WSN	Wireless sensor network
SWIPT	Simultaneous wireless information and power transfer
ZF	Zero-forcing
CSN	Cognitive sensor network
AF	Amplify-and-forward
PSR	Power splitting-based relaying
MIMO	Multiple-input multiple-output
TS	Time switching
PS	Power splitting
EH	Energy harvesting
ID	Information decoding
CCIs	Co-channel interferers
IFC	Interference channel
HD	Half-duplex
FD	Full-duplex
P2P	Point-to-point
MSE	Mean-squared-error
SCA	Successive convex approximation
AO	Alternating optimization
KKT	Karush–Kuhn–Tucker
CSI	Channel state information
AWGN	Additive white Gaussian noise
SOCP	Second-order cone programming