Improvement in Total Sensing Time of the Receiver in the Cognitive Radio

摘要

This paper is emphasized on the total sensing time of the dedicated sensing receiver (DSR) of the cognitive radio (CR) network. To minimize the total sensing tine that is the time taken by the receiver to sense the spectrum, a potential modification has been made in the basic cognitive radio receiver architecture. The cognitive radio is a novel communication network, which is useful in utilizing the licensed spectrum by the unlicensed users when it is not being used by the licensed users. In order to reduce the sensing time of DSR, we have increased the number of antennas being used for DSR in the cognitive radio. The range of frequencies being utilized is increased to a large extent for various potential applications.