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 …

Spectrum sharing has attracted a lot of attention in cognitive radio recently as an effective
method of alleviating the spectrum scarcity problem by allowing unlicensed users to coexist …

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 …

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

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 …

Cognitive radio (CR) has emerged as a promising technology to exploit the unused portions
of spectrum in an opportunistic manner. The fixed spectrum allocation of governmental …

Cognitive radio (CR) is an enabling technology to allow unlicensed (secondary) users to
exploit the spectrum allocated to licensed (primary) users in an opportunistic manner. CR is …

A resource allocation framework is presented for spectrum underlay in cognitive wireless
networks. We consider both interference constraints for primary users and quality of service …

Currently, the radio spectrum is statically allocated and divided between licensed and
unlicensed frequencies. Due to this inflexible policy, some frequency bands are growing in …

The cognitive radio is an emerging technology that enables dynamic spectrum access in
wireless networks. The cognitive radio is capable of opportunistically using the available …