Multiple-input multiple-output (MIMO) techniques have shown numerous benefits in
improving communication reliability and spectrum efficiency in wireless communication. In …

In this paper, we investigate the effect of feedback delay on outage probability (OP) and
symbol error rate (SER) of cognitive amplify-and-forward (AF) relay networks with …

In this paper, we study the performance for the primary and secondary transmissions in
cognitive radio networks where the amplify-and-forward (AF) secondary relay helps to …

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 …

We examine the impact of multiple primary transmitters and receivers (PU-TxRx) on the
outage performance of cognitive decode-and-forward relay networks. In such a joint …

This letter evaluates the outage probability of cognitive relay networks based on the
underlay approach, while considering the mutual interference between cognitive system and …

In the expression of end-to-end signal-to-noise ratio (SNR) of cognitive relay networks, the
channel gaina of the interference links (from secondary nodes to primary nodes in the …

We analyze a relay assisted wireless communication link between two underlay massive
multiple-input multiple-output (MIMO) terminals. Specifically, an amplify and forwarding (AF) …

In this paper, we address the performance improvement of cooperative cognitive radio
networks (CCRNs) with secondary users exploiting multiple antennas in the multiple input …

In the presence of primary user (PU), most of researches have often neglected the effect of
the interference from the primary transmitter to secondary receiver in cognitive radio (CR) …