The demand for frequency is continuously increasing owing to the growth of wireless
communication devices and the development of network technology. To share frequency …

This letter considers the decision-making method of dynamic spectrum allocation by a
spectrum manager in a centralized white space cognitive radio communication network with …

In this paper, we consider a centralized dynamic spectrum sharing system, in which dynamic
spectrum allocation is accomplished in spectrum database. We consider a more realistic …

In this paper, we considered a 5G network in which the requests from users arrive in a
sequential manner. A centralized spectrum manager (SM) is responsible for assigning the …

White-space spectrum has temporal and spatial variations, and fragmentation, making the
spectrum assignment for devices in this space challenging. In this paper, we propose an …