Adaptation from Transmission Security (TRANSEC) to Cognitive Radio Communication

Communication systems have to be made secure against unauthorized interception or against disruption or corruption in complicated electromagnetic environments. There are mainly three security categories used to delineate wireless communication systems generally, such as shown in Fig. 1, i.e., INFOSEC, COMSEC, and TRANSEC. We state about information security (INFOSEC) as that trying to against unauthorized access to or modification of information; we describe the communications security (COMSEC) as that keeping important communications secure. And we describe transmission security (TRANSEC) as that making it difficult for someone to intercept or interfere with communications without prior accurate waveforms, modulation schemes, and coding (Nicholson, 1987).