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In this paper, the problem of determining the power allocation that maximizes the energy-efficiency of cognitive radio network is investigated as a constrained fractional programming problem (CFPP). The fractional objective is defined in terms of bits per Joule per Hz. The proposed CFPP is a nonlinear non-convex optimization problem. We propose an iterative power algorithm (IPA) that guarantees ε-optimal...
The research incorporates the application of GIS and remote sensing techniques for the solution of different problems related to natural hazard and disaster management. This report studies the affects of environmental pollution by natural phenomenon due to allergic reactions caused by pollen grains. With the onset of spring season, the number of allergy patients starts rising throughout the country...
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