Nonorthogonal multiple access (NOMA) superposes several user signals for simultaneous
transmission, considerably ameliorating spectral efficiency. To exploit efficiently radio …

Overlay networks allow the unlicensed transmitter (UT) to aid the licensed transmitter (LT) by
sending the superimposed signal including messages of both UT and LT with a higher …

In overlay networks, the cognitive sender (CS) assists the primary transmitter (PT) by
broadcasting the superposed signal composed of both cognitive and primary information …

This paper investigates a nonlinear energy scavenging overlay network (NLESON) wherein
a primary source (PS) communicates with a primary destination (PD) probably under aid of a …

This paper proposes an overlay network wherein a pair of licensed source (LS) and licensed
destination (LD) is adaptively assisted by a pair of unlicensed source (US) and unlicensed …

We propose a system model for energy harvesting-based underlay relaying networks with
transmit antenna selection and jamming where a multi-antenna unlicensed relay performs …

This paper considers an underlay relaying network where a cognitive relay performs decode-
and-forward operation to aid communication between a cognitive source-destination pair …

We introduce a relay selection strategy to secure energy scavenging-based cognitive
networks. The introduced strategy selects a relay which satisfies two conditions: i) decode …