In this paper. we design a new collaboration interference (CI) transmission scheme for overlay cognitive full-duplex wireless wiretap networks. where a full-duplex secondary user utilizes the licensed spectrum to transmit the secondary information and uses the secondary signal as a special noise to help and protect the secure transmission of primary information in the presence of mult... https://www.ealisboa.com/great-deal-Pentair-Union-Collar-2-U11-200PS-super-offer/