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 …

In this work, we consider a uni-directional (one way) relay network with a pair of primary
transmitter and receiver which are relay-assisted by multiple cognitive radio (CR) terminals …

This paper investigates the joint design of relay and receive beamforming vectors in
cognitive relay networks with the secondary network (SN) using the same frequency band …

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 this paper, we investigate a cognitive radio (CR) relay network with multiple relay nodes
that help forwarding the signal of CR users. Best relay selection is considered to take …

In this paper we investigate the cooperative beamforming in cognitive radio network (CRN)
composed of a primary network (PN) and a secondary network (SN). In the SN, the …

In cognitive radio (CR) networks, the secondary users (SUs) try to communicate
opportunistically in the frequency band originally allocated to a primary network. This …

In this paper, the filter-and-forward (FF) strategy is developed for cooperative relays in
cognitive radio (CR) networks with the underlay structure and the frequency selective fading …

In this paper, we consider the problem of distributed network beamforming for a bidirectional
cognitive relay network which consists of two secondary transceivers and K cognitive relay …

In this paper, we propose a distributed relay beam-forming design in an underlay based
cognitive relay network. In the proposed approach, beamforming coefficients of the …