State and Future Development of Cognitive Radio Networks
Huaqing Mao, Li Zhu, Dongsong Zheng · 2011
Rapid development of wireless communication technology makes our life convenient. However, it causes two issues: one is shortage of spectrum resources leads to the waste of allocated spectrum resources; the other is wireless communication standards are incompatible. Those two issues can be solved by cognitive radio networks. In this paper, current state of cognitive radio networks is discussed detailed and future network architecture is studied.