Wireless sensor networks (WSNs) use the unlicensed industrial, scientific, and medical
(ISM) band for transmissions. However, with the increasing usage and demand of these …

Cognitive Radio (CR) and its dynamic spectrum access capabilities can be exploited by
many wireless network architectures including sensor networks. Thus, cognitive radio …

Wireless sensor networks operating in the license-free spectrum suffer from uncontrolled
interference as those spectrum bands become increasingly crowded. The emerging …

This paper provides an overview of cognitive radio (CR) networks, with focus on the recent
advances in resource allocation techniques and the CR networks architectural design. The …

Dynamic spectrum access stands as a promising and spectrum-efficient communication
approach for resource-constrained multihop wireless sensor networks due to their event …

In this paper, a wireless cognitive radio sensor network is considered, where each sensor
node is equipped with cognitive radio and the network is a multi-carrier system operating on …

For conventional wireless networks, the main target of resource allocation (RA) is to
efficiently utilize the available resources. Generally, there are no changes in the available …

Software Defined Radio (SDR)-enabled cognitive radio network architectures are expected
to play an important role in the future 5G networks. Despite the increased research interest …

The design and development of energy and spectrum-efficient solutions are important in the
success of the Internet of Things (IoT). Due to the presence of an enormous number of smart …

Traditional static spectrum allocation policies have been to grant each wireless service
exclusive usage of certain frequency bands, leaving several spectrum bands unlicensed for …