As the lack of frequency resources became a critical problem in recent years, solutions had to be found in order to use the available spectrum in a more efficient way. Cognitive radio (CR) technology is a possible answer to this, by proposing a dynamic ...
Cognitive radio (CR) is introduced to efficiently and opportunistically use the limited spectrum to minimize the spectrum scarcity issues. Usually, service providers purchase the spectrum license from the policy-makers and spectrum regulator ...
Development of real-time systems is expensive and difficult, in part because of low-level languages that force developers to use facilities that are ad hoc, incomplete, and not portable. The Real-Time Systems Annex of Ada 2005 (along with the language ...
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