With growing concern about environmental issues and an emerging green communications
paradigm, cognitive radio (CR) networks (CRNs) have to be considered from the energy …

In a cognitive (secondary) multiple-access network which is subject to interference power
constraints imposed by a primary system, it is desirable to mitigate the interference on the …

Cognitive radio has received great attention recently for its ability to improve spectrum
efficiency by letting secondary users to access spectrum resource that is unoccupied by …

Cellular networks are faced with serious congestions nowadays due to the recent booming
growth and popularity of wireless devices and applications. Opportunistically accessing the …

In this paper, we investigate a joint scheduling and power control for an infrastructure-based
cognitive radio network (CRN) in coexistence with a cellular primary radio network (PRN) …

This paper explores joint power allocation and route selection in a multihop cognitive radio
network consisting of secondary transmitter and receiver connected through decode-and …

In this paper, we investigate the energy-efficient resource allocation in orthogonal frequency
division multiplexing (OFDM)-based cognitive radio (CR) networks, where we try to …

Cognitive radio is an emerging technology that aims for efficient spectrum usage by allowing
unlicensed (secondary) users to access licensed frequency bands under the condition of …

Energy efficiency (EE) is very crucial for future wireless communication systems, especially
for cognitive radio networks (CRNs). The EE performance relies on channel state …

Cognitive radio networks enable opportunistic sharing of bandwidth/spectrum. In this paper,
we introduce optimal control and scheduling algorithms for multi-hop cognitive radio …