Cognitive radios hold tremendous promise for increasing spectral efficiency in wireless
systems. This paper surveys the fundamental capacity limits and associated transmission …

Cognitive Radio has been recognized as a promising way to improve spectrum efficiency of
wireless communications by exploiting under-utilized licensed spectrum in temporal …

In cognitive radio (CR) networks, there are scenarios where the secondary (lower priority)
users intend to communicate with each other by opportunistically utilizing the transmit …

Cognitive Radio Communications and Networks gives comprehensive and balanced
coverage of the principles of cognitive radio communications, cognitive networks, and …

Cognitive radio (CR) design aims to increase spectrum utilization by allowing the secondary
users (SUs) to coexist with the primary users (PUs), as long as the interference caused by …

Cognitive radios are promising solutions to the problem of overcrowded spectrum. In this
article we explore the throughput potential of cognitive communication. Different …

Widely regarded as one of the most promising emerging technologies for driving the future
development of wireless communications, cognitive radio has the potential to mitigate the …

Maximization of the weighted sum-rate of secondary users (SUs) possibly equipped with
multiantenna transmitters and receivers is considered in the context of cognitive radio (CR) …

A scenario with two single-user links, one licensed to use the spectral resource (primary)
and one unlicensed (secondary or cognitive), is considered. According to the cognitive radio …

Cognitive radio sensor networks are one of the kinds of application where cognitive
techniques can be adopted and have many potential applications, challenges and future …