… Spectrum Sensing In this paper, we focus attention on the particular … cognitive radio rests:
spectrum sensing, defined as the task of finding spectrum holes by sensing the radio spectrum …

… ing and sensing machines to probe the radio spectrum was envisioned several decades
earlier (cf., [5]). Cognitive radio systems typically involve primary users of the spectrum, who are …

… issues in cognitive radio systems. In … of spectrum sensing methodologies for cognitive radio
is presented. Various aspects of spectrum sensing problem are studied from a cognitive radio …

… As a result, spectrum sensing has reborn as a very active … In this paper, spectrum sensing
techniques from the optimal … -based sensing, joint space-time sensing, and robust sensing …

… Spectrum sensing is a key function of cognitive radio to … and identify the available spectrum
for improving the spectrum’s … these issues, cooperative spectrum sensing has been shown to …

… , sensing interference limit etc. need to be addressed while solving the issue of spectrum
sensing in cognitive radio networks. These issues are discussed in details as follows [5], [8]. …

… sensing efficiency problem. In this paper, in order to solve both the interference avoidance
and the spectrum efficiency problem, an optimal spectrum sensing … the sensing parameters in …

… We assume that each cognitive radio performs local spectrum sensing independently. In …
cognitive radio. The local spectrum sensing is to decide between the following two hypotheses, …

… In this section we outline the major trade-offs involved in the implementation of spectrum
sensing functionality in the cognitive radio networks. The system designer should balance these …

… the interweave cognitive radio model. Further, the enabling technology, namely spectrum
sensing, … The basic concept behind interweave cognitive radio is to exploit the available under-…