 002; Zhi Ding 001 (IEEE Trans. Wirel. Commun., 2013)