Cognitive Radio and Aviation Communication Spectrum Management

With the development of the modern aviation and the communication technology employed in aviation, it is concerned that the aviation communication system is interfered by the inner and outside interference. Because of the electromagnetic spectrum is limited and it should be share, it must be controlled and managed in order to use in aviation communication. The cognitive radio can perceive the electromagnetic environment automatically, search the spectrum cavity, and adjust the signal parameters of both sides through communication protocol and algorithm to best situation. This paper discusses the cognitive radio technical and the application in the spectrum management of aviation communications.