In this work, an uplink secondary Internet of Things (IoT) device scheduling and power
allocation problem based on imperfect channel state information (CSI) and imperfect …

To improve the radio spectral efficiency for 5G and beyond, novel radio access techniques
need to be designed to accommodate unprecedented number of connected devices, and …

To support the massive connectivity in Internet of Things (IoT), several promising techniques
like cognitive radio (CR) and non-orthogonal multiple access (NOMA) enables the user to …

Cognitive radio and backscatter communication (BackCom) have been viewed as two
promising technologies for the future green Internet of Things (IoT). The combination of …

Non-orthogonal multiple access (NOMA)-based cognitive wireless networks can improve the
spectral efficiency to utilize the vacant spectrum resource and exploit the power domain …

The Internet of Things (IoT) has attracted significant attentions in the fifth generation mobile
networks and the smart cities. However, considering the large numbers of connectivity …

Resource allocation (RA) is a key technique to guarantee the quality of service of users and
maximize the system capacity in cognitive nonorthogonal multiple access (NOMA) networks …

In this paper, a downlink security-aware resource allocation problem with delay constraint
via spectrum sensing is modeled as a mixed integer non-linear problem for non-orthogonal …

Due to the growing demand for spectral resources with the emergence of IoT networks and
applications, cooperative cognitive radio IoT networks (CCR-IoTN) are expected to play an …

The development of Industrial Internet of Things (IIoT) has been limited due to the shortage
of spectrum resources. Based on cognitive radio, the cognitive IIoT (CIIoT) has been …