A Spectrum Allocation System Model of Internet of Things Based on Cognitive Radio

Aiming at the growing demand for spectrum space issues of Internet of Things, a spectrum allocation system model is structured based on the Homo Egualis(HE) social model. The model solves the problem of spectrum requirements for Internet of things, reutilizes idle spectrum and improves spectrum utilization by cognitive radio technologies, In model, the access point calculations and updates node access probability with the Homo Egualis community access schemes periodically. Because node control access time and frequency based on the access automatically, we can use idle spectrum fairly and efficiently. The results of the simulation show that the mode improves the spectrum utilization greatly.