Study on Spectrum Sensing Technology of Cognitive Radio System
Zhanqi Dong · Radio Engineering · 2013
For cognitive radio system,spectrum sensing is the basis and premise.The paper takes the study of the spectrum sensing as the subject.Starting with the study of the key technology of the spectrum sensing,the paper,based on consulting and analyzing the current research results in spectrum sensing,analyzes the local spectrum sensing technology,the consulting use of the prior information about the primary user,spectrum sensing forecasting and the use of the primary network information.And at the same time,the paper gives a summary analysis on the solving of the key point of the spectrum sensing problem.Then,with consideration of the common operation and the system use,the paper makes some discussions on the important research directions needed for cognitive radio spectrum sensing in the future.