To solve the power supply problem of battery-limited Internet of Things devices (IoDs) and
the spectrum scarcity problem, simultaneous wireless information and power transfer …

Integrating simultaneous wireless information and power transfer (SWIPT) and cognitive
radio (CR) technologies into Internet-of-Things (IoT) networks, named SWIPT-enabled …

Cognitive industrial Internet of Things (CIIoT) can extend available spectrum resources by
accessing the spectrum licensed to primary user (PU) on the premise of not disturbing the …

Abstract Cognitive Internet of Things (CIoT) can improve spectrum utilization by accessing
idle 4G/5G spectrum, in order to provide better transmission quality. However, compared …

In the emergency scenario, wireless communication systems will face spectrum shortage
and energy cut-off in case of infrastructure destruction. In this paper, a green cognitive …

With the rapid development of wireless communication networks and Internet of Things
technology (IoT), higher requirements have been put forward for spectrum resource …

Internet of Things (IoT) is able to provide various physical objects to exchange their
information through the 6G wireless communication network. However, with the large …

Network energy resources are limited in communication systems, which may cause energy
shortages in mobile devices at the user end. Active Reconfigurable Intelligent Surfaces (A …

The number of Internet of Things (IoT) nodes is increasing in modern cities which demands
spectrum and energy efficiency. Fifth-generation (5G) networks are considered as a key …

In order to enhance the capacity and extend the lifetime of nodes for green Internet of Things
(IoT), the non-orthogonal multiple access (NOMA) is applied to cognitive orthogonal …