This thesis extensively analyses the performance of an energy detector which is widely
employed to perform spectrum sensing in cognitive radio over different generalised channel …

The number of mobile devices is constantly growing, and the exclusivestatic spectrum
allocation approach is leading to the spectrum scarcity problem whensome of the licensed …

Spectrum sensing is a vital cognitive radio function that protects licensed users from
dangerous interference and finds accessible spectrum for better spectrum use. In practice …

This work focuses on the improvement of spectrum utilization by evaluating and proposing a
subset of radio scene analysis algorithms for opportunistic spectrum access deployment in a …

This paper presents joint sensing and transmission using a sector antenna in cognitive radio
network. A ray tracer technique is used for this study which deterministically models a typical …

Abstract Orthogonal Frequency Division Multiplexing (OFDM) is the popular multicarrier
modulation technique used in wireless communications, especially on fading channel …

Cognitive radio (CR) transceiver that can offer adequate data rate and multiuser support for
future wireless networks is a promising technology for reliable and spectrum‐efficient mobile …

A multi-user Cognitive Radio (CR) network resolves the problem of spectrum under
utilization and enables the deployment of new wireless applications in the fast growing …

Cognitive Radio (CR) transceiver that can offer adequate data rate and multi-user support
for future wireless networks is a promising technology for reliable and spectrum efficient …

Electromagnetic spectrum is a natural resource and at present its use is regulated by fixed
spectrum assignment policy. That is, spectrum is assigned to license holders or services on …