The Internet of Things (IoT) that allows connectivity of network devices embedded with
sensors undergoes severe data exchange interference as the unlicensed spectrum band …

Energy-efficient design has become increasingly important to battery-powered wireless
devices. In this paper, we focus on the energy efficiency of a cognitive radio network, in …

Energy efficiency is a critical issue in wireless networks, not only due to the technological
limitations on energy supplies, but also due to the environmental impact caused by the …

Energy consumption of information and communication industry has generated increasing
concerns recently, aiming at reducing power consumption or increasing energy efficiency …

Under interference constraint and energy consumption constraint, to maximize the channel
utilization, an opportunistic spectrum access (OSA) strategy for a slotted secondary user …

Cognitive Radio (CR) with the capability of discovering the unused spectrum promises
higher spectrum efficiency-a pressing requirement for 5G networks. However, CR owes this …

Wireless sensor networks (WSNs) are one of the most important users of wireless
communication technologies in the coming years and some challenges in this area must be …

Opportunistic spectrum sharing (OSS) and cooperative spectrum sharing (CSS) are typical
dynamic spectrum accessing (DSA) technologies to effectively improve spectrum efficiency …

To minimize interference with primary users, one of the major concerns in cognitive radio is
to determine the allowable transmission power. This paper addresses the problem of power …

In cognitive radio sensor networks, following the conventional scheme, a secondary user is
always required to execute handoff procedure when detecting appearance of a primary …