This paper investigates several important performance metrics of cognitive amplify-and-
forward (AF) relay networks with a best relay selection strategy and subject to non-identical …

The performance of underlay cognitive relay networks with multiple primary users and
multiple proactive decode-and-forward relays is investigated. Particularly, both interference …

In this paper, we examine the impact of antenna correlation on transmit antenna selection
with receive maximal ratio combining (TAS/MRC) in multiple‐input multiple‐output multiuser …

This paper analyses outage probability of cognitive relay transmissions using maximal ratio
combining (MRC) technique at relay and destination nodes. In the cognitive system, an …

In this paper, the performance of the outage probability (OP) for cognitive dual-hop relay
networks with amplify-and-forward (AF) relay under spectrum sharing constraints on primary …

With the wide‐spread wireless applications and services, the spectrum scarcity has become
a challenging problem. Thus, it is necessary to find a solution to have more spectrum bands …

In this paper, we consider a secondary incremental relaying (IR) network that operates
simultaneously with multiple primary receivers in the same frequency band under spectrum …

This paper presents the outage performance in cognitive relay networks. The closed-form
expression for the outage probability is derived in cognitive amplify-and-forward (AF) relay …

Cognitive relaying network is a promising technology to improve spectrum utilization and to
enhance the performance in practice. In this paper, with maximal transmit power and peak …

In the presence of the primary user's interference, the outage probability of a dual-hop
decode-and-forward (DF) cognitive relay network (CRN) over Rayleigh fading channels is …