Abstract: In wireless technologies the importance of spectrum is rapidly increases hence traffic of spectrum is also increases day by day. However, it seems that the current technologies do not utilize the licensed spectrum bands efficiently (6).So, energy detection in cognitive radio is proposed to improve the spectrum utilization. Cognitive Radios are the secondary users of the allocated spec...

Spectrum sensing is the basic and essential mechanisms of Cognitive Radio (CR) to find the unused spectrum. This paper presents an overview of CR architecture, discusses the characteristics and benefits of a CR. Energy detectionbased spectrum sensing has beenproposed and used widely because it doesn’t require transmitted signal properties, channel information, or even the type of modulation. In...

Using a formulation of quantum mechanics based on orthogonal polynomials in the energy and physical parameters, we study systems totally confined space associated with discrete Meixner polynomials. We present several examples such systems, derive their corresponding potential functions, plot some bound states.