The present scarcity of frequency spectrum allocated to radio communications has motivated
the search for technologies able to alleviate it by adapting the transmission to changing …

Due to increasing demand of high speed data rate for satellite multimedia and broadcasting
services and spectrum scarcity problem in satellite bands, exploring new techniques for …

The usable satellite spectrum is becoming scarce due to continuously increasing demand
for broadcast, multimedia and interactive services. In this context, cognitive satellite …

This paper presents initial results of the recently kicked-off FP7 ICT STREP project
“CoRaSat”(Cognitive Radio for Satellite Communications)[1]. Focus is put on the preliminary …

Applicability of cognitive radio (CR) techniques to satellite communications is investigated
and classification for the possible applications is foreseen in this paper. The proposed …

The Cognitive Radio approach can be considered as a promising and suitable solution to
solve in an efficient and flexible way the increasing and continuous demand of services and …

Secondary use of the satellite spectrum by a terrestrial system is studied in this paper,
focusing on broadcasting satellite services. Both spectrum sensing based access and …

In this chapter, spectrum database approaches in the terrestrial domain are reviewed, and
practical applications such as TV white space operation in the VHF and UHF bands are …

Cognitive Radio (CR) approach can be considered as a promising and suitable solution to
solve in an efficient and flexible way the increasing and continuous demand of services and …

In cognitive networks, the parameters of radios were adapted to achieve end-to-end or
network objectives such as spectral or energy efficiency, reliability, or throughput …