The spectrum sensing problem has gained new aspects with cognitive radio and
opportunistic spectrum access concepts. It is one of the most challenging issues in cognitive …

Spectrum sensing is one of the essential tasks to have a cognitive radio system, which will
allow an unlicensed user, called secondary user, to utilize the spectrum while the licensed …

We define a cyclostationary signature as a feature which may be intentionally embedded in
a digital communications signal, detected through cyclostationary analysis and used as a …

Cognitive radios have been touted as a solution to communicating in a Dynamic Spectrum
Access environment. This paper examines how cognitive radios initially find one another …

This dissertation provides the theory, design, and implementation of a cognitive engine, the
enabling technology of cognitive radio. A cognitive radio is a wireless communications …

Various communication systems may benefit from physical layer watermarking. For example,
active sensing for dynamic spectrum access may be performed using physical layer …

The ability to detect what unlicensed radios are operating in a neigh borhood, their spectrum
occupancies and the spatial directions their signals are traversing is a fundamental primitive …

This comprehensive reference text discusses concepts of cognitive radio and the advances
in the field of spectrum sensing. This text discusses the concept of cognitive radio for next …

Cognitive radio-based Open Spectrum systems offer a solution to the issue of spectrum
scarcity by allowing wireless networks to dynamically access spectrum while coordinating to …

Cognitive radio (CR) technology is a promising way to improve the bandwidth efficiency of
underutilized radio spectra. For practical CR systems with limited a priori knowledge of the …