With wireless resource virtualization, multiple Mobile Virtual Network Operators (MVNOs)
can be supported over a shared physical wireless network and traffic loads in a Base Station …

This paper combines two emerging research areas: green communications and cognitive
radio. A green cognitive radio network must be accountable for its energy expenditure …

This paper aims at maximizing the sum rate of secondary users (SUs) in Orthogonal
Frequency Division Multiplexing (OFDM)-based Heterogeneous Cognitive Radio (CR) …

This article studies a green-energy-powered cognitive radio network (GCRN) in an underlay
paradigm, wherein multiple battery-free secondary users (SUs) capture both the spectrum …

In this paper, we present a novel, fast algorithm for allocating the transmit power to the
secondary users (SUs) to maximize the total SU throughput in a cognitive radio network …

Quick development of wireless communication makes the spectrum scarcity as a one of the
serious problems. Cognitive radio (CR) is considered to be one of the possible solutions to …

The emerging network virtualization technique is considered as a promising technology that
enables the deployment of multiple virtual networks over a single physical network. These …

In this paper, we investigate resource allocation for underlay cognitive radio (CR) networks,
where the CR users coexist but do not cause unacceptable interference with licensed users …

This paper proposes two energy-aware algorithms exploited for optimal resources
administration and maximum energy conservation of secondary communication nodes in a …

Virtualized wireless networks is one of the techniques to satisfy the increasing demand of
mobile data services and for future wireless network. Nework virtualization enables efficient …