Channel States Information Based Energy Detection Algorithm in Dual Satellite Systems

Abstract

Satellite communication which is a crucial part in wireless communication field faces the spectrum scarcity problem. Therefore, exploring a suitable spectrum sharing mechanism has become a key issue in ensuring the full utilization of satellite users while improving the spectrum utilization of existing spectrum. Cognitive communication is an emerging solution to solving spectrum problems in wireless systems. An important part of cognitive radio is spectrum awareness, which is used for acquiring information about the spectral opportunities. One of the spectrum sensing methods is spectrum sensing, which utilizes spectrum holes in multiple fields to sense the presence or absence of primary users by using signal processing techniques. This paper studies some cognitive scenarios and systems for satellite communication, and then proposes a spectrum sensing algorithm based on the channel states information to solve the problem of large transmission loss in satellite cognitive scenarios.