In advanced radio communication systems, most of the radio spectrum remains
underutilized. To fully utilize the radio spectrum, an efficient allocation of the scarce and …

With the rapid advancements in wireless communication, the problem of scarce radio
resources and the low spectral efficiency caused by the stationary spectrum sharing …

This paper deals with a power allocation optimization problem in a Cognitive Radio (CR)
system composed of opportunistic unlicensed users called secondary users (SUs) and …

With the development of wireless communication technology, the need for bandwidth is
increasing continuously, and the growing need makes wireless spectrum resources more …

Recently, cognitive radio technology has gained worldwide attention due to its potential to
overcome spectrum scarcity. The technology allows unlicensed users to use licensed …

Cognitive radio network (CRN) is considered a plausible way out for future 5G applications
through its dynamic spectrum access technology. Spectrum sharing being the main …

In the existing scenario, the radio spectrum is allocated and divided between unlicensed
and licensed frequencies. Due to this policy, some portions of the spectrum remain unused …

The recent advances in wireless communication have led to the problem of growing
spectrum scarcity. The problem of spectrum allocation is due to advance research in …

The ideal utilization of radio spectra is a major issue of concern in the field of wireless
communication. Increasing demand for wireless radio services has led to the issue of …

Cognitive Radio Network (CRN) has been emerged as a hopeful solution to utilize a
statically allocated spectrum in an optimistic manner with dynamic spectrum access. At …