With the increase in user demand for internet access on move, spectrum resource seems to
deplete and leads to spectrum crunch. Recent researches reports that this spectrum crunch …

In this paper, we present a novel power allocation scheme for multicarrier cognitive radio
networks. The proposed scheme performs subchannel power allocation by incorporating …

Ensuring total rate maximization whilst keeping Greenhouse gas emission (GHGE) at a
minimum in green cooperative cognitive radio networks (GCCRNs) is key to achieving …

The underlay spectrum access is a very prominent technique in cognitive radio (CR)
communication systems in which the primary users (PUs) share the spectrum with the …

This letter investigates a desirable power allocation scheme for shared spectrum networks
and formulate it as a constrained optimization model that falls into the nonlinear class …

In this paper, we apply the innovative multi-objective optimization methods to the challenge
posed by rate maximization, total transmission power minimization and relay selection in …

The authors propose an optimal joint power control and multi‐band spectrum sensing
scheme for cognitive radio (CR) systems to increase the spectral efficiency and to overcome …