A Method To Increase Cognitive Function In LTE System And Simulation Analysis

Present using condition of wireless spectrum is that on the one hand the wireless spectrum is becoming more and more scarce with the increasingly developing new technologies and new services, with the rushing new mobile requirement and with the growing mobile user, but on the another hand some useful and profitable spectrum resource is always spare.Cognitive Radio, a new technology that recycling the spectrum resource which has been assigned to someone but sometimes is vacant, improves the spectrum utilization. Through the research on IEEE 1900.4 standard protocols and LTE protocols, a new method to increase cognitive function in LTE system is presented in this paper, which allows unauthorized users to make an access to the network under certain conditions without interfering with other users normal business transmission.The emphasis of this paper is to design a new method to increase cognitive function in LTE system and simulation analysis.Firstly, Modifying the system structure and joining the related cognitive entity. Then, this paper defines and modifies the new interface and the related protocol. Finally, a simulation software is designed, which makes a simulation of the system and its related communications process, and verifies related performance.