Research of Cooperation Spectrum Sensing Based on Covariance Absolute Value

Spectrum detection is a key issue of cognitive radio system. The strength of the spectrum testing ability directly determine the cognitive radio system can whether or not effectively work. Based on it, this topic is about spectrum´s detection technology research. This paper introduce matrix theory that have been widely applied in wireless communication to multi-users environment and combine covariance absolute value method with cooperation sharing technology, put forward a cooperation spectrum sensing base on covariance absolute value.