In this chapter, we will provide a brief introduction to the database-assisted dynamic
spectrum sharing technology, including the network architecture, the regulatory and …

Databases have been considered in the context of spectrum sharing systems to collect
information on spectrum usage by primary users and to provide information on spectrum …

In this work, inefficient spectrum usage problem which will lead to spectrum scarcity in future
communications has been addressed. According to Federal Communications Commission …

As the services and requirements of next-generation wireless networks become increasingly
diversified, it is estimated that the current frequency bands of mobile network operators …

In this survey paper, we investigate some of the challenges to be addressed before a
practical real-time secondary market for spectrum can be developed. We differentiate the …

We consider the problem of spectrum sharing in wireless communication networks
composed of multiple source-destination pairs. We define a novel concept of information …

The future generation networks (5G) are expected to achieve high data rates, reduced
latency, increased spectral efficiency and energy efficiency of the system. Since the …

In spectrum sharing, a spatial separation region is defined around a primary user (PU)
where co-channel and/or adjacent channel secondary users (SUs) are not allowed to …

We study auction mechanisms for sharing spectrum among a group of users, subject to a
constraint on the interference temperature at a measurement point. The users access the …

It is increasingly difficult to satisfy growing demands for spectrum with the conventional
policy of fixed spectrum allocation. To overcome this problem, flexible/dynamic spectrum …