This paper considers a cognitive radio (CR) relay network which consists of a cognitive
source, a cognitive destination and a number of cognitive relay nodes that share spectrum …

We consider a cognitive radio (CR) relay network consisting of a cognitive source, a
cognitive destination and a number of cognitive relay nodes that share spectrum with a …

We consider a cognitive radio (CR) relay network consisting of a cognitive source, a
cognitive destination and a number of cognitive relay nodes that share spectrum with a …

In this paper, we propose a robust distributed relay beamformer design for cognitive radio
network operating under uncertainties in the available channel state information. The …

In this paper, we consider the problem of optimal distributed beamforming at the relay nodes
of a cognitive radio (CR) network. We assume that the CR network is a cooperative relay …

In this paper, we present a distributed relay beamformer design for a cognitive radio network
in which a cognitive (or secondary) transmit node communicates with a secondary receive …

In cognitive relay networks, the interferences from secondary users (SUs) and relays to
primary users are constrained to be lower than a threshold. The interference constraints are …

In this paper, the problem of cooperative beamforming is investigated in a heterogeneous
underlay cognitive network. A major difference exists between a conventional cooperative …

This paper considers a spectrum sharing based cognitive radio (CR) communication system,
which consists of a secondary user (SU) having multiple transmit antennas and a single …

This paper studies the cognitive one-way relay network which is composed of a pair of
primary transmitter and receiver. A two-step one-way amplify-and-forward (AF) relaying …